b9049f76f84a49ecefab5d8f9e8b6eafae9805144bb48246b43aeb594f2d41d4

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 03:46

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General

Target

b9049f76f84a49ecefab5d8f9e8b6eafae9805144bb48246b43aeb594f2d41d4.dll
Size

76KB
MD5

44ba550430f7c8a702c5b1004fefa5d3
SHA1

3552483c724ab90811f7d0b6072991cfd92194bb
SHA256

b9049f76f84a49ecefab5d8f9e8b6eafae9805144bb48246b43aeb594f2d41d4
SHA512

ad56074079cf809770a28c82f12601eefb093ea9992cbe8610521d5af6754345502cc83ce13a34b46c9c3c9c1cd30ce761b64d999ede298049ae5f2e9965114f
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZvnqMK1jhg:c8y93KQjy7G55riF1cMo03AMKjK

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/4232-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4232-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5032	4232	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	4232	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 4232	3276	rundll32.exe	83
PID 3276 wrote to memory of 4232	3276	rundll32.exe	83
PID 3276 wrote to memory of 4232	3276	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9049f76f84a49ecefab5d8f9e8b6eafae9805144bb48246b43aeb594f2d41d4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9049f76f84a49ecefab5d8f9e8b6eafae9805144bb48246b43aeb594f2d41d4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 720
    3⤵
    - Program crash
    PID:5032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4232 -ip 4232
1⤵
PID:3124

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/4232-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4232-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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