Analysis
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max time kernel
131s -
max time network
55s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
27-07-2021 21:03
Static task
static1
Behavioral task
behavioral1
Sample
PR4007-PO161.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
PR4007-PO161.exe
Resource
win10v20210410
General
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Target
PR4007-PO161.exe
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Size
829KB
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MD5
e70025359ef960acb7a37572b0641ed2
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SHA1
a315ab77f2519de210727579b8cf98338144f105
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SHA256
650032961db3668f23cabc3c999e1efddae68bd77a9751de212d8ed9b719821e
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SHA512
7f7b91c83a51a95731b112cbe29a682fde5df678155ec66186e87ac67200655dc6bf97c3d37026e0e4b3b26b4a265e366fafbb511ae38650c5b2645c71dca675
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.afciphil.com.ph - Port:
587 - Username:
importdox_jberedo@afciphil.com.ph - Password:
r35eCaR@t4
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1836-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1836-68-0x000000000043762E-mapping.dmp family_agenttesla behavioral1/memory/1836-69-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PR4007-PO161.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PR4007-PO161.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PR4007-PO161.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" PR4007-PO161.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PR4007-PO161.exedescription pid process target process PID 292 set thread context of 1836 292 PR4007-PO161.exe PR4007-PO161.exe -
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
Processes:
PR4007-PO161.exePR4007-PO161.exepid process 292 PR4007-PO161.exe 1836 PR4007-PO161.exe 1836 PR4007-PO161.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PR4007-PO161.exePR4007-PO161.exedescription pid process Token: SeDebugPrivilege 292 PR4007-PO161.exe Token: SeDebugPrivilege 1836 PR4007-PO161.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PR4007-PO161.exepid process 1836 PR4007-PO161.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PR4007-PO161.exedescription pid process target process PID 292 wrote to memory of 944 292 PR4007-PO161.exe schtasks.exe PID 292 wrote to memory of 944 292 PR4007-PO161.exe schtasks.exe PID 292 wrote to memory of 944 292 PR4007-PO161.exe schtasks.exe PID 292 wrote to memory of 944 292 PR4007-PO161.exe schtasks.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe PID 292 wrote to memory of 1836 292 PR4007-PO161.exe PR4007-PO161.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PR4007-PO161.exe"C:\Users\Admin\AppData\Local\Temp\PR4007-PO161.exe"1⤵
- 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\LNFrmOl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80C4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PR4007-PO161.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp80C4.tmpMD5
1e678b557966b3d40c0aca1b2a1cd331
SHA1480519abf3ba1408751ef2d132fc2b1c438bbbd5
SHA25662f039ecc7daa4ec656a0ca93350211e137a5370fcf236eb659342bc856dc327
SHA512625762eeb93d1ff853d458b0ff65b80ec053ecddd25073b34a0562a6d2f2f340261fc4e127ef871d930f20e676bf91d354c5e5541db68bee9529ece5d09757b8
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memory/292-59-0x0000000000130000-0x0000000000131000-memory.dmpFilesize
4KB
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memory/292-61-0x00000000048B0000-0x00000000048B1000-memory.dmpFilesize
4KB
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memory/292-62-0x00000000005F0000-0x00000000005F2000-memory.dmpFilesize
8KB
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memory/292-63-0x0000000007C70000-0x0000000007CF3000-memory.dmpFilesize
524KB
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memory/292-64-0x00000000040E0000-0x0000000004124000-memory.dmpFilesize
272KB
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memory/944-65-0x0000000000000000-mapping.dmp
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memory/1836-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1836-68-0x000000000043762E-mapping.dmp
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memory/1836-69-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1836-71-0x0000000004C50000-0x0000000004C51000-memory.dmpFilesize
4KB
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memory/1836-72-0x0000000004C51000-0x0000000004C52000-memory.dmpFilesize
4KB