agenttesla | 893870940f0b3f56d46f71effcd3cc731607154214f1ba956f54f50b5a4134dd

General

Target

cb1da5d39bfc177d4ae22ec62737c655.exe
Size

640KB
MD5

cb1da5d39bfc177d4ae22ec62737c655
SHA1

3d914005d219d311a713a71d90e3060b8f187025
SHA256

893870940f0b3f56d46f71effcd3cc731607154214f1ba956f54f50b5a4134dd
SHA512

c3967ad3e81e92d5e5fb37d6be2c6dd359850844461dd54cbb9a6182d7c9da9ca297086f6d3157652d66ab3918b8d5c40f19ace8009ccaf0317a563ab9da05be
SSDEEP

12288:K2N8jiZ4zypIPs6tPplTY6RhKuX/MiJ3PctxhYXbyrBJ/1P+SIW7InGD6VWx6Axl:K2N8jiZ4zypIPs6JTDE6EiJkGXerB1NH

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1105328307010015232/y3JHG4bp0jeynHE4DQgvB8OX8QijYxrk2CH91SY0HvNfeBptAktLBqo7Ix-7GllXk9Gz

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-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cb1da5d39bfc177d4ae22ec62737c655.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cb1da5d39bfc177d4ae22ec62737c655.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cb1da5d39bfc177d4ae22ec62737c655.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
32	api.ipify.org
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4424 set thread context of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	cb1da5d39bfc177d4ae22ec62737c655.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1172	cb1da5d39bfc177d4ae22ec62737c655.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92
PID 4424 wrote to memory of 1172	4424	cb1da5d39bfc177d4ae22ec62737c655.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cb1da5d39bfc177d4ae22ec62737c655.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cb1da5d39bfc177d4ae22ec62737c655.exe

C:\Users\Admin\AppData\Local\Temp\cb1da5d39bfc177d4ae22ec62737c655.exe
"C:\Users\Admin\AppData\Local\Temp\cb1da5d39bfc177d4ae22ec62737c655.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Users\Admin\AppData\Local\Temp\cb1da5d39bfc177d4ae22ec62737c655.exe
  "C:\Users\Admin\AppData\Local\Temp\cb1da5d39bfc177d4ae22ec62737c655.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1172

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\cb1da5d39bfc177d4ae22ec62737c655.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1172-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1172-147-0x0000000005890000-0x00000000058A0000-memory.dmp

Filesize
64KB

Download
memory/1172-146-0x0000000007610000-0x00000000077D2000-memory.dmp

Filesize
1.8MB

Download
memory/1172-145-0x00000000073F0000-0x0000000007440000-memory.dmp

Filesize
320KB

Download
memory/1172-144-0x0000000005890000-0x00000000058A0000-memory.dmp

Filesize
64KB

Download
memory/1172-143-0x00000000058A0000-0x0000000005906000-memory.dmp

Filesize
408KB

Download
memory/4424-136-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/4424-139-0x00000000067E0000-0x000000000687C000-memory.dmp

Filesize
624KB

Download
memory/4424-138-0x0000000004E00000-0x0000000004E10000-memory.dmp

Filesize
64KB

Download
memory/4424-137-0x0000000004E00000-0x0000000004E10000-memory.dmp

Filesize
64KB

Download
memory/4424-133-0x0000000000110000-0x00000000001B6000-memory.dmp

Filesize
664KB

Download
memory/4424-135-0x0000000004BD0000-0x0000000004C62000-memory.dmp

Filesize
584KB

Download
memory/4424-134-0x00000000050E0000-0x0000000005684000-memory.dmp

Filesize
5.6MB

Download

Analysis

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