a8b27cfaf371ab4f7f26204b41f4107e931c89a3805ef6fd58dd18e133b5f1d7

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
18-12-2024 08:14

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General

Target

a8b27cfaf371ab4f7f26204b41f4107e931c89a3805ef6fd58dd18e133b5f1d7N.dll
Size

76KB
MD5

a64ca9d870f53a0b1496f64d5ec95410
SHA1

dfc4fc620573c87b4c578c8af7b78e906e995e71
SHA256

a8b27cfaf371ab4f7f26204b41f4107e931c89a3805ef6fd58dd18e133b5f1d7
SHA512

6f3974c4e42f6ac49b5f53e505c0ebd1fe46fe2ea0387ebe19af85a33f618eb6162a9c458aa0cd0989dd64debc00f17dd839940373b29006d42625d729fda875
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZaOsfl:c8y93KQjy7G55riF1cMo03q

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/5076-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/5076-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1180	5076	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	5076	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 5076	4308	rundll32.exe	83
PID 4308 wrote to memory of 5076	4308	rundll32.exe	83
PID 4308 wrote to memory of 5076	4308	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8b27cfaf371ab4f7f26204b41f4107e931c89a3805ef6fd58dd18e133b5f1d7N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8b27cfaf371ab4f7f26204b41f4107e931c89a3805ef6fd58dd18e133b5f1d7N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 712
    3⤵
    - Program crash
    PID:1180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5076 -ip 5076
1⤵
PID:644

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/5076-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/5076-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download