4274ee16685c535e6c206e9b690411d5bfabe9096e3ea4d944a09cbb4708f8dc

Analysis

max time kernel
93s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 13:10

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General

Target

FX20GM/lpk.dll
Size

45KB
MD5

162f79fe4179ef30d72c5c0bdb55958c
SHA1

311a48bab53428b7e04edf252f978672411ec634
SHA256

013483068f0a2108099a073933013824ebfce5173c36bf812afa27a2853bd601
SHA512

0a71a3358cadb21ac976349d5076ec317634b87455e17d82658a2b5781726bc615bd93779a169e1e9688e6d27a2d47a853417f0276d7528eef91df2e98deace5
SSDEEP

768:zojY9Pw68uUCS77GhGLhLpms1RPo9yHHojY9P:Gm46BS7LL18Uo9yHSm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4788	hrl6169.tmp
2480	skwigk.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\skwigk.exe	hrl6169.tmp
File opened for modification	C:\Windows\SysWOW64\skwigk.exe	hrl6169.tmp

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2480 set thread context of 3620	2480	skwigk.exe	88

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4004	3620	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hrl6169.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skwigk.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 4240	2204	rundll32.exe	83
PID 2204 wrote to memory of 4240	2204	rundll32.exe	83
PID 2204 wrote to memory of 4240	2204	rundll32.exe	83
PID 4240 wrote to memory of 4788	4240	rundll32.exe	85
PID 4240 wrote to memory of 4788	4240	rundll32.exe	85
PID 4240 wrote to memory of 4788	4240	rundll32.exe	85
PID 2480 wrote to memory of 3620	2480	skwigk.exe	88
PID 2480 wrote to memory of 3620	2480	skwigk.exe	88
PID 2480 wrote to memory of 3620	2480	skwigk.exe	88
PID 2480 wrote to memory of 3620	2480	skwigk.exe	88
PID 2480 wrote to memory of 3620	2480	skwigk.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\FX20GM\lpk.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\FX20GM\lpk.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4240
- - C:\Users\Admin\AppData\Local\Temp\hrl6169.tmp
    C:\Users\Admin\AppData\Local\Temp\hrl6169.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    PID:4788

C:\Windows\SysWOW64\skwigk.exe
C:\Windows\SysWOW64\skwigk.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:3620
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 12
    3⤵
    - Program crash
    PID:4004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3620 -ip 3620
1⤵
PID:976

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

C:\Users\Admin\AppData\Local\Temp\hrl6169.tmp

Filesize
38KB

MD5
7f0d34d040b495d00901ef4d34bd67d4

SHA1
d776c1703723dcee77c1ea8a33de6aff9273fe03

SHA256
953069a5332c058224df36634c8e887557a0d6e023bb2bbeda32bf054fe63d6f

SHA512
8f1da9ef9d3ecf8a319eb0e9568b61b45599be7b8b85f6d5a40783546db5688d5c8e6475a4e3a88088c6be004822d08d5a5a938592bf7a85c77067688b781106

Download Submit
memory/3620-7-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4788-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download