b3907bee79541c0f61a81141ef7bc21f9f84a18d51db33fa801dba3d690f9a1d

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2025, 23:24

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General

Target

b3907bee79541c0f61a81141ef7bc21f9f84a18d51db33fa801dba3d690f9a1d.dll
Size

76KB
MD5

00557efa91c33d3424df52da02cbc937
SHA1

0b77453c7d4de9c59694c63348a3f73624d1dede
SHA256

b3907bee79541c0f61a81141ef7bc21f9f84a18d51db33fa801dba3d690f9a1d
SHA512

f5ce749eeb79a1c916175047e1762748245e15e4bcd6dc8576d37de23ef44614e523fa781d16e664f799517c706c84b4371e8841f235966945220541d58e6364
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z1W41j/7:c8y93KQjy7G55riF1cMo03PW4l/7

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/4696-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4696-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1036	4696	WerFault.exe	84

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	4696	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 4696	3944	rundll32.exe	84
PID 3944 wrote to memory of 4696	3944	rundll32.exe	84
PID 3944 wrote to memory of 4696	3944	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3907bee79541c0f61a81141ef7bc21f9f84a18d51db33fa801dba3d690f9a1d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3907bee79541c0f61a81141ef7bc21f9f84a18d51db33fa801dba3d690f9a1d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 692
    3⤵
    - Program crash
    PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4696 -ip 4696
1⤵
PID:4200

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/4696-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4696-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download