Analysis
- max time kernel
121s - max time network
11s - platform
windows7_x64 - resource
win7v20201028 - submitted
10/12/2020, 20:27
Static task
static1
Behavioral task
behavioral1
Sample
P.O.DECEMBER.2020.PDF.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
P.O.DECEMBER.2020.PDF.exe
Resource
win10v20201028
General
- Target P.O.DECEMBER.2020.PDF.exe
- Size 727KB
- Sample201210-7frpg644hn
- SHA256 9fbc79d39607fa75a214552ebb132db779426add0ff8fa563cc33943e99cef65
- MD5 cc18a2f1248cc1c444ff1e655601d60b
- SHA1 7718d329ea54b3a53b081ea618a0d185484718f6
- SHA512 f85b72afe36252f6b4280176fd301b82d1d137c11b0fb2024305521f8096121300583bb885d6b450d81e5387c69025d496d6b9015543383cb69a6ab913015cb2
- MD5 SHA1 SHA512
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
web2.changeip.com
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Port
587
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Username
-
Password
2*xaR!aKyovu
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1732-93-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1732-94-0x0000000000454D7E-mapping.dmp family_agenttesla behavioral1/memory/1732-96-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1732-98-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1580 set thread context of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1996 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1580 P.O.DECEMBER.2020.PDF.exe 1580 P.O.DECEMBER.2020.PDF.exe 1732 P.O.DECEMBER.2020.PDF.exe 1732 P.O.DECEMBER.2020.PDF.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1580 P.O.DECEMBER.2020.PDF.exe Token: SeDebugPrivilege 1732 P.O.DECEMBER.2020.PDF.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1732 P.O.DECEMBER.2020.PDF.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1580 wrote to memory of 1996 1580 P.O.DECEMBER.2020.PDF.exe 29 PID 1580 wrote to memory of 1996 1580 P.O.DECEMBER.2020.PDF.exe 29 PID 1580 wrote to memory of 1996 1580 P.O.DECEMBER.2020.PDF.exe 29 PID 1580 wrote to memory of 1996 1580 P.O.DECEMBER.2020.PDF.exe 29 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31 PID 1580 wrote to memory of 1732 1580 P.O.DECEMBER.2020.PDF.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\P.O.DECEMBER.2020.PDF.exe"C:\Users\Admin\AppData\Local\Temp\P.O.DECEMBER.2020.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1580 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JPhFviOYw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA5D.tmp"2⤵
- Creates scheduled task(s)
PID:1996
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C:\Users\Admin\AppData\Local\Temp\P.O.DECEMBER.2020.PDF.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1732
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