agenttesla | 3a2e31f2844df5cb91eedbf24c0b93de4b0aa08525f733132c2bce0d7ab81acc

Resubmissions

21-12-2024 22:57

241221-2xpr2atjar 10

21-12-2024 20:29

241221-y9xfvsyngy 10

Analysis

max time kernel
60s
max time network
40s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
21-12-2024 22:57

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General

Target

1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe
Size

447KB
MD5

d93ae89b2dd80e754f282db2f968e537
SHA1

52d0f0a4cc753daae727e5d79ae575f37042e6c2
SHA256

1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b
SHA512

021879e0ad17ceab7fa3cd29e483da9e7ff6155f4e1e1a493517549d8d25f004f234f6d2caf74944bd4718e6e24c79a5139d4018018350bc7434fafa3230c806
SSDEEP

6144:1HW9ZEjeXjYA2ospqAlwdVgDmETmGJE9i/pfp5thhhhYPDK2gIKb:mZ3XjYA2oXCRBuwpBrjYPDC

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.waterchem.com.tr
Port:
587
Username:
[email protected]
Password:
Excesspay$
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.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
2	api.ipify.org
1	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3848 set thread context of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77

System Location Discovery: System Language Discovery 1 TTPs 1 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	CasPol.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2700	CasPol.exe
2700	CasPol.exe
2700	CasPol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2700	CasPol.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	CasPol.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77
PID 3848 wrote to memory of 2700	3848	1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe	77

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe
"C:\Users\Admin\AppData\Local\Temp\1bd3fa491c5de8cb9189ff8f86fd1a7e27a8140e3578f8fa9ebb23931550cc5b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3848
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2700-9-0x0000000074F20000-0x00000000756D1000-memory.dmp

Filesize
7.7MB

Download
memory/2700-14-0x0000000074F20000-0x00000000756D1000-memory.dmp

Filesize
7.7MB

Download
memory/2700-10-0x00000000056B0000-0x000000000574C000-memory.dmp

Filesize
624KB

Download
memory/2700-11-0x0000000005A40000-0x0000000005A58000-memory.dmp

Filesize
96KB

Download
memory/2700-4-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2700-17-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2700-7-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2700-8-0x0000000005AF0000-0x0000000006096000-memory.dmp

Filesize
5.6MB

Download
memory/2700-18-0x0000000074F20000-0x00000000756D1000-memory.dmp

Filesize
7.7MB

Download
memory/2700-16-0x0000000006CE0000-0x0000000006CEA000-memory.dmp

Filesize
40KB

Download
memory/2700-15-0x0000000006D40000-0x0000000006DD2000-memory.dmp

Filesize
584KB

Download
memory/2700-12-0x00000000063F0000-0x0000000006456000-memory.dmp

Filesize
408KB

Download
memory/2700-13-0x0000000006BD0000-0x0000000006C20000-memory.dmp

Filesize
320KB

Download
memory/3848-6-0x00007FF840690000-0x00007FF841152000-memory.dmp

Filesize
10.8MB

Download
memory/3848-3-0x00007FF840690000-0x00007FF841152000-memory.dmp

Filesize
10.8MB

Download
memory/3848-2-0x000001586AE80000-0x000001586AEF0000-memory.dmp

Filesize
448KB

Download
memory/3848-1-0x000001586A7B0000-0x000001586A824000-memory.dmp

Filesize
464KB

Download
memory/3848-0-0x00007FF840693000-0x00007FF840695000-memory.dmp

Filesize
8KB

Download