b172efc475c40a628e13092afcfcedb21d9563431c869b8ca9ae9fa63455166a

Analysis

max time kernel
93s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:09

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General

Target

$PLUGINSDIR/nsArray.dll
Size

6KB
MD5

6206b94f91e92b7f7f72214c438dd414
SHA1

09281ee4a76aa7dce016e7476ce33aa74246a0c6
SHA256

b15de38c9d72eef3c8ac9336c39debb10edc8e4a26bcc32b319f6ae8c9141380
SHA512

502bedef4fe934c74903ea01036fc265b950a8bb4927f6b285926ff53140fa8a78f37bc7e39a8de8ccde0ba6cdf9d0f512379c9fef86ad60192ed4b447c00fd0
SSDEEP

96:QVtJ0bb2EKqyp//c6fbQ2Pz9AqgCLAk9F5LeT2b8HIK/O0iRxGQFIfA7gfMxLfA0:QGbQvp3c6/PwCLAk90K8DysQf0M2dja

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
behavioral6/memory/1192-0-0x00000000750A0000-0x00000000750AA000-memory.dmp	upx
behavioral6/memory/1192-2-0x00000000750A0000-0x00000000750AA000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4876	1192	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 4984 wrote to memory of 1192	4984	rundll32.exe	82
PID 4984 wrote to memory of 1192	4984	rundll32.exe	82
PID 4984 wrote to memory of 1192	4984	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 600
    3⤵
    - Program crash
    PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1192 -ip 1192
1⤵
PID:3200

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/1192-0-0x00000000750A0000-0x00000000750AA000-memory.dmp

Filesize
40KB

Download
memory/1192-2-0x00000000750A0000-0x00000000750AA000-memory.dmp

Filesize
40KB

Download