281e2fd88a9d93fef1cbea4630166b3118a7cb7b0b3d66760f25e87afa3d66ac

Analysis

max time kernel
101s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 04:19

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General

Target

4d18c40f2e75d3a2c05f4f18e6ff66c0N.dll
Size

76KB
MD5

4d18c40f2e75d3a2c05f4f18e6ff66c0
SHA1

6023904df47b3f9a7056e4c239ad4fb538ca1925
SHA256

281e2fd88a9d93fef1cbea4630166b3118a7cb7b0b3d66760f25e87afa3d66ac
SHA512

e38a7fb522e76e5fe7080a2033bded4e95d327916c7c97708e36829b0eff5297cc58f43bf52ad033351204e728d981fa5119021e105af2ee4ab005c9ae690ef5
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zytv:c8y93KQjy7G55riF1cMo03Wv

Score

7^/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/3452-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3452-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4540	3452	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	3452	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 3452	3480	rundll32.exe	84
PID 3480 wrote to memory of 3452	3480	rundll32.exe	84
PID 3480 wrote to memory of 3452	3480	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d18c40f2e75d3a2c05f4f18e6ff66c0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d18c40f2e75d3a2c05f4f18e6ff66c0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3452
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 692
    3⤵
    - Program crash
    PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3452 -ip 3452
1⤵
PID:4744

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/3452-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/3452-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download