agenttesla | 14b47ce8f87394241ccbbdb061cd17f66643aff2712cb4824fa77a70ee1a3aeb

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2022, 23:40

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General

Target
paymentslip.exe
Size 6KB
Sample220821-3nvglaafg3
SHA256 14b47ce8f87394241ccbbdb061cd17f66643aff2712cb4824fa77a70ee1a3aeb
MD5 a523537585b5f5f233a4f41b806a9aa8
SHA1 2a98b554a4922087ebcf8886be2155d61eeebf98
SHA512 ebb98ecb220359fea44d1459045ff3aaa18574c02d9222f69508e54ec9c7077559b316e48be6b4a332a6c9ef330721d41f4f60dc372e38ce6fb988bdfd6c3c31
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.cimarcochin.com
Port
587
Username
[email protected]
Password
hrofficer@123

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	paymentslip.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hrrwh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Mcepuby\\Hrrwh.exe\""	paymentslip.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xnfLZ = "C:\\Users\\Admin\\AppData\\Roaming\\xnfLZ\\xnfLZ.exe"	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3504 set thread context of 4308	3504	paymentslip.exe	87

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4560	powershell.exe
4560	powershell.exe
4308	InstallUtil.exe
4308	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	paymentslip.exe
Token: SeDebugPrivilege	4560	powershell.exe
Token: SeDebugPrivilege	4308	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 4560	3504	paymentslip.exe	83
PID 3504 wrote to memory of 4560	3504	paymentslip.exe	83
PID 3504 wrote to memory of 4560	3504	paymentslip.exe	83
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87
PID 3504 wrote to memory of 4308	3504	paymentslip.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\paymentslip.exe
"C:\Users\Admin\AppData\Local\Temp\paymentslip.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4560
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4308

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3504-133-0x0000000006130000-0x0000000006180000-memory.dmp

Download

memory/3504-134-0x0000000006240000-0x00000000062F2000-memory.dmp

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memory/3504-135-0x00000000068B0000-0x0000000006E54000-memory.dmp

Download

memory/3504-136-0x00000000063A0000-0x0000000006432000-memory.dmp

Download

memory/3504-137-0x0000000006300000-0x0000000006322000-memory.dmp

Download

memory/3504-132-0x0000000000AE0000-0x0000000000AE8000-memory.dmp

Download

memory/4308-149-0x0000000006AD0000-0x0000000006ADA000-memory.dmp

Download

memory/4308-148-0x0000000005660000-0x00000000056FC000-memory.dmp

Download

memory/4308-147-0x0000000000400000-0x000000000043A000-memory.dmp

Download

memory/4560-140-0x0000000005060000-0x0000000005688000-memory.dmp

Download

memory/4560-143-0x0000000005DA0000-0x0000000005DBE000-memory.dmp

Download

memory/4560-144-0x00000000075F0000-0x0000000007C6A000-memory.dmp

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memory/4560-145-0x00000000062A0000-0x00000000062BA000-memory.dmp

Download

memory/4560-142-0x0000000005770000-0x00000000057D6000-memory.dmp

Download

memory/4560-141-0x0000000005700000-0x0000000005766000-memory.dmp

Download

memory/4560-139-0x00000000027A0000-0x00000000027D6000-memory.dmp

Download