agenttesla | ff0557222bc5667c61d9751976b24c98bf06500af03cc4294d3b2f39815582ad

General

Target

tmp.exe
Size

620KB
MD5

62a46435c5e579b3f3a7d59f64317a09
SHA1

79f2de013bdec6e7ca3d5e2262e36fb37e405c12
SHA256

ff0557222bc5667c61d9751976b24c98bf06500af03cc4294d3b2f39815582ad
SHA512

529cd8b9bdaa537efb3ab114261def9a6159c6db42f65578e8e18016b37a1806a7135f1b3e9bb5ad4811e056852570d873f49c375c4f6140a7d7d0583af25f41
SSDEEP

12288:iSEBrEBC8SZcbXPLVnUbnjs5g15340DmBa0tNTFL3KKBZ84xZau2+lddb5YdnEB:w495fLPO340DmBa0tNB3K8NX2+lHbeC

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1103875906361118810/4y7iINqCCd1vB_5CHVi8bfs-VsURmj2vh2ZdBw9vV7iC_QaLM-Uzs73INWoN8KSw28mH

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-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost# = "C:\\Users\\Admin\\AppData\\Roaming\\svchost#\\svchost#.exe"	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 1668	1544	tmp.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28
PID 1544 wrote to memory of 1668	1544	tmp.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

memory/1544-54-0x0000000000BC0000-0x0000000000C62000-memory.dmp

Filesize
648KB

Download
memory/1544-55-0x00000000005B0000-0x00000000005C8000-memory.dmp

Filesize
96KB

Download
memory/1544-56-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/1544-57-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/1544-58-0x0000000004D70000-0x0000000004DE0000-memory.dmp

Filesize
448KB

Download
memory/1544-59-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/1544-60-0x0000000004C10000-0x0000000004C5C000-memory.dmp

Filesize
304KB

Download
memory/1668-61-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-62-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-63-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-64-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1668-66-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-68-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-70-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1668-71-0x0000000004EC0000-0x0000000004F00000-memory.dmp

Filesize
256KB

Download
memory/1668-79-0x0000000004EC0000-0x0000000004F00000-memory.dmp

Filesize
256KB

Download

Analysis

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