fcf2412e3281331b10c3436642a39afd95fbc22613b49850208c450058069b9d

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 05:44

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General

Target

fcf2412e3281331b10c3436642a39afd95fbc22613b49850208c450058069b9dN.dll
Size

76KB
MD5

2901b6e55792bac6832880d97d2991d0
SHA1

f0dcc4f47bde024e83c3af8aeec69dce8ba3f7c1
SHA256

fcf2412e3281331b10c3436642a39afd95fbc22613b49850208c450058069b9d
SHA512

1dd7a7321317256771222f6cbafeb6126c602eb40518129656749c1ab0ba3b3987d9974e3614ba94d8fd2df35f29f4aef880af7509e98375a0e627bfeaaa1747
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z1xwHM:c8y93KQjy7G55riF1cMo039EM

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4760-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4760-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2520	4760	WerFault.exe	83

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4760	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 4760	3592	rundll32.exe	83
PID 3592 wrote to memory of 4760	3592	rundll32.exe	83
PID 3592 wrote to memory of 4760	3592	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fcf2412e3281331b10c3436642a39afd95fbc22613b49850208c450058069b9dN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fcf2412e3281331b10c3436642a39afd95fbc22613b49850208c450058069b9dN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 708
    3⤵
    - Program crash
    PID:2520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4760 -ip 4760
1⤵
PID:3332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4760-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4760-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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