4f20680751618e92c4e9990b26f0584a44644bc6d73b1e717679de990e77dd61

Analysis

max time kernel
94s
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
12-12-2024 18:49

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General

Target

4f20680751618e92c4e9990b26f0584a44644bc6d73b1e717679de990e77dd61.dll
Size

76KB
MD5

6e6a79c337e0bee421286a57b07532cf
SHA1

6c6d0b3bddd3074c5142bd050219581a92fbb407
SHA256

4f20680751618e92c4e9990b26f0584a44644bc6d73b1e717679de990e77dd61
SHA512

52c518c9edd42e65efe3b369394edb4df0b8ffc9df475d9411e2cdf0ba2c4f6fccc096de748070bfeb1035d3f472fa0ea9c22482ad7d37b8ad6cd1096763c749
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZN8JX9PME1zxoP:c8y93KQjy7G55riF1cMo03QQP

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/1820-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1820-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4492	1820	WerFault.exe	82

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	1820	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 1820	2376	rundll32.exe	82
PID 2376 wrote to memory of 1820	2376	rundll32.exe	82
PID 2376 wrote to memory of 1820	2376	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f20680751618e92c4e9990b26f0584a44644bc6d73b1e717679de990e77dd61.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f20680751618e92c4e9990b26f0584a44644bc6d73b1e717679de990e77dd61.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1820
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 708
    3⤵
    - Program crash
    PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1820 -ip 1820
1⤵
PID:3344

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/1820-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/1820-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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