MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fb3e734e2197f17c9d058a9001597ee1431526758407e59bb10f84d0855bb8f. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AsyncRAT


Vendor detections: 12


Intelligence 12 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fb3e734e2197f17c9d058a9001597ee1431526758407e59bb10f84d0855bb8f
SHA3-384 hash: 7fa7b42dd0136e9eccab084f6185c4727cee33f9289345dffbe279499414962cdb2896f3d95a6c705fed6b064e337524
SHA1 hash: 96f60544a9f9f40533012b265346f81109d4a563
MD5 hash: b82b657f2b51d3a32e7b05398ed1773d
humanhash: social-mars-dakota-lemon
File name:MS2106071066.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:865'792 bytes
First seen:2021-06-09 05:48:31 UTC
Last seen:2021-06-09 06:50:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'646 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:Wfo3pX2n8SeCNFvbvqU0wBnQ/4rDIZrPE21QLdOVfgheo4LNhjMIzIK0fxg0FBRC:WA3pX2n8SeCNlbvqU0HSDI
Threatray 869 similar samples on MalwareBazaar
TLSH AA05D4AC31A075DEC467CD768AA82CA4EA6174775B0FD203901705ED9A2CE97DF206F3
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
79.134.225.71:2121

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.71:2121 https://threatfox.abuse.ch/ioc/6527/

Intelligence

File Origin
# of uploads :
2
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/165533/
Detection(s):
SecuriteInfo.com.Variant.Bulz.508094.28486.7333.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799322
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431715 Sample: MS2106071066.exe Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Yara detected AntiVM3 2->51 53 5 other signatures 2->53 9 MS2106071066.exe 3 2->9         started        13 webs.exe 3 2->13         started        process3 file4 39 C:\Users\user\...\MS2106071066.exe.log, ASCII 9->39 dropped 59 Injects a PE file into a foreign processes 9->59 15 MS2106071066.exe 6 9->15         started        61 Multi AV Scanner detection for dropped file 13->61 63 Machine Learning detection for dropped file 13->63 18 webs.exe 2 13->18         started        signatures5 process6 file7 41 C:\Users\user\AppData\Roaming\webs.exe, PE32 15->41 dropped 20 cmd.exe 1 15->20         started        22 cmd.exe 1 15->22         started        process8 signatures9 25 webs.exe 2 20->25         started        28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        55 Uses schtasks.exe or at.exe to add and modify task schedules 22->55 32 conhost.exe 22->32         started        34 schtasks.exe 1 22->34         started        process10 signatures11 57 Injects a PE file into a foreign processes 25->57 36 webs.exe 1 2 25->36         started        process12 dnsIp13 43 asynco.ydns.eu 79.134.225.71, 2121, 49744, 49748 FINK-TELECOM-SERVICESCH Switzerland 36->43 45 192.168.2.1 unknown unknown 36->45
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3fb3e734e2197f17c9d058a9001597ee1431526758407e59bb10f84d0855bb8f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-09 05:49:09 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=h6z6onhcdf7rpsoqlcuqafmx5ykdcuthlbah4wn3cd4e2ccvxohq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
213528a5164fcb5253010129aac3855b4b905c9c5a9514a2a2b9db7e2b592a73
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
8caf62d462e50ef6d1d21a018b8c3f99ef7713af0353d7fa23660f6a6f04a4b9
AsyncRAT
a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
AsyncRAT
c64c2b5fd4c90ac4dd5c41b733d43669fd3dfa75342d98f29b7bd3178e6374de
AsyncRAT
c8cc7c1a1210a082960b929c3598521979e16c1c6f5626b8ad29b9618ab5e18c
AsyncRAT
d90bd5fe1ea6c9d3435e443b030981e2a4842d41b08cb39fc293ba4ea9ad1c9c
AsyncRAT
fee6cda76d8c5b289b76deba1176049e529f51ac06f817a8a22ec77b17d74f35
AsyncRAT
+ 859 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210609-bbk2zvbtaj/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
asynco.ydns.eu:2121
Unpacked files
SH256 hash:
6865c9b6ccd738dea8e9d6a52c0a58178a0db0b6f70bfef57fa5b673cbb31bb4
MD5 hash:
15b59f2d974da5c74de5c3962640a672
SHA1 hash:
fc3fd3f180f6ce3cd7e7e75eb9dd26105bad3482
Link:
https://www.unpac.me/results/61082b83-0ad8-41d7-944f-1a32ce84cecc/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/61082b83-0ad8-41d7-944f-1a32ce84cecc/
SH256 hash:
969ebb82ba426471aef89c92bda7c37a33469b1f62f4468737837e7dd8e0bfd4
MD5 hash:
a05da3ca3c1bc7891091d761f2127a53
SHA1 hash:
2a068af4bb550358b16cc4224bffb8ac54ca8092
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/61082b83-0ad8-41d7-944f-1a32ce84cecc/
SH256 hash:
3fb3e734e2197f17c9d058a9001597ee1431526758407e59bb10f84d0855bb8f
MD5 hash:
b82b657f2b51d3a32e7b05398ed1773d
SHA1 hash:
96f60544a9f9f40533012b265346f81109d4a563
Link:
https://www.unpac.me/results/61082b83-0ad8-41d7-944f-1a32ce84cecc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3fb3e734e2197f17c9d058a9001597ee1431526758407e59bb10f84d0855bb8f

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/165533/

Comments