99ef5a2aa84b9be1c6028be8c82936aa22923d2b6f539eaf799a50e45bcbb55f

Analysis

max time kernel
94s
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
04-01-2025 15:42

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General

Target

99ef5a2aa84b9be1c6028be8c82936aa22923d2b6f539eaf799a50e45bcbb55fN.dll
Size

76KB
MD5

1e8c8c8d9e77d4ad86eb2e6d3f80c420
SHA1

58a7841a6ac837e9a068f3aead0b4fc3d65e5459
SHA256

99ef5a2aa84b9be1c6028be8c82936aa22923d2b6f539eaf799a50e45bcbb55f
SHA512

04f394146cd9bbaae45e47b13037de1488de72bfc82ee5d474691114407d8ed79332ed54f542c051dd3d236f1dcead288f7f068128a1da85ab7313d01395d570
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZxX1i:c8y93KQjy7G55riF1cMo03bE

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/452-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/452-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2084	452	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	452	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 452	3652	rundll32.exe	82
PID 3652 wrote to memory of 452	3652	rundll32.exe	82
PID 3652 wrote to memory of 452	3652	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\99ef5a2aa84b9be1c6028be8c82936aa22923d2b6f539eaf799a50e45bcbb55fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\99ef5a2aa84b9be1c6028be8c82936aa22923d2b6f539eaf799a50e45bcbb55fN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:452
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 704
    3⤵
    - Program crash
    PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 452 -ip 452
1⤵
PID:4944

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/452-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/452-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download