agenttesla | c0cbab8b9504e2575456d0f902b264123362665031999a3f780c2a5c2f0b9512

General

Target

PO-3-07-23.exe
Size

901KB
MD5

fcbd587b894d3d1508268b67c02d220f
SHA1

432a697f05de00a09d5d237dec6e0aa49cea03f8
SHA256

c0cbab8b9504e2575456d0f902b264123362665031999a3f780c2a5c2f0b9512
SHA512

6d9dfe62c73816754f8caada2c3e980a6900ce100afa0005c2cd9e30ec181920e80abd3dea9bc4956ba725b103efbed3469d3dc5b149bdb86dc2b30af6b83450
SSDEEP

12288:ke3ygxIyjPpBSqGiyol3PQJih+ZKdGUFRP0TVfXVZ67cNNBD9s9Etl0vjC44dBjj:ke3VTpBS3UZEs5sTRbBDsQD

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.coldiab.cl
Port:
587
Username:
[email protected]
Password:
C0ldi4b2021npsw.
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-3-07-23.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-3-07-23.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-3-07-23.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
61	api.ipify.org
62	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4364 set thread context of 2116	4364	PO-3-07-23.exe	98

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2116	PO-3-07-23.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2116	PO-3-07-23.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98
PID 4364 wrote to memory of 2116	4364	PO-3-07-23.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-3-07-23.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO-3-07-23.exe

C:\Users\Admin\AppData\Local\Temp\PO-3-07-23.exe
"C:\Users\Admin\AppData\Local\Temp\PO-3-07-23.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4364
- C:\Users\Admin\AppData\Local\Temp\PO-3-07-23.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-3-07-23.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

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\Microsoft\CLR_v4.0_32\UsageLogs\PO-3-07-23.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2116-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2116-147-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/2116-146-0x00000000076C0000-0x0000000007882000-memory.dmp

Filesize
1.8MB

Download
memory/2116-145-0x00000000074A0000-0x00000000074F0000-memory.dmp

Filesize
320KB

Download
memory/2116-144-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/2116-143-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/4364-136-0x0000000005A70000-0x0000000005A7A000-memory.dmp

Filesize
40KB

Download
memory/4364-139-0x00000000086A0000-0x000000000873C000-memory.dmp

Filesize
624KB

Download
memory/4364-138-0x0000000005A10000-0x0000000005A20000-memory.dmp

Filesize
64KB

Download
memory/4364-137-0x0000000005A10000-0x0000000005A20000-memory.dmp

Filesize
64KB

Download
memory/4364-133-0x0000000000FC0000-0x00000000010A8000-memory.dmp

Filesize
928KB

Download
memory/4364-135-0x0000000005AA0000-0x0000000005B32000-memory.dmp

Filesize
584KB

Download
memory/4364-134-0x0000000005FB0000-0x0000000006554000-memory.dmp

Filesize
5.6MB

Download

Analysis

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