Analysis
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max time kernel
151s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-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 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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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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 7 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 17 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\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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\tmp28C5.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⤵
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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⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD59a53c7c8c37d785b900fc41d512793a5
SHA1a69046e3c72745486ee5b4105978fbef9c1bc9a9
SHA256025542a587adb60c35e501274a694948ffa7f4bd8b99e4644765fa3d8feb8f0d
SHA512d53ba9c901d04d2e983ee08b36dfd0bed8ff85b55c2b823727dd5070e47683fd018c303371f3867bae2feab5f3d44ea1dba584b37be5de37a85e1808e0a41dd5
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Filesize
5.6MB
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Filesize
584KB
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Filesize
680KB
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Filesize
40KB
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Filesize
624KB
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Filesize
408KB
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Filesize
896KB
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Filesize
320KB
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Filesize
224KB
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Filesize
6.5MB
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Filesize
32KB
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Filesize
136KB
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Filesize
408KB
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Filesize
120KB
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Filesize
200KB
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Filesize
304KB
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Filesize
120KB
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Filesize
6.2MB
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Filesize
104KB
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Filesize
40KB
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Filesize
216KB
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Filesize
600KB
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Filesize
56KB
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Filesize
104KB
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