asyncrat | 7cea3459fe006e787947d8eedc2770285061bc5e9a0ca0ffc7213a96756341fb

Analysis

max time kernel
141s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 00:57

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General

Target

regasms.exe
Size

63KB
MD5

9cded6e0c0b625370bb17884b7611955
SHA1

d55f1c17b783b372af8c8e2207386e4f3f886cd5
SHA256

7cea3459fe006e787947d8eedc2770285061bc5e9a0ca0ffc7213a96756341fb
SHA512

e83a3c4c8e0097f2ed20f8bff4526be646a2b3f574fc6f2876ce581208ccc0576124110cb4b4a5025a3ab1486c6d5a8e18ffe81cd8bc42c8792d54b7088639ab
SSDEEP

1536:62wukvF1ak9gcKu5UYFQL2SNy5b/XPrdBHHCrmTGxx:62dkvF1ak9Ku5UYFSjy5b/Dd8EKx

Score

10^/10

asyncrat lnkk rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

LNKK

leetboy.dynuddns.net:1338

Mutex

AsyncMutex_6h2caasdas2133sOkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

regasms.exe

pid process

3620 regasms.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasms.exe

description pid process

Token: SeDebugPrivilege 3620 regasms.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

regasms.exe

pid process

3620 regasms.exe

pid	process
3620	regasms.exe

description	pid	process
Token: SeDebugPrivilege	3620	regasms.exe

pid	process
3620	regasms.exe

C:\Users\Admin\AppData\Local\Temp\regasms.exe
"C:\Users\Admin\AppData\Local\Temp\regasms.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3620

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3488 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:3528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3620-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

Filesize
4KB

Download
memory/3620-1-0x00000000008B0000-0x00000000008C6000-memory.dmp

Filesize
88KB

Download
memory/3620-2-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/3620-3-0x0000000005B40000-0x00000000060E4000-memory.dmp

Filesize
5.6MB

Download
memory/3620-4-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download
memory/3620-5-0x0000000005900000-0x000000000590A000-memory.dmp

Filesize
40KB

Download
memory/3620-8-0x0000000006880000-0x000000000691C000-memory.dmp

Filesize
624KB

Download
memory/3620-9-0x0000000006360000-0x00000000063C6000-memory.dmp

Filesize
408KB

Download
memory/3620-10-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

Filesize
4KB

Download
memory/3620-11-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download