asyncrat | 91bff591cfddde25da4bc8eb593fbf89aa1981ce74357b0935264f024de13f6d

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
06/10/2023, 16:01

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General

Target

Stub.exe
Size

62KB
MD5

aea08c07bbc5ba70989d165374b3da4e
SHA1

5ac5542073e227d094287ce0d36d015203b577d6
SHA256

91bff591cfddde25da4bc8eb593fbf89aa1981ce74357b0935264f024de13f6d
SHA512

99d01b719b323e4cf9a6cd8fbf6a9dcc69ceab6f91329ad939db93f4a988f7fc4a2fe76180dd27c3259834835a110e3787b2b540764328914e1ec9b08b63c0ef
SSDEEP

1536:/F2UkM9DZk1nukMPaoljhSnOuVw8hE8PU6a6KMz5bs6g6g+mNXHgnono+X8roTRb:N2UkM9DZkFE8PU6a6KMz5bsXD+mFAnoD

Score

10^/10

asyncrat asmoundox rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

ASMOUNDOX

dkteamfix.webhop.net:2266

Mutex

AsyncMutex_doxi394iw3

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/328-0-0x0000000000050000-0x0000000000066000-memory.dmp	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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	328	Stub.exe

C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:328

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

C:\Users\Admin\AppData\Local\Temp\Cab4694.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar5CD5.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/328-1-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/328-0-0x0000000000050000-0x0000000000066000-memory.dmp

Filesize
88KB

Download
memory/328-2-0x0000000004480000-0x00000000044C0000-memory.dmp

Filesize
256KB

Download
memory/328-19-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/328-38-0x0000000004480000-0x00000000044C0000-memory.dmp

Filesize
256KB

Download