Analysis
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max time kernel
117s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 10:51
Static task
static1
Behavioral task
behavioral1
Sample
SHIPPING DOCUMENTS.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
SHIPPING DOCUMENTS.exe
Resource
win10v2004-20240508-en
General
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Target
SHIPPING DOCUMENTS.exe
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Size
673KB
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MD5
947f933a1a4ef419ed23aaf93c837668
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SHA1
b9d752237aee95d3335a16522827b3d03921e8c9
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SHA256
21d546daca396508a4777d88c6b07a198fd84e0b368ffa19d2c7eaa961ec014d
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SHA512
66c0d58206ae3025f6bb0a943d1639e9623fecbffcbe21c95e1dd8eeeb0ec81f9efef2bbc0837ae798127fd75b91fcabe090f0fa84169fce7e6514b023d25fdf
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SSDEEP
12288:oaIfB/bX0GROFMrhVqK2BKrLc7Hz/dogK69ln45ydK3tBB:YJ/rpROFCvqhBKrLOTlsI2ydg
Malware Config
Extracted
Protocol: smtp- Host:
mail.santexknit.com - Port:
587 - Username:
[email protected] - Password:
036971sklctg
Extracted
agenttesla
Protocol: smtp- Host:
mail.santexknit.com - Port:
587 - Username:
[email protected] - Password:
036971sklctg - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2364 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation SHIPPING DOCUMENTS.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NcnBt = "C:\\Users\\Admin\\AppData\\Roaming\\NcnBt\\NcnBt.exe" SHIPPING DOCUMENTS.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 24 ip-api.com 21 api.ipify.org 22 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4216 set thread context of 4248 4216 SHIPPING DOCUMENTS.exe 92 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3924 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2364 powershell.exe 2364 powershell.exe 4248 SHIPPING DOCUMENTS.exe 4248 SHIPPING DOCUMENTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 4248 SHIPPING DOCUMENTS.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4216 wrote to memory of 2364 4216 SHIPPING DOCUMENTS.exe 88 PID 4216 wrote to memory of 2364 4216 SHIPPING DOCUMENTS.exe 88 PID 4216 wrote to memory of 2364 4216 SHIPPING DOCUMENTS.exe 88 PID 4216 wrote to memory of 3924 4216 SHIPPING DOCUMENTS.exe 90 PID 4216 wrote to memory of 3924 4216 SHIPPING DOCUMENTS.exe 90 PID 4216 wrote to memory of 3924 4216 SHIPPING DOCUMENTS.exe 90 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92 PID 4216 wrote to memory of 4248 4216 SHIPPING DOCUMENTS.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS.exe"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4216 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kEDrUYYd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2364
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kEDrUYYd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp859B.tmp"2⤵
- Creates scheduled task(s)
PID:3924
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C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS.exe"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4248
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD59cfc3df2d711f2fe5177ff86b111417e
SHA10e99f5c9be22e4d2f7e5515109a1b4a06b37cf3c
SHA256564996bce009cf00bcc24bf83819c54aa41b36a47a87394e7aa75461b7d8918e
SHA5124d07303c9d5a656ffde2acfd0b3eff7adae9466b5f50d6d8b41eb4729080e56f39689fc9f61818b58a9dda32bb9b970fa7f0dda1c518ca8f63b9f171a77fd1af