a3a264617e3ef583f7a8e9747ad08da7c5e831ee25eb597543512ae32ddf628c

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29/08/2024, 01:49

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General

Target

_asyncio.dll
Size

54KB
MD5

1c8b0c97c1349b5d3fbac844baf805de
SHA1

681250f026fe719c6a5725e9936d3cb531e979fa
SHA256

d0c6d739de371df2746686711361756b344ad1591435bd4a726ae75501912f04
SHA512

c7840b564a99814ca82a9831102a6f2113ca321df4632d7c5683225f9421132e11300b62df8419de41cde05f4f784622b433e8941c996a02f85475b82a74a68f
SSDEEP

1536:EhUoUIrl9ulDGSop9ghO27PmixtM5IhsnjERyGV:EhjprzsjmixtM5IhsnjWV

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1912	2072	WerFault.exe	31

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 11 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2404 wrote to memory of 2072	2404	rundll32.exe	31
PID 2072 wrote to memory of 1912	2072	rundll32.exe	32
PID 2072 wrote to memory of 1912	2072	rundll32.exe	32
PID 2072 wrote to memory of 1912	2072	rundll32.exe	32
PID 2072 wrote to memory of 1912	2072	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\_asyncio.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\_asyncio.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 220
    3⤵
    - Program crash
    PID:1912

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

Windows 7 deprecation

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