Analysis
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max time kernel
192s -
max time network
203s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:26
General
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Target
DHL_AWB #1008936572891_pdf.exe
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Size
580KB
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MD5
b513067d4f9f767961d0f2bc798e0cf9
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SHA1
5f08038c10344fa9028a5c7c9aab4fd00c73eda5
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SHA256
0bc02b5ed2a298e9b8859eac4c03ca7b0ba2ab7e00a3b8477967428cc5f4d88b
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SHA512
6b8045b902a8e2a0e06ca400c1540a40963413bfb7acb161941d32816b9431c75df9e106345daadd90d247d9fe083db9e8aab20222112338d8beab37a115b8dc
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.rulmeca.co - Port:
587 - Username:
[email protected] - Password:
jbinkowska@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
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.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\YxFvmjSbtbttDB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp26FB.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL_AWB #1008936572891_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp26FB.tmpFilesize
1KB
MD5be7b55e88d42b749f963aa4a8209c9e3
SHA176c07655058256363f6f7c0770dd27d7421f4b09
SHA25683d33b2bec06aa8174316a136782058be47093874662c5100904bfd9bb3f67ec
SHA5121501c81efeabd6f30194da008fbdc2f4e5fb692bac9d89e9a6289628a91c23812718e234a61359962367a5bfd1e2c17f1a0f8a00342b9ea3b4df40f29ab3147b
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memory/960-136-0x0000000000000000-mapping.dmp
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memory/1048-138-0x0000000000000000-mapping.dmp
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memory/1048-139-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1048-140-0x00000000061B0000-0x0000000006216000-memory.dmpFilesize
408KB
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memory/1048-141-0x0000000006770000-0x00000000067C0000-memory.dmpFilesize
320KB
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memory/3788-130-0x0000000000850000-0x00000000008E8000-memory.dmpFilesize
608KB
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memory/3788-131-0x0000000005250000-0x00000000052EC000-memory.dmpFilesize
624KB
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memory/3788-132-0x00000000058A0000-0x0000000005E44000-memory.dmpFilesize
5.6MB
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memory/3788-133-0x0000000005390000-0x0000000005422000-memory.dmpFilesize
584KB
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memory/3788-134-0x0000000005330000-0x000000000533A000-memory.dmpFilesize
40KB
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memory/3788-135-0x00000000055B0000-0x0000000005606000-memory.dmpFilesize
344KB