dc811cc216e3cf694ac24841ea7df9df90175608af5a413070f58f685ecea10a

Analysis

max time kernel
95s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 21:53

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General

Target

$PLUGINSDIR/UAC.dll
Size

14KB
MD5

361e8e7f3e1e722f6ac5f4f3ab873035
SHA1

954e00873cc194fb87f350e52ec256c9df92a54b
SHA256

b7ae0a44882df8045866b75d4565ecb65f2f8e6ef19d23c532f2002a8caf9654
SHA512

7d45ba23ac24023b68225167d2a39f6aa553681f0a5a5a1df53407f51bbb471ac565e6b15e252e7e25e002b4b7eccde87f5a11e0ef21c26c71544ee6217d1b17
SSDEEP

384:FRNvuMqAChVo1WCeR3XbrKUgqy7g8HOZHDZ8:/NvZqA2o7IbOUgP42

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
behavioral8/memory/1240-0-0x0000000075360000-0x0000000075373000-memory.dmp	upx
behavioral8/memory/1240-1-0x0000000075360000-0x0000000075373000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3244	1240	WerFault.exe	81

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 WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 1240	1112	rundll32.exe	81
PID 1112 wrote to memory of 1240	1112	rundll32.exe	81
PID 1112 wrote to memory of 1240	1112	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UAC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UAC.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1240
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1240 -s 624
    3⤵
    - Program crash
    PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1240 -ip 1240
1⤵
PID:5004

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

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Downloads

memory/1240-0-0x0000000075360000-0x0000000075373000-memory.dmp

Filesize
76KB

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memory/1240-1-0x0000000075360000-0x0000000075373000-memory.dmp

Filesize
76KB

Download