agenttesla | 4b8e6c2dd96fd88330bf2008d88e99301e98538f4e6848fe4b8c97823bcbbe8b

General

Target
IMG62790-KGY pdf.img.exe
Size 764KB
Sample200930-peqlfbt592
SHA256 4b8e6c2dd96fd88330bf2008d88e99301e98538f4e6848fe4b8c97823bcbbe8b
MD5 d23d9752c6c7da7e117fa7e2ba9f05d3
SHA1 2e180ee8d13a28157884acdee0f721642c164e5a
SHA512 1c588de2840780afbb82a19ca811058707854b9663ca7a74923dcd987d0074c236087b5abf6754ddfbc8c6c5a2221116fb02150b3c5a6fd79c933f034109ccf5
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 2 IoCs

resource	yara_rule
behavioral2/memory/3560-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3560-13-0x00000000004374BE-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	IMG62790-KGY pdf.img.exe

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

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

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

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-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WCPCe\\WCPCe.exe"	IMG62790-KGY pdf.img.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3816 set thread context of 3560	3816	IMG62790-KGY pdf.img.exe	77

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
3184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3816	IMG62790-KGY pdf.img.exe
Token: SeDebugPrivilege	3560	IMG62790-KGY pdf.img.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 3184	3816	IMG62790-KGY pdf.img.exe	75
PID 3816 wrote to memory of 3184	3816	IMG62790-KGY pdf.img.exe	75
PID 3816 wrote to memory of 3184	3816	IMG62790-KGY pdf.img.exe	75
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77
PID 3816 wrote to memory of 3560	3816	IMG62790-KGY pdf.img.exe	77

C:\Users\Admin\AppData\Local\Temp\IMG62790-KGY pdf.img.exe
"C:\Users\Admin\AppData\Local\Temp\IMG62790-KGY pdf.img.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZoAZWhlQYiKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp416F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3184
- C:\Users\Admin\AppData\Local\Temp\IMG62790-KGY pdf.img.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3560