81b6f3adfb5004abe6fc1a5358ad286fb726a8bbc6d2aaaed70ef1f185e8272e

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/01/2025, 01:05

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General

Target

81b6f3adfb5004abe6fc1a5358ad286fb726a8bbc6d2aaaed70ef1f185e8272eN.dll
Size

76KB
MD5

8718dacda6c100ebf8765a719cbffaf0
SHA1

e771ac86648f1495260ab570fbd02f7f0acfa7f7
SHA256

81b6f3adfb5004abe6fc1a5358ad286fb726a8bbc6d2aaaed70ef1f185e8272e
SHA512

0d9d88d4611f3b49e42d49e8358c3b52e1cba0df8f095c8343f9ae2ee37a91d17e9fb0767ffefddcbc5a161b4861a4cbca6c80d2ed9c5e924c25bcddff836528
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZwQL+tmPL:c8y93KQjy7G55riF1cMo03GC+t+L

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/1316-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1316-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1220	1316	WerFault.exe	82

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	1316	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 1316	2876	rundll32.exe	82
PID 2876 wrote to memory of 1316	2876	rundll32.exe	82
PID 2876 wrote to memory of 1316	2876	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\81b6f3adfb5004abe6fc1a5358ad286fb726a8bbc6d2aaaed70ef1f185e8272eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\81b6f3adfb5004abe6fc1a5358ad286fb726a8bbc6d2aaaed70ef1f185e8272eN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1316
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 712
    3⤵
    - Program crash
    PID:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1316 -ip 1316
1⤵
PID:3324

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/1316-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/1316-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download