agenttesla | 71c0614a096ad6fe9b4022f8c829467762a05655c769797f9649e254f1531b53

General

Target

PO_CIQ11485900.js
Size

381KB
MD5

26a330f2d227cabe5d33dc5c5c2c5430
SHA1

3f8504c75dda59e419ee563a36deffc7f4a87889
SHA256

71c0614a096ad6fe9b4022f8c829467762a05655c769797f9649e254f1531b53
SHA512

c003642fc898b95454fa279c0177ac8df34a4d7be9d7688eb335b3ef9d1455a62c882eae224429713bf2d45c18d4a52d4033c3daa11ed1222767b08d04ed3ba5
SSDEEP

6144:A3IG6rAFpGR4r4A/TWW73xdxKhzdVkz9NUOW6baLbbe4pMuh:AIrAfwu4A/S+xdxfrU9bR

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
%2B
Port:
21
Username:
application/x-www-form-urlencoded
Password:
image/jpg

C2

p=

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1480	jncj4.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jncj4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jncj4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jncj4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	jncj4.exe
1480	jncj4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	jncj4.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1952	900	wscript.exe	27
PID 900 wrote to memory of 1952	900	wscript.exe	27
PID 900 wrote to memory of 1952	900	wscript.exe	27
PID 900 wrote to memory of 1480	900	wscript.exe	28
PID 900 wrote to memory of 1480	900	wscript.exe	28
PID 900 wrote to memory of 1480	900	wscript.exe	28
PID 900 wrote to memory of 1480	900	wscript.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jncj4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jncj4.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO_CIQ11485900.js
1⤵
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\NWYGqtQQxH.js"
  2⤵
  PID:1952
- C:\Users\Admin\AppData\Local\Temp\jncj4.exe
  "C:\Users\Admin\AppData\Local\Temp\jncj4.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jncj4.exe

Filesize
209KB

MD5
6647991a50f3159b6d38f6a992a9ba34

SHA1
8c2a431cd014ae113e0792f3cd04d0451c3d933a

SHA256
1c39e846a626c770e3ebcc97397271407d7f7f619c6d1b4cb55df63222165729

SHA512
49fd8580186ee246c2ac7e8e7bc2dd81892fb26e34f623b93e86b19c658c7797ecb0c497e83797abf410e7255a39cfe5cd7989a236aefd6866e258e4a1ae53fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\jncj4.exe

Filesize
209KB

MD5
6647991a50f3159b6d38f6a992a9ba34

SHA1
8c2a431cd014ae113e0792f3cd04d0451c3d933a

SHA256
1c39e846a626c770e3ebcc97397271407d7f7f619c6d1b4cb55df63222165729

SHA512
49fd8580186ee246c2ac7e8e7bc2dd81892fb26e34f623b93e86b19c658c7797ecb0c497e83797abf410e7255a39cfe5cd7989a236aefd6866e258e4a1ae53fc

Download Submit
C:\Users\Admin\AppData\Roaming\NWYGqtQQxH.js

Filesize
2KB

MD5
dafd2a6b835f404afd6b7ca0b8ae18d9

SHA1
2edaf274a1e27a6767b217f5e618eac1eac26509

SHA256
ffc555408f652687d48007f27ff07bc13681a9a5f0770f9b4936246b35f4cfab

SHA512
a1ba5cab35d99a55638fa4f407ef114a553753bc77aeceaa43dce80ba16f6148c39acf1c860ca4380f975125415245cf1298e59b43cf4dcaf0db47e19cc0a307

Download Submit
memory/900-54-0x000007FEFBD81000-0x000007FEFBD83000-memory.dmp

Filesize
8KB

Download
memory/1480-60-0x0000000000D60000-0x0000000000D9A000-memory.dmp

Filesize
232KB

Download
memory/1480-61-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download

Analysis

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