Windows
Analysis Report
UPDATED SOA.pdf.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Yara detected FormBook
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Potential key logger detected (key state polling based)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Classification
- System is w10x64
UPDATED SOA.pdf.exe (PID: 7064 cmdline:
"C:\Users\ user\Deskt op\UPDATED SOA.pdf.e xe" MD5: 9CB3E388938DE775C97FE7E15DB5BEF7) powershell.exe (PID: 5332 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\Des ktop\UPDAT ED SOA.pdf .exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) conhost.exe (PID: 2476 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) powershell.exe (PID: 3448 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\TKgtDXu aZu.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) conhost.exe (PID: 1900 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) WmiPrvSE.exe (PID: 4048 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) schtasks.exe (PID: 2080 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\TKgt DXuaZu" /X ML "C:\Use rs\user\Ap pData\Loca l\Temp\tmp CB57.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) conhost.exe (PID: 2056 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) UPDATED SOA.pdf.exe (PID: 5936 cmdline:
"C:\Users\ user\Deskt op\UPDATED SOA.pdf.e xe" MD5: 9CB3E388938DE775C97FE7E15DB5BEF7) S1OoUcW6nwo.exe (PID: 1136 cmdline:
"C:\Progra m Files (x 86)\pdtrYV hmFZZvFThw WBoxFercZX eZeXyzNusw dZcmngxeNB IrdNBbEV\h 5yd4NrV4Lj Y.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) expand.exe (PID: 5756 cmdline:
"C:\Window s\SysWOW64 \expand.ex e" MD5: 544B0DBFF3F393BCE8BB9D815F532D51) S1OoUcW6nwo.exe (PID: 5812 cmdline:
"C:\Progra m Files (x 86)\pdtrYV hmFZZvFThw WBoxFercZX eZeXyzNusw dZcmngxeNB IrdNBbEV\h XzhEeGUqcR .exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) firefox.exe (PID: 648 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
TKgtDXuaZu.exe (PID: 2692 cmdline:
C:\Users\u ser\AppDat a\Roaming\ TKgtDXuaZu .exe MD5: 9CB3E388938DE775C97FE7E15DB5BEF7) schtasks.exe (PID: 2188 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\TKgt DXuaZu" /X ML "C:\Use rs\user\Ap pData\Loca l\Temp\tmp DE33.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) conhost.exe (PID: 5796 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) TKgtDXuaZu.exe (PID: 5164 cmdline:
"C:\Users\ user\AppDa ta\Roaming \TKgtDXuaZ u.exe" MD5: 9CB3E388938DE775C97FE7E15DB5BEF7)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 2 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems), @blu3_team (idea), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Persistence and Installation Behavior |
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Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-02-18T05:06:06.630158+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50061 | 5.83.145.167 | 80 | TCP |
2025-02-18T05:06:52.957808+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49742 | 81.88.63.46 | 80 | TCP |
2025-02-18T05:07:16.295125+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49838 | 57.129.59.27 | 80 | TCP |
2025-02-18T05:07:29.695961+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49927 | 185.125.27.32 | 80 | TCP |
2025-02-18T05:07:43.076701+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50017 | 185.173.109.83 | 80 | TCP |
2025-02-18T05:07:56.414070+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50025 | 199.115.118.7 | 80 | TCP |
2025-02-18T05:08:09.756075+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50029 | 46.30.215.152 | 80 | TCP |
2025-02-18T05:08:31.481774+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50033 | 104.21.64.1 | 80 | TCP |
2025-02-18T05:08:44.953171+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50037 | 69.57.163.227 | 80 | TCP |
2025-02-18T05:08:58.575034+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50041 | 188.114.96.3 | 80 | TCP |
2025-02-18T05:09:11.821886+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50045 | 199.59.243.228 | 80 | TCP |
2025-02-18T05:09:25.115172+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50049 | 104.21.44.136 | 80 | TCP |
2025-02-18T05:09:38.853345+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50053 | 156.237.132.251 | 80 | TCP |
2025-02-18T05:09:52.834301+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 50057 | 192.186.58.31 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
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2025-02-18T05:07:08.674020+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49785 | 57.129.59.27 | 80 | TCP |
2025-02-18T05:07:11.188871+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49802 | 57.129.59.27 | 80 | TCP |
2025-02-18T05:07:13.799973+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49822 | 57.129.59.27 | 80 | TCP |
2025-02-18T05:07:22.095487+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49877 | 185.125.27.32 | 80 | TCP |
2025-02-18T05:07:24.627888+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49895 | 185.125.27.32 | 80 | TCP |
2025-02-18T05:07:27.155376+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49910 | 185.125.27.32 | 80 | TCP |
2025-02-18T05:07:35.421444+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49964 | 185.173.109.83 | 80 | TCP |
2025-02-18T05:07:37.974560+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49980 | 185.173.109.83 | 80 | TCP |
2025-02-18T05:07:40.502575+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49999 | 185.173.109.83 | 80 | TCP |
2025-02-18T05:07:48.780347+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50022 | 199.115.118.7 | 80 | TCP |
2025-02-18T05:07:51.336942+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50023 | 199.115.118.7 | 80 | TCP |
2025-02-18T05:07:53.894966+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50024 | 199.115.118.7 | 80 | TCP |
2025-02-18T05:08:02.084268+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50026 | 46.30.215.152 | 80 | TCP |
2025-02-18T05:08:04.657034+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50027 | 46.30.215.152 | 80 | TCP |
2025-02-18T05:08:07.217472+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50028 | 46.30.215.152 | 80 | TCP |
2025-02-18T05:08:23.844296+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50030 | 104.21.64.1 | 80 | TCP |
2025-02-18T05:08:26.414061+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50031 | 104.21.64.1 | 80 | TCP |
2025-02-18T05:08:28.993620+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50032 | 104.21.64.1 | 80 | TCP |
2025-02-18T05:08:37.338993+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50034 | 69.57.163.227 | 80 | TCP |
2025-02-18T05:08:39.860961+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50035 | 69.57.163.227 | 80 | TCP |
2025-02-18T05:08:42.415124+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50036 | 69.57.163.227 | 80 | TCP |
2025-02-18T05:08:50.913543+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50038 | 188.114.96.3 | 80 | TCP |
2025-02-18T05:08:53.474048+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50039 | 188.114.96.3 | 80 | TCP |
2025-02-18T05:08:56.008501+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50040 | 188.114.96.3 | 80 | TCP |
2025-02-18T05:09:04.188686+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50042 | 199.59.243.228 | 80 | TCP |
2025-02-18T05:09:06.735968+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50043 | 199.59.243.228 | 80 | TCP |
2025-02-18T05:09:09.274201+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50044 | 199.59.243.228 | 80 | TCP |
2025-02-18T05:09:17.461592+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50046 | 104.21.44.136 | 80 | TCP |
2025-02-18T05:09:19.999267+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50047 | 104.21.44.136 | 80 | TCP |
2025-02-18T05:09:22.582176+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50048 | 104.21.44.136 | 80 | TCP |
2025-02-18T05:09:31.236760+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50050 | 156.237.132.251 | 80 | TCP |
2025-02-18T05:09:33.766349+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50051 | 156.237.132.251 | 80 | TCP |
2025-02-18T05:09:36.330611+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50052 | 156.237.132.251 | 80 | TCP |
2025-02-18T05:09:45.147301+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50054 | 192.186.58.31 | 80 | TCP |
2025-02-18T05:09:47.683075+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50055 | 192.186.58.31 | 80 | TCP |
2025-02-18T05:09:50.450149+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50056 | 192.186.58.31 | 80 | TCP |
2025-02-18T05:10:00.755234+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50058 | 5.83.145.167 | 80 | TCP |
2025-02-18T05:10:03.302360+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50059 | 5.83.145.167 | 80 | TCP |
2025-02-18T05:10:05.862815+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50060 | 5.83.145.167 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | ReversingLabs: |
Source: | Virustotal: | Perma Link | ||
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Source: | Code function: | 0_2_02303E0C | |
Source: | Code function: | 10_2_015B3E0C |
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