a4d49f0687639aab8115e190e2284857e4a0f7541f79dc215fc1c9c2b1ecde2c

Resubmissions

28/03/2025, 16:42

250328-t7vr2ayvhv 7

28/03/2025, 16:40

250328-t61lwszrs5 7

Analysis

max time kernel
103s
max time network
143s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20250314-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
28/03/2025, 16:42

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Report Analysis Logs

General

Target

$PLUGINSDIR/nsis7z.dll
Size

96KB
MD5

21a09f96b9457a16f511471b87f59c51
SHA1

1ca59e391dcd679497f40b4e192101a3e335bdab
SHA256

376c4dde25193b10d16e17b88243940553e35d3c2f7219c19d5948ecb2233850
SHA512

44684024a16dc0ad3edc79b095cdac2890808f5153648944acdfd8e6b41fce27bfd0db2f004a05d30be30627f9cf843d994d730784b087720bcb760d298eb922
SSDEEP

3072:T4W0KMrKri9UX0X8Z365LUqXYwBleqleoutQSyEkQ:O1ZXqK5L3XsoS+xQ

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
behavioral28/memory/640-0-0x0000000010000000-0x0000000010036000-memory.dmp	upx
behavioral28/memory/640-2-0x0000000010000000-0x0000000010036000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3204	640	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 WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5584 wrote to memory of 640	5584	rundll32.exe	82
PID 5584 wrote to memory of 640	5584	rundll32.exe	82
PID 5584 wrote to memory of 640	5584	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5584
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 640 -s 600
    3⤵
    - Program crash
    PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 640 -ip 640
1⤵
PID:4624

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/640-0-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/640-2-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download