agenttesla | 6133a8bf79e90b6d543472f1ccd1371e2ff93f5a47f45c846980174af005ff74

General

Target

msBXjHgLiqGMHCU.exe
Size

656KB
MD5

9ccb346f16d76d6b4d042563817f0438
SHA1

7fd86a1da960cd5650c648e096976a944ff39102
SHA256

6133a8bf79e90b6d543472f1ccd1371e2ff93f5a47f45c846980174af005ff74
SHA512

cbf81baf6f99768e96f04d0412d1512ea953ec98681e7c8abade77ca3c5c3f64d73e62d5d4f340dd16bbaa54b8c0f388c47dd543b7d532fdd5f3c111953f8cee
SSDEEP

12288:Otz9ygilPX0w1PtAdZt8HRAUI6MqLmcZh6eXHLkR:y1i5vMZuxAU19icT6e+

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
2156	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 2468 set thread context of 2676	2468	msBXjHgLiqGMHCU.exe	35

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	msBXjHgLiqGMHCU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msBXjHgLiqGMHCU.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2468	msBXjHgLiqGMHCU.exe
2468	msBXjHgLiqGMHCU.exe
2468	msBXjHgLiqGMHCU.exe
2468	msBXjHgLiqGMHCU.exe
2676	msBXjHgLiqGMHCU.exe
2676	msBXjHgLiqGMHCU.exe
2156	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2468	msBXjHgLiqGMHCU.exe
Token: SeDebugPrivilege	2676	msBXjHgLiqGMHCU.exe
Token: SeDebugPrivilege	2156	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2156	2468	msBXjHgLiqGMHCU.exe	31
PID 2468 wrote to memory of 2156	2468	msBXjHgLiqGMHCU.exe	31
PID 2468 wrote to memory of 2156	2468	msBXjHgLiqGMHCU.exe	31
PID 2468 wrote to memory of 2156	2468	msBXjHgLiqGMHCU.exe	31
PID 2468 wrote to memory of 2252	2468	msBXjHgLiqGMHCU.exe	33
PID 2468 wrote to memory of 2252	2468	msBXjHgLiqGMHCU.exe	33
PID 2468 wrote to memory of 2252	2468	msBXjHgLiqGMHCU.exe	33
PID 2468 wrote to memory of 2252	2468	msBXjHgLiqGMHCU.exe	33
PID 2468 wrote to memory of 572	2468	msBXjHgLiqGMHCU.exe	34
PID 2468 wrote to memory of 572	2468	msBXjHgLiqGMHCU.exe	34
PID 2468 wrote to memory of 572	2468	msBXjHgLiqGMHCU.exe	34
PID 2468 wrote to memory of 572	2468	msBXjHgLiqGMHCU.exe	34
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35
PID 2468 wrote to memory of 2676	2468	msBXjHgLiqGMHCU.exe	35

C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe
"C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468
- 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\msBXjHgLiqGMHCU.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe
  "C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe"
  2⤵
  PID:2252
- C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe
  "C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe"
  2⤵
  PID:572
- C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe
  "C:\Users\Admin\AppData\Local\Temp\msBXjHgLiqGMHCU.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676

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/2468-0-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2468-1-0x0000000001270000-0x0000000001318000-memory.dmp

Filesize
672KB

Download
memory/2468-2-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-3-0x00000000005D0000-0x00000000005E0000-memory.dmp

Filesize
64KB

Download
memory/2468-4-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2468-5-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-6-0x0000000005320000-0x00000000053A2000-memory.dmp

Filesize
520KB

Download
memory/2468-24-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-17-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-13-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-23-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-27-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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