638725e768f51938111d67a314dfbe4bab352add4e18fd98c197bc7c6841c6a4

Analysis

max time kernel
93s
max time network
146s
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 04:39

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General

Target

638725e768f51938111d67a314dfbe4bab352add4e18fd98c197bc7c6841c6a4.dll
Size

76KB
MD5

dd8924170da3cb52da1963e2fe48d406
SHA1

aedce67c674909d3bf3b8a5085807153401a08d1
SHA256

638725e768f51938111d67a314dfbe4bab352add4e18fd98c197bc7c6841c6a4
SHA512

a7cd3a24f45954a5fe674228645ba7a6e3ad28a5cccb2d4389330e2dd9b6bfdfc1acee79820e3f2ef640bd6e08cef23dfc89d7ccd96d2677fbc83ab58e5ccc0f
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zpie/kcXS:c8y93KQjy7G55riF1cMo03m3

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1488-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1488-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4492	1488	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	1488	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 1488	908	rundll32.exe	83
PID 908 wrote to memory of 1488	908	rundll32.exe	83
PID 908 wrote to memory of 1488	908	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\638725e768f51938111d67a314dfbe4bab352add4e18fd98c197bc7c6841c6a4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\638725e768f51938111d67a314dfbe4bab352add4e18fd98c197bc7c6841c6a4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1488 -s 660
    3⤵
    - Program crash
    PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1488 -ip 1488
1⤵
PID:4792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/1488-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/1488-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download