Analysis
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max time kernel
91s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:52
Static task
static1
Behavioral task
behavioral1
Sample
Shipping documents.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Shipping documents.exe
Resource
win10v2004-20220414-en
General
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Target
Shipping documents.exe
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Size
455KB
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MD5
2879721f8b9759ef832a173a4aef7f74
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SHA1
e44ce3d55b58edd0fbdb51b78a2db0ca1da35d32
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SHA256
24be3b1c3a8a56f3028bb533082f4e8e93f1405b7066e4facde544c22010afa5
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SHA512
50014f4ab829d1e5379952ac2a19c46abfd0e73585231a6d6e0078db2218ff92149cc1b1d547eef7295ed3c48ff0866586509d5a2258b3bc2dd3bf1ccabe6625
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.microtechlab.in - Port:
587 - Username:
[email protected] - Password:
pune@123
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2516-138-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Disables Task Manager via registry modification
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Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Shipping documents.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation Shipping documents.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Shipping documents.exedescription pid process target process PID 4644 set thread context of 2516 4644 Shipping documents.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3752 2516 WerFault.exe RegSvcs.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
Shipping documents.exeRegSvcs.exepid process 4644 Shipping documents.exe 4644 Shipping documents.exe 4644 Shipping documents.exe 2516 RegSvcs.exe 2516 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Shipping documents.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 4644 Shipping documents.exe Token: SeDebugPrivilege 2516 RegSvcs.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
Shipping documents.exeRegSvcs.exedescription pid process target process PID 4644 wrote to memory of 5084 4644 Shipping documents.exe schtasks.exe PID 4644 wrote to memory of 5084 4644 Shipping documents.exe schtasks.exe PID 4644 wrote to memory of 5084 4644 Shipping documents.exe schtasks.exe PID 4644 wrote to memory of 2232 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2232 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2232 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 4644 wrote to memory of 2516 4644 Shipping documents.exe RegSvcs.exe PID 2516 wrote to memory of 552 2516 RegSvcs.exe REG.exe PID 2516 wrote to memory of 552 2516 RegSvcs.exe REG.exe PID 2516 wrote to memory of 552 2516 RegSvcs.exe REG.exe PID 2516 wrote to memory of 3388 2516 RegSvcs.exe netsh.exe PID 2516 wrote to memory of 3388 2516 RegSvcs.exe netsh.exe PID 2516 wrote to memory of 3388 2516 RegSvcs.exe netsh.exe
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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TixoXNZlqyKY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5350.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 16083⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2516 -ip 25161⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp5350.tmpFilesize
1KB
MD597ddc772e8d000cfa1141dfdf4a10e27
SHA14744742387ba29bc0c7837b8a3a87c403a97fe89
SHA256b43aad1fa97c724d3d48dbb3846bd31418c6db000dad963ecb584bd943fd32da
SHA5123e8df88333914f9e0092b048df136df5b263b91801067b03b71104af54f41862e14a255179a1d27c13672b220dab7ece8ad8a6bffa244f8e862ed3db33862353
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memory/552-140-0x0000000000000000-mapping.dmp
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memory/2232-136-0x0000000000000000-mapping.dmp
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memory/2516-139-0x0000000005E60000-0x0000000005EC6000-memory.dmpFilesize
408KB
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memory/2516-137-0x0000000000000000-mapping.dmp
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memory/2516-138-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/2516-141-0x0000000006B50000-0x0000000006BA0000-memory.dmpFilesize
320KB
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memory/3388-142-0x0000000000000000-mapping.dmp
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memory/4644-133-0x00000000068D0000-0x0000000006E74000-memory.dmpFilesize
5.6MB
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memory/4644-132-0x0000000005AE0000-0x0000000005B72000-memory.dmpFilesize
584KB
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memory/4644-130-0x0000000000FA0000-0x0000000001018000-memory.dmpFilesize
480KB
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memory/4644-131-0x00000000059A0000-0x0000000005A3C000-memory.dmpFilesize
624KB
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memory/5084-134-0x0000000000000000-mapping.dmp