agenttesla | 8d82945bd5782a593aa632fdb3fe3b651893e434545b8c22e4576b3a2a0248d8

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 20:01

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General

Target

PURCHASE ORDER.exe
Size

551KB
MD5

0a1689698e15f2d5a7779a850b46217b
SHA1

7aeaced0fde2314490aa1c40025d4c10a60efcce
SHA256

789299ea329d9ab7fcb7043cf50dd4321ae3878c7f8eeb3136b5ed04ce2626e0
SHA512

4fb7c1317b8ea4a484ab8b8e5b84a2673734f75765af55dda6fd032be21f696a69816b15f13569dd3957897c874a55eeae01ddc09ee5a9f2839cc7e3c9354350
SSDEEP

12288:NP7r9r/+ppppppppppppppppppppppppppppp0YJwjyHyBK/LWCNyTrz9h74:N1MbTL/wvLU

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

AgentTesla payload 5 IoCs

Processes:

resource	yara_rule
behavioral7/memory/1716-12-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral7/memory/1716-15-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral7/memory/1716-16-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral7/memory/1716-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral7/memory/1716-19-0x0000000001F00000-0x0000000001F3C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

vxrlhg.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts vxrlhg.exe
Executes dropped EXE 2 IoCs

Processes:

vxrlhg.exevxrlhg.exe

pid process

1444 vxrlhg.exe
1716 vxrlhg.exe
Loads dropped DLL 2 IoCs

Processes:

PURCHASE ORDER.exevxrlhg.exe

pid process

2372 PURCHASE ORDER.exe
1444 vxrlhg.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

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

pid	process
1444	vxrlhg.exe
1716	vxrlhg.exe

pid	process
2372	PURCHASE ORDER.exe
1444	vxrlhg.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

vxrlhg.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vxrlhg.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vxrlhg.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vxrlhg.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

vxrlhg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\jySHQG = "C:\\Users\\Admin\\AppData\\Roaming\\jySHQG\\jySHQG.exe"	vxrlhg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

vxrlhg.exe

description pid process target process

PID 1444 set thread context of 1716 1444 vxrlhg.exe vxrlhg.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 1444 set thread context of 1716	1444	vxrlhg.exe	vxrlhg.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

PURCHASE ORDER.exevxrlhg.exevxrlhg.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PURCHASE ORDER.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vxrlhg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vxrlhg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vxrlhg.exe

pid process

1716 vxrlhg.exe
1716 vxrlhg.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

vxrlhg.exe

description pid process

Token: SeDebugPrivilege 1716 vxrlhg.exe

pid	process
1716	vxrlhg.exe
1716	vxrlhg.exe

description	pid	process
Token: SeDebugPrivilege	1716	vxrlhg.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PURCHASE ORDER.exevxrlhg.exe

description	pid	process	target process
PID 2372 wrote to memory of 1444	2372	PURCHASE ORDER.exe	vxrlhg.exe
PID 2372 wrote to memory of 1444	2372	PURCHASE ORDER.exe	vxrlhg.exe
PID 2372 wrote to memory of 1444	2372	PURCHASE ORDER.exe	vxrlhg.exe
PID 2372 wrote to memory of 1444	2372	PURCHASE ORDER.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe
PID 1444 wrote to memory of 1716	1444	vxrlhg.exe	vxrlhg.exe

outlook_office_path 1 IoCs

Processes:

vxrlhg.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vxrlhg.exe

outlook_win_path 1 IoCs

Processes:

vxrlhg.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vxrlhg.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\vxrlhg.exe
  C:\Users\Admin\AppData\Local\Temp\vxrlhg.exe C:\Users\Admin\AppData\Local\Temp\tjzfybzskq
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Users\Admin\AppData\Local\Temp\vxrlhg.exe
    C:\Users\Admin\AppData\Local\Temp\vxrlhg.exe C:\Users\Admin\AppData\Local\Temp\tjzfybzskq
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\et3cra8zhyjmrm2jktsg

Filesize
285KB

MD5
93204c274660dc48195abcb69f9feb98

SHA1
aec1f57e2b5d13c2e890a9a85779690d20ac5eef

SHA256
3a7051d9961b5ebd0c7f29b989165de72bc6c786f82f0038e89905596f790c85

SHA512
42c42e92e1445ab965711a167a8fa0ff616df6fdf0142b4798cdf03ec0ea5aa3b4af1c29d84d5834afa9fb1ded611c3380042fb08625a9ef45d51e1100c6b606

Download Submit
C:\Users\Admin\AppData\Local\Temp\tjzfybzskq

Filesize
4KB

MD5
41e93b996c8af83bf3d4b728ac7df71a

SHA1
3a143f132d7fc9c97b872fdceb30531b59af5ead

SHA256
f42e50d794d6f6ffae8c14af097bc050091f435603a6b236b986d9b8d7e6a4b6

SHA512
4a19306838dbcd51ac6eb2d4d2625769834dc2fc0f297949f5b7467d5f32d54e4c81433cb2d39e141a644c767bf6c06bc7ed2ab5396256cf8c4e4b1ad92b1e1d

Download Submit
\Users\Admin\AppData\Local\Temp\vxrlhg.exe

Filesize
170KB

MD5
80fee08628f07e4a7b845cc50733dacc

SHA1
01293924c19486df0c778f367bd91570d2a8fe23

SHA256
1e636514dc1362a291840f1b2752c61c94914061296df098b176956681f14d77

SHA512
177df61cb33e7fb15b2e9226006871265ea729ca8a2f7ad6f36c6372f6d43171d05bc7821a5bc09e5e215f328414fb0f0e3ecaa0cd39ec5cd970f8515a93e5e7

Download Submit
memory/1444-9-0x0000000000200000-0x0000000000202000-memory.dmp

Filesize
8KB

Download
memory/1716-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-15-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-16-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-19-0x0000000001F00000-0x0000000001F3C000-memory.dmp

Filesize
240KB

Download