agenttesla | acc275d40a136f0bf0e2c25c249f81e1cd811e313d00037e4af03526b7dd8df4

General

Target
Purchase Order.exe
Size 468KB
Sample210924-n3grqaghck
SHA256 acc275d40a136f0bf0e2c25c249f81e1cd811e313d00037e4af03526b7dd8df4
MD5 19caf07b3f296be743aa5d4830d02326
SHA1 e82342515db7d678cc5e2ff72d668d64a6c825d0
SHA512 297cb91cc3fc06e2b1746a963454fc368af77172933247b72c94ac6646b2db9fe6b1bf2014f912c1b2eb2a40de6153fc57f32795df40b40e0fca07ee68123207
MD5 SHA1 SHA512

Score

10^/10

Family

Credentials

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2804-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2804-127-0x000000000043761E-mapping.dmp	family_agenttesla
behavioral2/memory/2804-132-0x0000000005270000-0x000000000576E000-memory.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\TmZaMAa = "C:\\Users\\Admin\\AppData\\Roaming\\TmZaMAa\\TmZaMAa.exe"	Purchase Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1828 set thread context of 2804	1828	Purchase Order.exe	72

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1828	Purchase Order.exe
Token: SeDebugPrivilege	2804	Purchase Order.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 2588	1828	Purchase Order.exe	70
PID 1828 wrote to memory of 2588	1828	Purchase Order.exe	70
PID 1828 wrote to memory of 2588	1828	Purchase Order.exe	70
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72
PID 1828 wrote to memory of 2804	1828	Purchase Order.exe	72

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SdklAcQsLzx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp225E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2588
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2804