agenttesla | 561216f97efc76eeb6600d7faf1e8942192bdb5b259998da4318882151c24dc3

General

Target
quotes.exe
Size 428KB
Sample210527-eylcbex1sa
SHA256 561216f97efc76eeb6600d7faf1e8942192bdb5b259998da4318882151c24dc3
MD5 27691275d1d8d91df8feaf4cd0e74913
SHA1 7d138d52348eeaa8fc3fd1912fdcd5cddd44948f
SHA512 4df50dc1f8c47d729e754abe48e34b97df713b8970a9042a07b454752808ca53d11e449226d9dad622326b0248633728eac001d8e17560885db370018befd861
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
behavioral1/memory/760-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/760-68-0x000000000043764E-mapping.dmp	family_agenttesla
behavioral1/memory/760-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	quotes.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 788 set thread context of 760	788	quotes.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.

Scheduled Task

pid	Process
1632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	788	quotes.exe
Token: SeDebugPrivilege	760	quotes.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
760	quotes.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 788 wrote to memory of 1632	788	quotes.exe	29
PID 788 wrote to memory of 1632	788	quotes.exe	29
PID 788 wrote to memory of 1632	788	quotes.exe	29
PID 788 wrote to memory of 1632	788	quotes.exe	29
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31
PID 788 wrote to memory of 760	788	quotes.exe	31

C:\Users\Admin\AppData\Local\Temp\quotes.exe
"C:\Users\Admin\AppData\Local\Temp\quotes.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:788
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OieTcUSOzvycyy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C77.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1632
- C:\Users\Admin\AppData\Local\Temp\quotes.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:760