agenttesla | a464c66919f4577ddbb6e4528095761af5ca04e28c0b53377e8cb8feaebf85db

General

Target

FHr0e3sxVyEquoS.exe
Size

613KB
MD5

9c663f1e3d86b80c289b305dd68b3f1d
SHA1

530dcd2e8468f43de91458de8a588613054e7e5a
SHA256

20648ff1d02266ebeece4bd2cc799c0b2be339887a45593c43cc851116820d4d
SHA512

30ea0932295b8fe069545ad0bfc377501681fad3ac3d8928b66ea657110a0be7e99f269711d3655445ef58c7e7c3c3c2cfe591e938f56656c4eb9c1a5e9067b0
SSDEEP

12288:E5US+Vb3QzPD17CV0AE/XS9HmP0JLfnoXBX58rMsuM9MeVvnjvpvo2NGVn2qr:EBYgzPD171gdmP0DoXBXuMSSed1voifq

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
%qroUozO;(C2Rlyb
Email To:
[email protected]

Signatures

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

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
2204	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 3 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

Credentials from Web Browsers
T1555.003

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
2	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2944	2496	FHr0e3sxVyEquoS.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	FHr0e3sxVyEquoS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FHr0e3sxVyEquoS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2496	FHr0e3sxVyEquoS.exe
2496	FHr0e3sxVyEquoS.exe
2944	FHr0e3sxVyEquoS.exe
2944	FHr0e3sxVyEquoS.exe
2204	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	FHr0e3sxVyEquoS.exe
Token: SeDebugPrivilege	2944	FHr0e3sxVyEquoS.exe
Token: SeDebugPrivilege	2204	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2204	2496	FHr0e3sxVyEquoS.exe	29
PID 2496 wrote to memory of 2204	2496	FHr0e3sxVyEquoS.exe	29
PID 2496 wrote to memory of 2204	2496	FHr0e3sxVyEquoS.exe	29
PID 2496 wrote to memory of 2204	2496	FHr0e3sxVyEquoS.exe	29
PID 2496 wrote to memory of 2872	2496	FHr0e3sxVyEquoS.exe	31
PID 2496 wrote to memory of 2872	2496	FHr0e3sxVyEquoS.exe	31
PID 2496 wrote to memory of 2872	2496	FHr0e3sxVyEquoS.exe	31
PID 2496 wrote to memory of 2872	2496	FHr0e3sxVyEquoS.exe	31
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32
PID 2496 wrote to memory of 2944	2496	FHr0e3sxVyEquoS.exe	32

C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe
"C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496
- 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\FHr0e3sxVyEquoS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe
  "C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe"
  2⤵
  PID:2872
- C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe
  "C:\Users\Admin\AppData\Local\Temp\FHr0e3sxVyEquoS.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2944

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/2496-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2496-1-0x0000000000B20000-0x0000000000BC0000-memory.dmp

Filesize
640KB

Download
memory/2496-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-3-0x00000000005D0000-0x00000000005E2000-memory.dmp

Filesize
72KB

Download
memory/2496-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/2496-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-6-0x0000000005330000-0x00000000053B4000-memory.dmp

Filesize
528KB

Download
memory/2496-21-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-20-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2944-22-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-25-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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