agenttesla | 168caa44cabb1a09709b9cb793a765d5f4f12d509e348419119d60e918c5a394

General

Target
yFLGU0PnHsUUnOD.exe
Size 882KB
Sample210713-13dpsabkjx
SHA256 c6cacd1d2bfb210318a62cabce8045f5735cd9a0e58c3aea8d3ec2174f6d7abb
MD5 3bd65ecd3e21039ad9921e90a849bb7b
SHA1 a86795c094671072212f6eaf1e68f23b93e30c5b
SHA512 d8a6125576abf2bdeb681d2fc97663689bab5cb1272af2cfe16a71d4610fce83dd9a8698007501a39acd5e6a0d088def721b4662c83bf976decd3fe61bc8b43c
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.speedtranslogistics.com
Port
587
Username
[email protected]
Password
&q*L9+U[o}&o

Signatures

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
behavioral1/memory/1188-69-0x000000000043763E-mapping.dmp	family_agenttesla
behavioral1/memory/1188-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1188-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	yFLGU0PnHsUUnOD.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	yFLGU0PnHsUUnOD.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 1188	1644	yFLGU0PnHsUUnOD.exe	31

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.

persistence

Scheduled Task

T1053

pid	Process
1312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1188	yFLGU0PnHsUUnOD.exe
1188	yFLGU0PnHsUUnOD.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	yFLGU0PnHsUUnOD.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1312	1644	yFLGU0PnHsUUnOD.exe	29
PID 1644 wrote to memory of 1312	1644	yFLGU0PnHsUUnOD.exe	29
PID 1644 wrote to memory of 1312	1644	yFLGU0PnHsUUnOD.exe	29
PID 1644 wrote to memory of 1312	1644	yFLGU0PnHsUUnOD.exe	29
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31
PID 1644 wrote to memory of 1188	1644	yFLGU0PnHsUUnOD.exe	31

C:\Users\Admin\AppData\Local\Temp\yFLGU0PnHsUUnOD.exe
"C:\Users\Admin\AppData\Local\Temp\yFLGU0PnHsUUnOD.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CFEVNjCgsxv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39B6.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1312
- C:\Users\Admin\AppData\Local\Temp\yFLGU0PnHsUUnOD.exe
  "C:\Users\Admin\AppData\Local\Temp\yFLGU0PnHsUUnOD.exe"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1188-68-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1188-70-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1188-72-0x0000000004950000-0x0000000004951000-memory.dmp

Download

memory/1644-60-0x00000000010A0000-0x00000000010A1000-memory.dmp

Download

memory/1644-62-0x0000000000430000-0x0000000000431000-memory.dmp

Download

memory/1644-63-0x0000000000470000-0x0000000000480000-memory.dmp

Download

memory/1644-64-0x0000000005F30000-0x0000000005FD2000-memory.dmp

Download

memory/1644-65-0x0000000004F00000-0x0000000004F5E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads