agenttesla | 2e9d474f90a5c43d767c73004a0461ab4375e969fa4f1c30aa6fc3262042f91c

General

Target

2723912 PDF.exe
Size

665KB
MD5

2be4110ed6b10a4b4be3ef34a33662f1
SHA1

b69d958c68834f79a74e37657403f3a8ac1fb239
SHA256

2e9d474f90a5c43d767c73004a0461ab4375e969fa4f1c30aa6fc3262042f91c
SHA512

81cce820bd888d665079ba2c33a10369806ca1c54dc8f50cb5f8609c98ff6b9a6d7bd707e54d2f65b2826fc5c51d092ce21ef2f0b1bcdb411ffacd489001d1f9
SSDEEP

12288:BrVQDZ6cwjwfSVmiGQPbZzYAzSbIQcQzqPveps8P1wEUxMNKUb:BSV+ZzYAzS2kqsUi

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://inhanoi.net.vn
Port:
21
Username:
[email protected]
Password:
^TSt3!FK$UBA

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2544	powershell.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
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2632	2100	2723912 PDF.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	2723912 PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2632	MSBuild.exe
2632	MSBuild.exe
2544	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	MSBuild.exe
Token: SeDebugPrivilege	2544	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2544	2100	2723912 PDF.exe	30
PID 2100 wrote to memory of 2544	2100	2723912 PDF.exe	30
PID 2100 wrote to memory of 2544	2100	2723912 PDF.exe	30
PID 2100 wrote to memory of 2544	2100	2723912 PDF.exe	30
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32
PID 2100 wrote to memory of 2632	2100	2723912 PDF.exe	32

C:\Users\Admin\AppData\Local\Temp\2723912 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\2723912 PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\2723912 PDF.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2100-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x00000000003F0000-0x000000000049C000-memory.dmp

Filesize
688KB

Download
memory/2100-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2100-3-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2100-4-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2100-6-0x00000000054D0000-0x0000000005552000-memory.dmp

Filesize
520KB

Download
memory/2100-21-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-20-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-16-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-15-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-13-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2632-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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