agenttesla | c1a5a50629d48e6259bd63ebc5e9d31d6b076b30edc1b3bd138e10fcc03a29c8

General

Target
Order.exe
Size 733KB
Sample201109-eql5lsypsx
SHA256 c1a5a50629d48e6259bd63ebc5e9d31d6b076b30edc1b3bd138e10fcc03a29c8
MD5 f98e4ca30b7509d7e58dc1f1c892bca3
SHA1 ead5e654675beecf472895aaf781bea0337689ff
SHA512 7a5312aa43dea2b5b167080d73c98a029a90677bce4289ea8c88d12523e113388596c7eeebde13b7d36b486997110eddeb7e7d30a2a974f8296da52b8e376742
MD5 SHA1 SHA512

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
chosen@@@123

Signatures

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/432-25-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/432-27-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/432-26-0x000000000044B99E-mapping.dmp	family_agenttesla
behavioral1/memory/432-28-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

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

T1012

System Information Discovery

T1082

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

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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1912 set thread context of 432	1912	Order.exe	33

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
1780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1912	Order.exe
432	Order.exe
432	Order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	Order.exe
Token: SeDebugPrivilege	432	Order.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1912	Order.exe
1912	Order.exe
432	Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 1780	1912	Order.exe	31
PID 1912 wrote to memory of 1780	1912	Order.exe	31
PID 1912 wrote to memory of 1780	1912	Order.exe	31
PID 1912 wrote to memory of 1780	1912	Order.exe	31
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33
PID 1912 wrote to memory of 432	1912	Order.exe	33

C:\Users\Admin\AppData\Local\Temp\Order.exe
"C:\Users\Admin\AppData\Local\Temp\Order.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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QPcnNesmP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2B83.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1780
- C:\Users\Admin\AppData\Local\Temp\Order.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:432