2bbf54428e9587337010a261cc4b211d142a0cb28040935f6ee9e8ec7950eb79

Analysis

max time kernel
141s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/09/2024, 12:48

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General

Target

$PLUGINSDIR/UACElevator.dll
Size

36KB
MD5

9049a47cfbded47d5c1b070747daf6cf
SHA1

f5fc68906458850532732a6787f465666db3046d
SHA256

5118988cb678012ae4d5060eb8b0dd871be7fd514161b3c1751c066cdf352dff
SHA512

06c9081dea195843a850dce715c31019776453b3efd894ad7c0613ea29e2c0ced31499e635850f117ae72a1bd71046ce343835d18d033ba14fcaf5c60725f2e1
SSDEEP

768:ARS2nTOUZ+BisEjlm45ngj29qvnr8EliXajbLZ059:USwqUZ+BXEk45nVuARcyD

Score

7^/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
behavioral15/memory/1624-0-0x0000000010000000-0x0000000010019000-memory.dmp	upx
behavioral15/memory/1624-1-0x0000000010000000-0x0000000010019000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1840	1624	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1848 wrote to memory of 1624	1848	rundll32.exe	30
PID 1624 wrote to memory of 1840	1624	rundll32.exe	31
PID 1624 wrote to memory of 1840	1624	rundll32.exe	31
PID 1624 wrote to memory of 1840	1624	rundll32.exe	31
PID 1624 wrote to memory of 1840	1624	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UACElevator.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UACElevator.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 224
    3⤵
    - Program crash
    PID:1840

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/1624-0-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

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memory/1624-1-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

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