Analysis
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max time kernel
154s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 12:11
General
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Target
Lochab Statement.exe
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Size
419KB
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MD5
63268cc19d18110f40d4c9fab8139e64
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SHA1
9f5b3933b402d07778ced6222e679213b3f02884
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SHA256
cb66e8b2b867a469d59012b17c0c81be2900a9731529eb1d51073cbb92b5bb84
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SHA512
dab348d999f24377a53316c2bcacac02733d19cbd68abea4632d92c5fce90b1d3c0813390e96458e848b4d28a6e903c25937457fd9c67d9cefab6ce9811687a2
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.chirophysic.co.ke - Port:
587 - Username:
simalogs@chirophysic.co.ke - Password:
&qNJfDk}m&j}
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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Drops file in Drivers directory 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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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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Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 14 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\Lochab Statement.exe"C:\Users\Admin\AppData\Local\Temp\Lochab Statement.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mAqXzIFztN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp395F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Lochab Statement.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp395F.tmpFilesize
1KB
MD5662aa714935d1dd9e999f329c3f60261
SHA152186640f858673ba51ab61dd915e03dbef186c6
SHA256ffe748d776a762fd992a9ec2619a2dabc77ab28e18039f20b33f0d728e9b315d
SHA512d53aa4ef8d83bc4b2f3a96067502ad83316bad51dd8dce9d68d2315528691a8bb2a6f47083ff890d444746c9d752ac331eaa46c1f7bdd4b09d620bee2c73a164
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memory/792-135-0x0000000000000000-mapping.dmp
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memory/1356-137-0x0000000000000000-mapping.dmp
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memory/1356-138-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1356-139-0x0000000005CB0000-0x0000000005D16000-memory.dmpFilesize
408KB
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memory/1356-140-0x0000000006270000-0x00000000062C0000-memory.dmpFilesize
320KB
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memory/1356-142-0x0000000006550000-0x000000000655A000-memory.dmpFilesize
40KB
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memory/3144-141-0x0000000000000000-mapping.dmp
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memory/3840-131-0x0000000000320000-0x0000000000390000-memory.dmpFilesize
448KB
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memory/3840-132-0x0000000004D50000-0x0000000004DEC000-memory.dmpFilesize
624KB
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memory/3840-133-0x0000000004DF0000-0x0000000004E82000-memory.dmpFilesize
584KB
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memory/3840-134-0x0000000005C20000-0x00000000061C4000-memory.dmpFilesize
5.6MB