agenttesla | ff8feaa003c8f622d0888744ff9896bf2b7c9f5da33ec6448abbbea4d697a609

General

Target
New Order.exe
Size 888KB
Sample210921-ktap9sbfbl
SHA256 ff8feaa003c8f622d0888744ff9896bf2b7c9f5da33ec6448abbbea4d697a609
MD5 6d4bd40d14ddce0edd68155fc9357caf
SHA1 b17312687841da5f71e7493ff46eef0cff561c54
SHA512 b77bae629c0e96edcb674dcdc84683dc85a27f253bf76b989ee694720c39f94cabca9a1de4ab5ca63051a3fda11bd245c871cd5ea3f759f9113fe0c48bfaf37c
MD5 SHA1 SHA512

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.hiramills.com.pk
Port
587
Username
[email protected]
Password
xMFNAQ3p0Oub

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/1700-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1700-70-0x00000000004375EE-mapping.dmp	family_agenttesla
behavioral1/memory/1700-71-0x0000000000400000-0x000000000043C000-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\VideoBiosVersion	New Order.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	New Order.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

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	New Order.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	New Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 1700	1996	New Order.exe	30

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
1876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1996	New Order.exe
1700	New Order.exe
1700	New Order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	New Order.exe
Token: SeDebugPrivilege	1700	New Order.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1700	New Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1876	1996	New Order.exe	28
PID 1996 wrote to memory of 1876	1996	New Order.exe	28
PID 1996 wrote to memory of 1876	1996	New Order.exe	28
PID 1996 wrote to memory of 1876	1996	New Order.exe	28
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30
PID 1996 wrote to memory of 1700	1996	New Order.exe	30

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"C:\Users\Admin\AppData\Local\Temp\New 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 WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lLZiKNuCGpejr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC53.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1876
- C:\Users\Admin\AppData\Local\Temp\New Order.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1700