agenttesla | 33ea02b92678e7c73d8f65dc81d76733fe0ce94b9c9b22ebe216132a0986436f

General

Target

3ba367bb53bc5ad7c0e8d7f5a9d33532.exe
Size

718KB
MD5

3ba367bb53bc5ad7c0e8d7f5a9d33532
SHA1

974c0e32a4480927f27daec1f65ce9bf23ff0e0a
SHA256

33ea02b92678e7c73d8f65dc81d76733fe0ce94b9c9b22ebe216132a0986436f
SHA512

c595d47918ca1a3facba0003cf1dd245e10aad78b190fe5715904c16fb13052e41a3a807da113ef46c7ea4688e01f7136b9ddeda0792398a5bc872a69628294e

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.tractorandinas.com/
Port:
21
Username:
[email protected]
Password:
~P*xO7vPBc-o

Signatures

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

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/1484-73-0x0000000002030000-0x000000000207D000-memory.dmp	net_reactor
behavioral1/memory/1484-77-0x0000000002170000-0x00000000021BC000-memory.dmp	net_reactor

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1484-73-0x0000000002030000-0x000000000207D000-memory.dmp	family_agenttesla
behavioral1/memory/1484-77-0x0000000002170000-0x00000000021BC000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe

Executes dropped EXE 2 IoCs

pid	Process
1556	Netplwiz.exe
924	Netplwiz.exe

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
T1081
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
T1081
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
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vaijia = "C:\\Users\\Public\\aijiaV.url"	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 756 set thread context of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1484	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe
1484	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1484	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1484	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	31
PID 756 wrote to memory of 1008	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	32
PID 756 wrote to memory of 1008	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	32
PID 756 wrote to memory of 1008	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	32
PID 756 wrote to memory of 1008	756	3ba367bb53bc5ad7c0e8d7f5a9d33532.exe	32
PID 1008 wrote to memory of 616	1008	cmd.exe	34
PID 1008 wrote to memory of 616	1008	cmd.exe	34
PID 1008 wrote to memory of 616	1008	cmd.exe	34
PID 1008 wrote to memory of 616	1008	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\3ba367bb53bc5ad7c0e8d7f5a9d33532.exe
"C:\Users\Admin\AppData\Local\Temp\3ba367bb53bc5ad7c0e8d7f5a9d33532.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:756
- C:\Users\Admin\AppData\Local\Temp\3ba367bb53bc5ad7c0e8d7f5a9d33532.exe
  C:\Users\Admin\AppData\Local\Temp\3ba367bb53bc5ad7c0e8d7f5a9d33532.exe
  2⤵
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1484
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\stt.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\PXOR.bat
    3⤵
    PID:616
  - - C:\Windows \System32\Netplwiz.exe
      "C:\Windows \System32\Netplwiz.exe"
      4⤵
      Executes dropped EXE
      PID:1556
  - - C:\Windows \System32\Netplwiz.exe
      "C:\Windows \System32\Netplwiz.exe"
      4⤵
      Executes dropped EXE
      PID:924

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/616-70-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/616-72-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/756-59-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1484-64-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/1484-60-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/1484-73-0x0000000002030000-0x000000000207D000-memory.dmp

Filesize
308KB

Download
memory/1484-75-0x0000000004852000-0x0000000004853000-memory.dmp

Filesize
4KB

Download
memory/1484-74-0x0000000004851000-0x0000000004852000-memory.dmp

Filesize
4KB

Download
memory/1484-76-0x0000000004853000-0x0000000004854000-memory.dmp

Filesize
4KB

Download
memory/1484-77-0x0000000002170000-0x00000000021BC000-memory.dmp

Filesize
304KB

Download
memory/1484-78-0x0000000004854000-0x0000000004856000-memory.dmp

Filesize
8KB

Download

Analysis

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