agenttesla | 735485f4f5c9da654b77caeb34f811eeeb9fbf2b85cc0e22b1b5820c708ec912

General

Target

9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe
Size

631KB
MD5

00261db2bfac32edfbdbf38b51370c13
SHA1

6de5e2fcfb1f6195d6b241da62b9c9888f0ca44f
SHA256

9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68
SHA512

a9c4602fd38f366077d851b89f793be0b2f44b7dd306590b62b4a8ee53b3bf6c828f060bc7305539ecce133a255c8f04b8d3200c61750183f50619fc620e2dac
SSDEEP

12288:RwfufVLrggT2l/PhteSmaYmpMMnFMc4v3CPkQgdOeXk/U:Rw0V/gG8/PhtqaY2FgOck/U

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
%qroUozO;(C2Rlyb
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 2 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

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1908	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe
1908	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30
PID 2684 wrote to memory of 1908	2684	9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe	30

C:\Users\Admin\AppData\Local\Temp\9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe
"C:\Users\Admin\AppData\Local\Temp\9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe
  "C:\Users\Admin\AppData\Local\Temp\9a9b3cf1980533ad02913deca0cb3c9a16a26f6a73e320bb707150a3db4c2b68.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1908-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-20-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1908-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-23-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1908-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1908-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-21-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1908-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1908-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2684-4-0x0000000000420000-0x0000000000428000-memory.dmp

Filesize
32KB

Download
memory/2684-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/2684-1-0x0000000000890000-0x0000000000934000-memory.dmp

Filesize
656KB

Download
memory/2684-2-0x00000000047B0000-0x0000000004820000-memory.dmp

Filesize
448KB

Download
memory/2684-22-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-3-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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