agenttesla | 26ef0814a002bedcc9770f2b3c5c79787fd036c7bf9f48691a26fa2bfbd9043e

Analysis

max time kernel
91s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2023, 14:39

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General

Target
FAXMESSAGE.exe
Size 848KB
Sample230207-r1bdpscb97
SHA256 26ef0814a002bedcc9770f2b3c5c79787fd036c7bf9f48691a26fa2bfbd9043e
MD5 a108331316cdaeafcd71daa1de0dee28
SHA1 9487349d9a526fb370f79cfe03049db8cd31b0bd
SHA512 20e908a85cf3a196173bb9fa28d7b16bfebdcf2cdd2b871516c466a61e052c3037e52a26e73099336378ac9e6b240b6c5b90ba0d4273c59506df5756ff49f31c
SSDEEP 24576:gA3TWNGIJfua6jldEFe6rxN5IC54TWM8:/5Va6+Ttgi
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot5970985875:AAGxcS7riy4ZlEmFj2Z031AsUoRvment2iI/

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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FAXMESSAGE.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FAXMESSAGE.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FAXMESSAGE.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
40	api.ipify.org
41	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 444 set thread context of 3324	444	FAXMESSAGE.exe	90

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
444	FAXMESSAGE.exe
444	FAXMESSAGE.exe
3324	FAXMESSAGE.exe
3324	FAXMESSAGE.exe
3324	FAXMESSAGE.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	444	FAXMESSAGE.exe
Token: SeDebugPrivilege	3324	FAXMESSAGE.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3324	FAXMESSAGE.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90
PID 444 wrote to memory of 3324	444	FAXMESSAGE.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FAXMESSAGE.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	FAXMESSAGE.exe

C:\Users\Admin\AppData\Local\Temp\FAXMESSAGE.exe
"C:\Users\Admin\AppData\Local\Temp\FAXMESSAGE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:444
- C:\Users\Admin\AppData\Local\Temp\FAXMESSAGE.exe
  "C:\Users\Admin\AppData\Local\Temp\FAXMESSAGE.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/444-132-0x0000000000650000-0x0000000000728000-memory.dmp

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memory/444-133-0x0000000005670000-0x0000000005C14000-memory.dmp

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memory/444-134-0x00000000050C0000-0x0000000005152000-memory.dmp

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memory/444-135-0x0000000005170000-0x000000000517A000-memory.dmp

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memory/444-136-0x0000000008F00000-0x0000000008F9C000-memory.dmp

Download

memory/3324-138-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3324-139-0x0000000006010000-0x0000000006076000-memory.dmp

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memory/3324-140-0x0000000006D00000-0x0000000006D50000-memory.dmp

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