Analysis
- max time kernel
98s - max time network
103s - platform
windows11-21h2_x64 - resource
win11-20250502-en - resource tags
arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system - submitted
19/05/2025, 06:36
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
libbz2-1.dll
Resource
win10v2004-20250502-en
9 signatures
150 seconds
General
- Target libbz2-1.dll
- Size 3.3MB
- Sample250519-hc2rbatm16
- SHA256 cfe3100ff8dfe286be11b889ec8ca0a14211d56651469114ee5f440d8ff3e5a6
- MD5 faec49512ce29772f35810ca830a0def
- SHA1 ff7be42abaf57699aa1e01c999828d8f03b3b7c1
- SHA512 f73c7a2e358c9ab512074aaa4d4e117d575371db8f0d8aea038b115405a97eed864b52f5e9e90235b99abc0a02f420dc7ccb21b45473a6e0f4708d91859b489c
- SSDEEP 49152:zh65a6nCsjXMsP10BoR3Rn+jwUdYQkpsXD4hKwt0UhGpx/:qMi0aMipgpx/
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
ftp
-
Host
ftp://ftp.pxapas.com
-
Port
21
-
Username
-
Password
ENDÜSTRÝ24-a0POL9
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- 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 1 ip-api.com - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3540 set thread context of 4876 3540 rundll32.exe 79 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4876 AddInProcess32.exe 4876 AddInProcess32.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3540 rundll32.exe Token: SeDebugPrivilege 4876 AddInProcess32.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79 PID 3540 wrote to memory of 4876 3540 rundll32.exe 79
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\libbz2-1.dll,#11⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4876
-