c639bd00e61699a7662208a4d9de8141146c1487d3a30469aaa79a9af4993ded

Analysis

max time kernel
141s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23/08/2024, 01:26

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General

Target
$PLUGINSDIR/nsLib.dll
Size 96KB
Sample240823-btwhasyblf
SHA256 f11da7abd72a00065e4950aeb47bee6687fb55173253780ff8e83305a3aee289
MD5 1ccfaf616ab023468531ee702a84054e
SHA1 1a1cee5f36713541f837d67d50c21e2805c8de9f
SHA512 f704685a07db8d10b881b725476036a5d624786ad10c58591c9fb9e2abdd61c2b6b3a55c78f3485318122cab160a120d9be8a4b1a116a5ff47ee76d7dab3aebb
SSDEEP 1536:6QzM8yN2YAbzbS95octLxyAxLk7ZWvw0ZlHGNUB/T5DDA7bVPDw:ZMRTAbzbaCctLxyAxLk7ZWvPl0c5DEV8
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	2728	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 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2644 wrote to memory of 2728	2644	rundll32.exe	30
PID 2728 wrote to memory of 2748	2728	rundll32.exe	31
PID 2728 wrote to memory of 2748	2728	rundll32.exe	31
PID 2728 wrote to memory of 2748	2728	rundll32.exe	31
PID 2728 wrote to memory of 2748	2728	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsLib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsLib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 240
    3⤵
    - Program crash
    PID:2748

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/2728-0-0x0000000000230000-0x000000000024D000-memory.dmp

Download

memory/2728-1-0x0000000000230000-0x000000000024D000-memory.dmp