Analysis
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max time kernel
187s -
max time network
209s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
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submitted
08-12-2022 18:19
General
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Target
PO 0017709220.pdf (68KB).exe
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Size
871KB
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MD5
94370cac5c6a71ef3b1ac252d8c2d1f0
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SHA1
99e3a287c919446a51a29bb41b15e392381eb4d7
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SHA256
5fe027cf78cba3c3e99db784eff2511d0d98b0f651fb840098f4a2a3f6c7ad60
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SHA512
1a5a4123aae1036a29b20f559f1d0b78ff88fdceeb842106fdb27e34ff7e0a150f1e200ebd07bef56ba2b580b34eac4513e07719ab6ebc1482f9c7364ae3e431
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SSDEEP
24576:X8DsTl9mUzgCzfsWfJHDxtMcKQ1Qj2SoYQi3:XAsT3dJltb1Qj6Yf
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5988122207:AAF1_KgDENpI5X2i7Phd669ok2u6BhL3kK0/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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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 user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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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 5 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 0017709220.pdf (68KB).exe"C:\Users\Admin\AppData\Local\Temp\PO 0017709220.pdf (68KB).exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BATNhTK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BATNhTK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8587.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO 0017709220.pdf (68KB).exe"C:\Users\Admin\AppData\Local\Temp\PO 0017709220.pdf (68KB).exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8587.tmpFilesize
1KB
MD5e3431a0e5dd82ce8af4e2c3c78c2fe8c
SHA1f74906a5ae65a85fc8b4291b9948b098fd6ed9b2
SHA256ad0841c642cad0d0ed9c57b1286fadae2ff45c136391adaaab7dcc13cdac3fee
SHA512b06fc0c89a734f231c61984fd417cf2a5dc2bba52ad6cd01af289bfe57adf14aa42bee120a223be4872caae403505e5444581237bdfffb6d016b335e55ebdc97
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memory/768-149-0x00000000068E0000-0x0000000006930000-memory.dmpFilesize
320KB
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memory/768-145-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/768-144-0x0000000000000000-mapping.dmp
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memory/3268-138-0x0000000005EF0000-0x0000000005F56000-memory.dmpFilesize
408KB
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memory/3268-134-0x0000000004C40000-0x0000000004CD2000-memory.dmpFilesize
584KB
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memory/3268-132-0x0000000000180000-0x0000000000260000-memory.dmpFilesize
896KB
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memory/3268-133-0x0000000005110000-0x00000000056B4000-memory.dmpFilesize
5.6MB
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memory/3268-137-0x0000000005E50000-0x0000000005EEC000-memory.dmpFilesize
624KB
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memory/3268-136-0x0000000005040000-0x000000000504A000-memory.dmpFilesize
40KB
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memory/3268-135-0x0000000004D90000-0x0000000004E3A000-memory.dmpFilesize
680KB
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memory/4332-139-0x0000000000000000-mapping.dmp
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memory/4332-142-0x00000000051F0000-0x0000000005226000-memory.dmpFilesize
216KB
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memory/4332-146-0x0000000005520000-0x0000000005542000-memory.dmpFilesize
136KB
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memory/4332-147-0x0000000006020000-0x0000000006086000-memory.dmpFilesize
408KB
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memory/4332-148-0x00000000067F0000-0x000000000680E000-memory.dmpFilesize
120KB
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memory/4332-143-0x00000000058F0000-0x0000000005F18000-memory.dmpFilesize
6.2MB
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memory/4332-150-0x0000000006D40000-0x0000000006D72000-memory.dmpFilesize
200KB
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memory/4332-151-0x0000000070100000-0x000000007014C000-memory.dmpFilesize
304KB
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memory/4332-152-0x0000000006D20000-0x0000000006D3E000-memory.dmpFilesize
120KB
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memory/4332-153-0x00000000080C0000-0x000000000873A000-memory.dmpFilesize
6.5MB
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memory/4332-154-0x0000000007A80000-0x0000000007A9A000-memory.dmpFilesize
104KB
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memory/4332-155-0x0000000007AE0000-0x0000000007AEA000-memory.dmpFilesize
40KB
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memory/4376-140-0x0000000000000000-mapping.dmp