agenttesla | 28f8d9684a26ccf1f127b2296b2d3a89df746fafe3ee181aa643b00b536caea7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2025 01:06

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General

Target

BstkRT.dll
Size

5.7MB
MD5

7f06fa2333e9eb3700f4f392a9568af0
SHA1

358421b295b07035c1b97ed1fb75797262354bd6
SHA256

ed16489a57bfedb0388fdc4d09e06019e043eb8a32d66e50a3322af5026e85ed
SHA512

c8742cacec3c3e5dd77916b420399ab4a0245f202524172965bde6ff4f9de8019a2ff84e594d7818e0eb735f5ee353b43e171793da6acf5df0e8e0d5ec78adcd
SSDEEP

49152:GCidpajVSru1InXGnodk56GNSqvYfERzh5GtbbLJmjDfSo3daSfyIBCFp+cBLJ7a:crLe6GNtfyqfKIwOcBLJ7YgtTwk

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.transotraval.cl
Port:
21
Username:
[email protected]
Password:
vIZ2P]dt&a!d

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla

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 4956 set thread context of 3004	4956	rundll32.exe	83

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	installutil.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3004	installutil.exe
3004	installutil.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	installutil.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 1936	4956	rundll32.exe	82
PID 4956 wrote to memory of 1936	4956	rundll32.exe	82
PID 4956 wrote to memory of 1936	4956	rundll32.exe	82
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83
PID 4956 wrote to memory of 3004	4956	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\BstkRT.dll,#1
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:1936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3004-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3004-1-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3004-2-0x00000000055C0000-0x0000000005B64000-memory.dmp

Filesize
5.6MB

Download
memory/3004-3-0x0000000005180000-0x00000000051E6000-memory.dmp

Filesize
408KB

Download
memory/3004-4-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/3004-5-0x00000000063D0000-0x0000000006420000-memory.dmp

Filesize
320KB

Download
memory/3004-6-0x00000000064C0000-0x0000000006552000-memory.dmp

Filesize
584KB

Download
memory/3004-7-0x0000000006450000-0x000000000645A000-memory.dmp

Filesize
40KB

Download
memory/3004-8-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3004-9-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download