agenttesla | fe200cf4827d467a2915295f0b092c7afedfc13dde1381a74bb884e2baceb44c

General

Target
DOC.exe
Size 756KB
Sample200717-qgadpc43ca
SHA256 fe200cf4827d467a2915295f0b092c7afedfc13dde1381a74bb884e2baceb44c
MD5 91d8c3dbdbe3db1041f438046e1bc0e0
SHA1 6bdc2ac56290abdc35be53cdc1e697166c203d81
SHA512 9b466c84d0c0815ead8c5691946a474daa9db3e823680acb9d0d189412b3e7dc10ecd6f1eb062637946bcef7ce1b54a1167d8c0f2abbd218c6bacb1155777e70
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 4 IoCs

resource	yara_rule
behavioral1/memory/1096-4-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/1096-5-0x0000000000446E1E-mapping.dmp	family_agenttesla
behavioral1/memory/1096-6-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/1096-7-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 316 set thread context of 1096	316	DOC.exe	26

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
1632	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

pid	Process
1952	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1096	RegSvcs.exe
1096	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1096	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 1632	316	DOC.exe	24
PID 316 wrote to memory of 1632	316	DOC.exe	24
PID 316 wrote to memory of 1632	316	DOC.exe	24
PID 316 wrote to memory of 1632	316	DOC.exe	24
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 316 wrote to memory of 1096	316	DOC.exe	26
PID 1096 wrote to memory of 1952	1096	RegSvcs.exe	30
PID 1096 wrote to memory of 1952	1096	RegSvcs.exe	30
PID 1096 wrote to memory of 1952	1096	RegSvcs.exe	30
PID 1096 wrote to memory of 1952	1096	RegSvcs.exe	30

C:\Users\Admin\AppData\Local\Temp\DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DOC.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cFIBIw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC81.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:1952