Windows Analysis Report
bUAB.exe

Overview

General Information

Sample name: bUAB.exe
Analysis ID: 1426963
MD5: e3a50cd4b0d687de0371979907eecec8
SHA1: a985891877f61b6b68b9584b3ebedad6941eb7ec
SHA256: bbfd0355383f8e0df1442c646737854bfccb138b9c89e86c64c3d49d31e5fbf8
Tags: DcRatexe
Infos:

Detection

AsyncRAT, DcRat
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected AsyncRAT
Yara detected DcRat
.NET source code references suspicious native API functions
Machine Learning detection for sample
Queries memory information (via WMI often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains long sleeps (>= 3 min)
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
AsyncRAT AsyncRAT is a Remote Access Tool (RAT) designed to remotely monitor and control other computers through a secure encrypted connection. It is an open source remote administration tool, however, it could also be used maliciously because it provides functionality such as keylogger, remote desktop control, and many other functions that may cause harm to the victims computer. In addition, AsyncRAT can be delivered via various methods such as spear-phishing, malvertising, exploit kit and other techniques. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.asyncrat
Name Description Attribution Blogpost URLs Link
DCRat DCRat is a typical RAT that has been around since at least June 2019. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.dcrat

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: bUAB.exe Avira: detected
Found malware configuration
Source: bUAB.exe Malware Configuration Extractor: AsyncRAT {"Ports": ["2016"], "Server": ["window10.duckdns.org"], "Mutex": "DcRatMutex_qw6rgvfu6ruj67fere5fhy HJG", "Certificate": "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", "Server Signature": "CfBGWgaZcSFbRY1ZjzIeyTGhsM2okmwQOujBLV9KdxvTK5nuKtxl0YRc2dkODk9hElCZE1bbstsI9BFpQuIkGa59o27bUU8qSGAak3ZjEIlIgtbTjjgbQCxSQToalikk8qsDvFS4CG/X5uWQ60CVgykbly7uvjFvKlV47JqVu1A="}
Multi AV Scanner detection for submitted file
Source: bUAB.exe ReversingLabs: Detection: 84%
Machine Learning detection for sample
Source: bUAB.exe Joe Sandbox ML: detected
Source: bUAB.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Networking
barindex
Snort IDS alert for network traffic
Source: Traffic Snort IDS: 2034847 ET TROJAN Observed Malicious SSL Cert (AsyncRAT) 172.94.39.213:2016 -> 192.168.2.4:49731
Source: Traffic Snort IDS: 2848152 ETPRO TROJAN Observed Malicious SSL Cert (AsyncRAT Variant) 172.94.39.213:2016 -> 192.168.2.4:49731
Uses dynamic DNS services
Source: unknown DNS query: name: window10.duckdns.org
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: M247GB M247GB
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown DNS traffic detected: queries for: window10.duckdns.org
Source: bUAB.exe, 00000000.00000002.2912273923.000000001AFF3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en
Source: bUAB.exe, 00000000.00000002.2909667773.0000000000807000.00000004.00000020.00020000.00000000.sdmp, 77EC63BDA74BD0D0E0426DC8F80085060.0.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: bUAB.exe, 00000000.00000002.2912273923.000000001AFEA000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab;
Source: bUAB.exe, 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2910315909.0000000002743000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name

Key, Mouse, Clipboard, Microphone and Screen Capturing
barindex
Yara detected AsyncRAT
Source: Yara match File source: bUAB.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: bUAB.exe, type: SAMPLE Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: bUAB.exe, type: SAMPLE Matched rule: Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc. Author: ditekSHen
Source: bUAB.exe, type: SAMPLE Matched rule: Detects executables attemping to enumerate video devices using WMI Author: ditekSHen
Source: bUAB.exe, type: SAMPLE Matched rule: Detects executables containing the string DcRatBy Author: ditekSHen
Source: dump.pcap, type: PCAP Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc. Author: ditekSHen
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: Detects executables attemping to enumerate video devices using WMI Author: ditekSHen
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: Detects executables containing the string DcRatBy Author: ditekSHen
Source: 00000000.00000002.2909667773.00000000007FE000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000002.2910315909.00000000029C3000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000002.2909667773.0000000000807000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000002.2912273923.000000001AFA6000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: 00000000.00000002.2910315909.0000000002743000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR Matched rule: Windows_Trojan_DCRat_1aeea1ac Author: unknown
Detected potential crypto function
Source: C:\Users\user\Desktop\bUAB.exe Code function: 0_2_00007FFD9B8A6752 0_2_00007FFD9B8A6752
Source: C:\Users\user\Desktop\bUAB.exe Code function: 0_2_00007FFD9B8A0600 0_2_00007FFD9B8A0600
Source: C:\Users\user\Desktop\bUAB.exe Code function: 0_2_00007FFD9B8A59A6 0_2_00007FFD9B8A59A6
Sample file is different than original file name gathered from version info
Source: bUAB.exe, 00000000.00000000.1660557765.00000000003BE000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenameClient.exe" vs bUAB.exe
Source: bUAB.exe Binary or memory string: OriginalFilenameClient.exe" vs bUAB.exe
Yara signature match
Source: bUAB.exe, type: SAMPLE Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: bUAB.exe, type: SAMPLE Matched rule: INDICATOR_SUSPICIOUS_EXE_B64_Artifacts author = ditekSHen, description = Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Source: bUAB.exe, type: SAMPLE Matched rule: INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice author = ditekSHen, description = Detects executables attemping to enumerate video devices using WMI
Source: bUAB.exe, type: SAMPLE Matched rule: INDICATOR_SUSPICIOUS_EXE_DcRatBy author = ditekSHen, description = Detects executables containing the string DcRatBy
Source: dump.pcap, type: PCAP Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_B64_Artifacts author = ditekSHen, description = Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice author = ditekSHen, description = Detects executables attemping to enumerate video devices using WMI
Source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_DcRatBy author = ditekSHen, description = Detects executables containing the string DcRatBy
Source: 00000000.00000002.2909667773.00000000007FE000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000002.2910315909.00000000029C3000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000002.2909667773.0000000000807000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000002.2912273923.000000001AFA6000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: 00000000.00000002.2910315909.0000000002743000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR Matched rule: Windows_Trojan_DCRat_1aeea1ac os = windows, severity = x86, creation_date = 2022-01-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.DCRat, fingerprint = fc67d76dc916b7736de783aa245483381a8fe071c533f3761e550af80a873fe9, id = 1aeea1ac-69b9-4cc6-91af-18b7a79f35ce, last_modified = 2022-04-12
Source: bUAB.exe, Settings.cs Base64 encoded string: 'WsUhTQje46qdg2lN6JVthKiw+LAQPDmUXNV5eUfEgROdFv89WKJ5OXBQdA0ZV8DCeYqmjvHT+Fa4fGwUeLUQyw==', 'TkYgoLUZBVzMxX20nfUGzR0GU0lcgPfvXXdATyC6183xEBWX/txToy/uzmYYMLxWn7Ngs0Nb46W8/iHfO2jAvB3utnkB9ylAt5KbkBV2XKw=', 'VmzBJGQ03lXVyrXTnqsJeQzo4Uutzy+bnv96bRJu+VfOcm27jIsPlggtAUMPT6ngayeinTyrzw1GSowjSZ78jA==', 'tsQctTio8bwbLQHkd9MfpL5jMkUBsZiLhpb1ppBFw8lAL+ztbcRrM8CA6i8vSDsh0M83PaMtnTj43hkcl9yY7A==', 'gzbSl59ZwlrDDVgvI2gcD1WGL1yS/K4kbXaiB5D+2d0LbU4ZB3yyRj/n4eomiTs7zG6MBAYzEyjMFk38fR/e/gLs92IVR9p+9cXhspQmsFRQVB6DD1Tr79kfQAofEWiw', 'H2WEsBgVBmC9/R62QTBaX89PgGnTZsbjdmw6EU2Fhy+ylpXiVfAm6YeTAxT+OlMR5llG4AUOodkNIiOBNNakLA==', 'PeOYw+bEtEhjCnll95hRjz3upv9bP1uivsDB4g3zuVS6br9QlKUe8PM0BTbiO73AMT7LRVofPKAHx+ILILCW/g==', 'Vu8u5NKpQ90jbn0VVcYy/4Rly7nw8QOXeVhFueu99AtFwsNK9u59fhMgWx81PI2dBv0boTu3zi4MTXhEndRTcA==', 'YlvdchsTMVZZxYCDwrwxPovuwOCjuIdff+Em4X+Ui5VT4Tr8CJKmMv7r/EpbEDhOVKySH5miswBAlCMnIMUa6w=='
Source: bUAB.exe, NormalStartup.cs Base64 encoded string: 'L2Mgc2NodGFza3MgL2NyZWF0ZSAvZiAvc2Mgb25sb2dvbiAvcmwgaGlnaGVzdCAvdG4g', 'U09GVFdBUkVcTWljcm9zb2Z0XFdpbmRvd3NcQ3VycmVudFZlcnNpb25cUnVuXA=='
Source: classification engine Classification label: mal100.troj.evad.winEXE@1/2@5/1
Source: C:\Users\user\Desktop\bUAB.exe Mutant created: NULL
Source: C:\Users\user\Desktop\bUAB.exe Mutant created: \Sessions\1\BaseNamedObjects\DcRatMutex_qw6rgvfu6ruj67fere5fhy HJG
Source: bUAB.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: bUAB.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.80%
Source: C:\Users\user\Desktop\bUAB.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: bUAB.exe ReversingLabs: Detection: 84%
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: wbemcomn.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: secur32.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: schannel.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: mskeyprotect.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ncryptsslp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: cryptnet.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: dhcpcsvc6.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: dhcpcsvc.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: webio.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: cabinet.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: sxs.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: devenum.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: ntmarta.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: devobj.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Section loaded: msdmo.dll Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32 Jump to behavior
Source: bUAB.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: bUAB.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\bUAB.exe Code function: 0_2_00007FFD9B8A00BD pushad ; iretd 0_2_00007FFD9B8A00C1

Boot Survival
barindex
Yara detected AsyncRAT
Source: Yara match File source: bUAB.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Source: C:\Users\user\Desktop\bUAB.exe Registry key monitored for changes: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Registry key monitored for changes: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Yara detected AsyncRAT
Source: Yara match File source: bUAB.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR
Queries memory information (via WMI often done to detect virtual machines)
Source: C:\Users\user\Desktop\bUAB.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : select * from Win32_CacheMemory
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: bUAB.exe Binary or memory string: TASKMGR.EXE#PROCESSHACKER.EXE
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\bUAB.exe Memory allocated: B00000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Memory allocated: 1A6C0000 memory reserve | memory write watch Jump to behavior
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\bUAB.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\Desktop\bUAB.exe Window / User API: threadDelayed 4470 Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Window / User API: threadDelayed 5373 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\bUAB.exe TID: 7760 Thread sleep time: -30000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe TID: 7816 Thread sleep time: -23980767295822402s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe TID: 7824 Thread sleep count: 4470 > 30 Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe TID: 7824 Thread sleep count: 5373 > 30 Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe File Volume queried: C:\ FullSizeInformation Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: bUAB.exe, 00000000.00000002.2912273923.000000001AFA6000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW0
Source: bUAB.exe, 00000000.00000002.2912981417.000000001B19F000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Enables debug privileges
Source: C:\Users\user\Desktop\bUAB.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
.NET source code references suspicious native API functions
Source: bUAB.exe, AntiProcess.cs Reference to suspicious API methods: OpenProcess(1u, bInheritHandle: false, processId)
Source: bUAB.exe, Win32.cs Reference to suspicious API methods: Marshal.GetDelegateForFunctionPointer(GetProcAddress(LoadLibraryA(ref name), ref method), typeof(CreateApi))
Source: bUAB.exe, Win32.cs Reference to suspicious API methods: Marshal.GetDelegateForFunctionPointer(GetProcAddress(LoadLibraryA(ref name), ref method), typeof(CreateApi))
Source: bUAB.exe, Amsi.cs Reference to suspicious API methods: Win32.VirtualAllocEx(procAddress, (UIntPtr)(ulong)patch.Length, 64u, out var _)
Source: bUAB.exe, 00000000.00000002.2910315909.0000000002A00000.00000004.00000800.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2910315909.0000000002735000.00000004.00000800.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2910315909.0000000002727000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager
Source: bUAB.exe, 00000000.00000002.2910315909.0000000002A00000.00000004.00000800.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2910315909.0000000002735000.00000004.00000800.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2910315909.0000000002727000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager@
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\bUAB.exe Queries volume information: C:\Users\user\Desktop\bUAB.exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\bUAB.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Lowering of HIPS / PFW / Operating System Security Settings
barindex
Yara detected AsyncRAT
Source: Yara match File source: bUAB.exe, type: SAMPLE
Source: Yara match File source: 0.0.bUAB.exe.3b0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR
AV process strings found (often used to terminate AV products)
Source: bUAB.exe, 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: MSASCui.exe
Source: bUAB.exe, 00000000.00000002.2912273923.000000001AFF3000.00000004.00000020.00020000.00000000.sdmp, bUAB.exe, 00000000.00000002.2909667773.00000000007FB000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: %ProgramFiles%\Windows Defender\MsMpeng.exe
Source: bUAB.exe, 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: procexp.exe
Source: bUAB.exe, 00000000.00000000.1660518176.00000000003B2000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: MsMpEng.exe
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Source: C:\Users\user\Desktop\bUAB.exe WMI Queries: IWbemServices::ExecQuery - root\SecurityCenter2 : Select * from AntivirusProduct

Stealing of Sensitive Information
barindex
Yara detected DcRat
Source: Yara match File source: 00000000.00000002.2910315909.00000000029C3000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.0000000002743000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected DcRat
Source: Yara match File source: 00000000.00000002.2910315909.00000000029C3000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.00000000026C1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2910315909.0000000002743000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bUAB.exe PID: 7532, 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 dnsIp2 2 Behavior Graph ID: 1426963 Sample: bUAB.exe Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 10 window10.duckdns.org 2->10 12 edge.ds-c7110-microsoft.global.dns.qwilted-cds.cqloud.com 2->12 14 bg.microsoft.map.fastly.net 2->14 18 Snort IDS alert for network traffic 2->18 20 Found malware configuration 2->20 22 Malicious sample detected (through community Yara rule) 2->22 26 7 other signatures 2->26 6 bUAB.exe 1 2 2->6         started        signatures3 24 Uses dynamic DNS services 10->24 process4 dnsIp5 16 window10.duckdns.org 172.94.39.213, 2016, 49731 M247GB United States 6->16 28 Queries memory information (via WMI often done to detect virtual machines) 6->28 signatures6
  • 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
172.94.39.213
 window10.duckdns.org United States
9009 M247GB true

Contacted Domains

Name IP Active
bg.microsoft.map.fastly.net 199.232.210.172 true
edge.ds-c7110-microsoft.global.dns.qwilted-cds.cqloud.com 217.20.63.34 true
window10.duckdns.org 172.94.39.213 true