5bdc0f75a9f85a09d9e656d5a9b2ddc21022ca78800545662a46b55a6f3e4200

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 20:12

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General

Target

【GM工具】/astart.dll
Size

27KB
MD5

15e6debd29d8e31ed63dc3bfcbf26311
SHA1

0b8caf0c040c303d19035fed90bf20e35f193ef7
SHA256

9113f41809be33566190a4f7b20378d69135a61028be33c0696163e8fe862a77
SHA512

972c00b26f9fe983530d7020e5c4426a4b237ea81a1da40c1444497d783bf9fe4b3b31589b3be1d943e05e9c67450f56794572eb2cf04011e3fa624da0849122
SSDEEP

768:+h1O4X9vvhwwcaKyyl6NEI3EY1IOfhbDdqT6:+hlvZAl6NL0YmOfeT

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
behavioral5/memory/1860-0-0x0000000074390000-0x00000000743EB000-memory.dmp	upx
behavioral5/memory/1860-2-0x0000000074390000-0x00000000743EB000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2404	1860	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 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 2364 wrote to memory of 1860	2364	rundll32.exe	30
PID 1860 wrote to memory of 2404	1860	rundll32.exe	31
PID 1860 wrote to memory of 2404	1860	rundll32.exe	31
PID 1860 wrote to memory of 2404	1860	rundll32.exe	31
PID 1860 wrote to memory of 2404	1860	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\astart.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\astart.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 220
    3⤵
    - Program crash
    PID:2404

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

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Downloads

memory/1860-0-0x0000000074390000-0x00000000743EB000-memory.dmp

Filesize
364KB

Download
memory/1860-2-0x0000000074390000-0x00000000743EB000-memory.dmp

Filesize
364KB

Download