77df65ebd9d748d2472897779440a16278257445fa95fc8eb48913b75a6050fc

Analysis

max time kernel
120s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
07-02-2025 22:32

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General

Target

77df65ebd9d748d2472897779440a16278257445fa95fc8eb48913b75a6050fc.dll
Size

76KB
MD5

79d859fa70a2fadb1f1f3defceeecda2
SHA1

e0a59cf438e8197c120e5dd7895e8a54456b374a
SHA256

77df65ebd9d748d2472897779440a16278257445fa95fc8eb48913b75a6050fc
SHA512

d75608de92b486cd839777cbad62eb1d7ca2ec8c313708d1db18a37f5cf870a2645a641e308088e990b812879993da05745340b67d1b2ac0eebd8650287c47cc
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZFp148uAvt:c8y93KQjy7G55riF1cMo03F148TF

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/4424-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4424-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3544	4424	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	4424	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3568 wrote to memory of 4424	3568	rundll32.exe	84
PID 3568 wrote to memory of 4424	3568	rundll32.exe	84
PID 3568 wrote to memory of 4424	3568	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\77df65ebd9d748d2472897779440a16278257445fa95fc8eb48913b75a6050fc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3568
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\77df65ebd9d748d2472897779440a16278257445fa95fc8eb48913b75a6050fc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4424
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 700
    3⤵
    - Program crash
    PID:3544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4424 -ip 4424
1⤵
PID:1884

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/4424-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4424-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download