agenttesla | dfe0333e43317bae44de641475b273ac7c5839d9cccfa3b7ddb726d5e224e476

General

Target

lV9mdHrmJsj1ocX.exe
Size

618KB
MD5

d2c7cc884cbc08d8d05e232e8c65e598
SHA1

73a8e883f694647499e918f567705e6939fea5e7
SHA256

dfe0333e43317bae44de641475b273ac7c5839d9cccfa3b7ddb726d5e224e476
SHA512

f2a3627a1c8369fe3e948b73e9376b115a020e0d9019e83b65382e00d9fa4a9d436e59c7b27efdafb0dbeb5f9f3e51da681de3e90fb56354a91be8d5e08c2150
SSDEEP

12288:TPhc0gvLlx0hOyX4mH5lKNIWV7ri1akBkj9zRqB+/dI6cLkR:TPqvLIWIWdi9bs6S

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
aowapnzgtwgqowgt
Email To:
[email protected]

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
308	powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2436 set thread context of 2784	2436	lV9mdHrmJsj1ocX.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	lV9mdHrmJsj1ocX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lV9mdHrmJsj1ocX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2784	lV9mdHrmJsj1ocX.exe
2784	lV9mdHrmJsj1ocX.exe
308	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2784	lV9mdHrmJsj1ocX.exe
Token: SeDebugPrivilege	308	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 308	2436	lV9mdHrmJsj1ocX.exe	30
PID 2436 wrote to memory of 308	2436	lV9mdHrmJsj1ocX.exe	30
PID 2436 wrote to memory of 308	2436	lV9mdHrmJsj1ocX.exe	30
PID 2436 wrote to memory of 308	2436	lV9mdHrmJsj1ocX.exe	30
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32
PID 2436 wrote to memory of 2784	2436	lV9mdHrmJsj1ocX.exe	32

C:\Users\Admin\AppData\Local\Temp\lV9mdHrmJsj1ocX.exe
"C:\Users\Admin\AppData\Local\Temp\lV9mdHrmJsj1ocX.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- 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\lV9mdHrmJsj1ocX.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:308
- C:\Users\Admin\AppData\Local\Temp\lV9mdHrmJsj1ocX.exe
  "C:\Users\Admin\AppData\Local\Temp\lV9mdHrmJsj1ocX.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784

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

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2436-0-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2436-1-0x0000000000F70000-0x000000000100E000-memory.dmp

Filesize
632KB

Download
memory/2436-2-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2436-3-0x0000000000250000-0x000000000025E000-memory.dmp

Filesize
56KB

Download
memory/2436-4-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2436-5-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2436-6-0x0000000005300000-0x0000000005382000-memory.dmp

Filesize
520KB

Download
memory/2436-20-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2784-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-16-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-10-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-19-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2784-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2784-21-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2784-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-24-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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