asyncrat | e78f3b078feeb0f431cdc2329f2ef7313b072d3fdb7073cb6aea12c7873e7aaf

Analysis

max time kernel
105s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
21-07-2024 21:27

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General

Target

12edfae99bb76bc207f28f94608167a0N.dll
Size

2.4MB
MD5

12edfae99bb76bc207f28f94608167a0
SHA1

595d7b4bfc63b9c6752236ad476dfe38e785d2f7
SHA256

e78f3b078feeb0f431cdc2329f2ef7313b072d3fdb7073cb6aea12c7873e7aaf
SHA512

a38791f4e92fd1359fb6e44a6b6943dee288ba89d3b1b17524363405c24db2a6c50ef3a4f95565e5f464d2a4b59b0303608285e9f4728cdbe78a9ff0e527b35b
SSDEEP

49152:UeLJJtmeOJZFurwIrYRZqpxh2Q9yjzIjC/q8tfNstbwK/eWL0yqbbt:INIrYLYhtvMtfNstsQVL0yqbbt

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

B6nFmGTapMtl

Attributes

delay
3
install
false
install_file
curl.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/3WsmZuWC

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1388-2-0x000001A3068B0000-0x000001A3068C2000-memory.dmp	family_asyncrat

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\12edfae99bb76bc207f28f94608167a0N.dll,#1
1⤵
- Checks BIOS information in registry
PID:1388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1388-1-0x00007FF9F9BF0000-0x00007FF9F9BF2000-memory.dmp

Filesize
8KB

Download
memory/1388-0-0x00007FF9EA1F0000-0x00007FF9EA86C000-memory.dmp

Filesize
6.5MB

Download
memory/1388-2-0x000001A3068B0000-0x000001A3068C2000-memory.dmp

Filesize
72KB

Download
memory/1388-4-0x00007FF9F9B50000-0x00007FF9F9D45000-memory.dmp

Filesize
2.0MB

Download
memory/1388-3-0x00007FF9F9B50000-0x00007FF9F9D45000-memory.dmp

Filesize
2.0MB

Download
memory/1388-5-0x00007FF9EA1F0000-0x00007FF9EA86C000-memory.dmp

Filesize
6.5MB

Download