agenttesla | 096e367392216bef16b7bb081ec13edbf71a774b5f8de11fe22a15fed254f8c9

General

Target
VQiCue7HEz6VM3g.exe
Size 593KB
Sample200831-14bfct83d6
SHA256 096e367392216bef16b7bb081ec13edbf71a774b5f8de11fe22a15fed254f8c9
MD5 a99ce8dca56f302d6df6c8abcfc707bc
SHA1 57f84fc433737662a1edaf8675f3f28038347126
SHA512 e5796de19bd9c58c3c49794b1240f16af777308a47333ce8ec41e44ce28f7517c660a70e98f63c21ad7d5c2fb6a10eafb71c1172bea493cbcfe780fa432a8867
MD5 SHA1 SHA512

Score

10^/10

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

AgentTesla Payload 7 IoCs

keylogger stealer

resource	yara_rule
behavioral1/memory/476-8-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral1/memory/476-8-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral1/memory/476-9-0x000000000046146E-mapping.dmp	agent_tesla
behavioral1/memory/476-10-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral1/memory/476-10-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral1/memory/476-11-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla
behavioral1/memory/476-11-0x0000000000400000-0x0000000000466000-memory.dmp	agent_tesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	VQiCue7HEz6VM3g.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	VQiCue7HEz6VM3g.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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	VQiCue7HEz6VM3g.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	VQiCue7HEz6VM3g.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 476	1436	VQiCue7HEz6VM3g.exe	33

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
2008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	VQiCue7HEz6VM3g.exe
Token: SeDebugPrivilege	476	VQiCue7HEz6VM3g.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 2008	1436	VQiCue7HEz6VM3g.exe	29
PID 1436 wrote to memory of 2008	1436	VQiCue7HEz6VM3g.exe	29
PID 1436 wrote to memory of 2008	1436	VQiCue7HEz6VM3g.exe	29
PID 1436 wrote to memory of 2008	1436	VQiCue7HEz6VM3g.exe	29
PID 1436 wrote to memory of 1964	1436	VQiCue7HEz6VM3g.exe	31
PID 1436 wrote to memory of 1964	1436	VQiCue7HEz6VM3g.exe	31
PID 1436 wrote to memory of 1964	1436	VQiCue7HEz6VM3g.exe	31
PID 1436 wrote to memory of 1964	1436	VQiCue7HEz6VM3g.exe	31
PID 1436 wrote to memory of 1972	1436	VQiCue7HEz6VM3g.exe	32
PID 1436 wrote to memory of 1972	1436	VQiCue7HEz6VM3g.exe	32
PID 1436 wrote to memory of 1972	1436	VQiCue7HEz6VM3g.exe	32
PID 1436 wrote to memory of 1972	1436	VQiCue7HEz6VM3g.exe	32
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33
PID 1436 wrote to memory of 476	1436	VQiCue7HEz6VM3g.exe	33

C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
"C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qRkTaxBqiU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F70.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2008
- C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
  "{path}"
  2⤵
  PID:1964
- C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
  "{path}"
  2⤵
  PID:1972
- C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:476