agenttesla | 2bcf76968f1a344e8d602df548945429def0cb67e27d631fc5d181267b40c76a

General

Target

PO451033201.exe
Size

682KB
MD5

b8fcfd276053dd90813c19413a9710f8
SHA1

056da263b91468fbb92ca4fe65df474d01ee5725
SHA256

577593e5d16e4c0439339d4345505db0eb1595670ebdb271feaeaab510fd8b56
SHA512

ef997362df0697f700d96cdceab857417e06f1b5547260d55893ac5545a736356b123b9eff45eccec1a5cdb1488a47a1e606f79c4f41cd3d28621f2a4c5eb190
SSDEEP

12288:nK37z5GoJiGaq5auy+mHDgZSq/TAWzFJqJugzzjQyENH6N:q5GoR5aj+mHUZSq/NYvOgN

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6277498666:AAH4URlmeSysUKKZG20OTvrve55BRMLEu_o/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO451033201.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO451033201.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO451033201.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
33	api.ipify.org
34	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3980 set thread context of 2084	3980	PO451033201.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3980	PO451033201.exe
3980	PO451033201.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3980	PO451033201.exe
Token: SeDebugPrivilege	2084	PO451033201.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 4892	3980	PO451033201.exe	90
PID 3980 wrote to memory of 4892	3980	PO451033201.exe	90
PID 3980 wrote to memory of 4892	3980	PO451033201.exe	90
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91
PID 3980 wrote to memory of 2084	3980	PO451033201.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO451033201.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO451033201.exe

C:\Users\Admin\AppData\Local\Temp\PO451033201.exe
"C:\Users\Admin\AppData\Local\Temp\PO451033201.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Users\Admin\AppData\Local\Temp\PO451033201.exe
  "C:\Users\Admin\AppData\Local\Temp\PO451033201.exe"
  2⤵
  PID:4892
- C:\Users\Admin\AppData\Local\Temp\PO451033201.exe
  "C:\Users\Admin\AppData\Local\Temp\PO451033201.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2084

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO451033201.exe.log

Filesize
1KB

MD5
7cad59aef5a93f093b6ba494f13f796f

SHA1
3cef97b77939bfc06dfd3946fc1a8cd159f67100

SHA256
1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55

SHA512
8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

Download Submit
memory/2084-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2084-143-0x00000000056A0000-0x0000000005706000-memory.dmp

Filesize
408KB

Download
memory/2084-144-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/2084-145-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/3980-133-0x0000000000A00000-0x0000000000AB0000-memory.dmp

Filesize
704KB

Download
memory/3980-134-0x0000000005B00000-0x00000000060A4000-memory.dmp

Filesize
5.6MB

Download
memory/3980-135-0x0000000005430000-0x00000000054C2000-memory.dmp

Filesize
584KB

Download
memory/3980-136-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/3980-137-0x00000000056F0000-0x0000000005700000-memory.dmp

Filesize
64KB

Download
memory/3980-138-0x00000000056F0000-0x0000000005700000-memory.dmp

Filesize
64KB

Download
memory/3980-139-0x0000000009780000-0x000000000981C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing