f88cf1ad13c22b0df6096e0763d74495b68faf89380a50088c7ac57f303decf8

Analysis

max time kernel
94s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 15:16

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General

Target

$PLUGINSDIR/version.dll
Size

6KB
MD5

ebc5bb904cdac1c67ada3fa733229966
SHA1

3c6abfa0ddef7f3289f38326077a5041389b15d2
SHA256

3eba921ef649b71f98d9378dee8105b38d2464c9ccde37a694e4a0cd77d22a75
SHA512

fa71afcc166093fbd076a84f10d055f5a686618711d053ab60d8bd060e78cb2fdc15fa35f363822c9913413251c718d01ddd6432ab128816d98f9aabf5612c9f
SSDEEP

96:nPtMckE1e91BopVyXwUhn3f1I0vOKeoqO4d8QvS9:n1MMuOUhdI0c04yV9

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
behavioral12/memory/4876-0-0x00000000003F0000-0x00000000003FC000-memory.dmp	upx
behavioral12/memory/4876-1-0x00000000003F0000-0x00000000003FC000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3296	4876	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 WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4876	4120	rundll32.exe	83
PID 4120 wrote to memory of 4876	4120	rundll32.exe	83
PID 4120 wrote to memory of 4876	4120	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\version.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\version.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 608
    3⤵
    - Program crash
    PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4876 -ip 4876
1⤵
PID:4224

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

Replay Monitor

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Downloads

memory/4876-0-0x00000000003F0000-0x00000000003FC000-memory.dmp

Filesize
48KB

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memory/4876-1-0x00000000003F0000-0x00000000003FC000-memory.dmp

Filesize
48KB

Download