5bdc0f75a9f85a09d9e656d5a9b2ddc21022ca78800545662a46b55a6f3e4200

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-10-2024 20:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

【GM工具】/gsub.dll
Size

7KB
MD5

afaf0c0807ce34cd5aa0cd88e392a9d5
SHA1

2f2f360619eb388ec32387696e8707172468388d
SHA256

0ffbe2710b4d5c5c925b065125cb137c5c3a9c5dcf5f0a630e00d638dde52e81
SHA512

126b509d339adbc3c99df04c9cb7f2eb30bc93822a4e103821f2c89b05f16081c36e9d9f39c8e8fbec6589b07469842c0c4f65855e942bc54daa1337dd22afe2
SSDEEP

96:OQHVZH2B1AbJDylhtP3LKuL9FTBcuKXNlS+410+QCsEwtCl9/I5CJlCxp:O6Tu1AbJOht/9NBcWBQCdwtc5IY8p

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral18/memory/4920-2-0x0000000074D30000-0x0000000074D8B000-memory.dmp	upx
behavioral18/memory/4920-6-0x0000000074D30000-0x0000000074D8B000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4960	4920	WerFault.exe	84

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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 920 wrote to memory of 4920	920	rundll32.exe	84
PID 920 wrote to memory of 4920	920	rundll32.exe	84
PID 920 wrote to memory of 4920	920	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\gsub.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:920
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\gsub.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 752
    3⤵
    - Program crash
    PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4920 -ip 4920
1⤵
PID:4552

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

Loading Replay Monitor...

Downloads

memory/4920-0-0x0000000074E50000-0x0000000074E5A000-memory.dmp

Filesize
40KB

Download
memory/4920-1-0x0000000010000000-0x000000001021F000-memory.dmp

Filesize
2.1MB

Download
memory/4920-2-0x0000000074D30000-0x0000000074D8B000-memory.dmp

Filesize
364KB

Download
memory/4920-3-0x0000000074E50000-0x0000000074E5A000-memory.dmp

Filesize
40KB

Download
memory/4920-7-0x0000000010000000-0x000000001021F000-memory.dmp

Filesize
2.1MB

Download
memory/4920-6-0x0000000074D30000-0x0000000074D8B000-memory.dmp

Filesize
364KB

Download