5bdc0f75a9f85a09d9e656d5a9b2ddc21022ca78800545662a46b55a6f3e4200

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 20:12

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General

Target

【GM工具】/lfs.dll
Size

14KB
MD5

940c753e4910b30ee173e918d18792b5
SHA1

f1d78fab6a867898c342bf60002ebf7767028565
SHA256

ac35a39907ae4b50e20b5a052311e1785dc69846dae3bfdf4f4065090e8e6563
SHA512

afd8a863bbcf5a7d73a7a11495fd678b0459b9a6ec2482f57738b8e01d70200b5dfc36f4814fe0939bc087776e0022dab9e99dc640272a2064212a5d950353c9
SSDEEP

384:zmsF7upOnnMgiCH17D0tA7DE4VVnPV5PzX:HpnnXiCH130tA3FVnd5b

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
behavioral19/memory/2176-0-0x0000000074FD0000-0x000000007502B000-memory.dmp	upx
behavioral19/memory/2176-2-0x0000000074FD0000-0x000000007502B000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2228	2176	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

Processes:

rundll32.exe

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2672 wrote to memory of 2176	2672	rundll32.exe	30
PID 2176 wrote to memory of 2228	2176	rundll32.exe	31
PID 2176 wrote to memory of 2228	2176	rundll32.exe	31
PID 2176 wrote to memory of 2228	2176	rundll32.exe	31
PID 2176 wrote to memory of 2228	2176	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\lfs.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\lfs.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 220
    3⤵
    - Program crash
    PID:2228

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/2176-0-0x0000000074FD0000-0x000000007502B000-memory.dmp

Filesize
364KB

Download
memory/2176-2-0x0000000074FD0000-0x000000007502B000-memory.dmp

Filesize
364KB

Download