99c3d6f6f518f73e6e9a0f4c41e3b6847ea78422f1d36cbf25b3058cd6ee9563

Analysis

max time kernel
93s
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
26/12/2024, 12:41

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General

Target

99c3d6f6f518f73e6e9a0f4c41e3b6847ea78422f1d36cbf25b3058cd6ee9563N.dll
Size

76KB
MD5

9a74e3654da3f7c8884cdcefa5dd3510
SHA1

f3561a43085b85beda9664cb9bd012d5a3413d54
SHA256

99c3d6f6f518f73e6e9a0f4c41e3b6847ea78422f1d36cbf25b3058cd6ee9563
SHA512

16eb03034848376e4955b655b369b822289753dcd47be1fe56328e7edffcf22d974476ed23f0923b9754b67caa8af7cd6a3febf383aeee26eab88205517747e0
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z0Ehb:c8y93KQjy7G55riF1cMo03iEp

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/4792-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4792-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3664	4792	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	4792	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 4792	4276	rundll32.exe	83
PID 4276 wrote to memory of 4792	4276	rundll32.exe	83
PID 4276 wrote to memory of 4792	4276	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\99c3d6f6f518f73e6e9a0f4c41e3b6847ea78422f1d36cbf25b3058cd6ee9563N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\99c3d6f6f518f73e6e9a0f4c41e3b6847ea78422f1d36cbf25b3058cd6ee9563N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 712
    3⤵
    - Program crash
    PID:3664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4792 -ip 4792
1⤵
PID:1772

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/4792-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4792-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download