MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea
SHA3-384 hash: 979506094574085e1d1b28f3dff4135458be75b46946ede4ed96979eedb123e5e5a876f53a1ffef4652ed839e95346ab
SHA1 hash: 3bc9048df9656310497993823139167c2d0bd458
MD5 hash: fc7c6270e24121bb1a1f3dcfc7de002d
humanhash: mississippi-white-eight-robin
File name:TT COPY.doc.....exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:681'984 bytes
First seen:2020-10-19 09:54:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:wt+oRZAv819c9e8Wi/cjPvCVFq39D6S/D:A+oRZAUjck++3/9D6S/D
Threatray 374 similar samples on MalwareBazaar
TLSH 0AE4A379C996D84ADCDE0F7962BFCE1440177DAC4AB9041EAE0F35330AB3ED1636A506
Reporter abuse_ch
Tags:AsyncRAT exe GoDaddy


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: p3nlsmtpcp01-02.prod.phx3.secureserver.net
Sending IP: 184.168.200.140
From: Ahmed Mohammed <info@baraviafashion.com>
Reply-To: admin@byhd.co.kr
Subject: Fw: TT COPY
Attachment: Payment Details.img (contains "TT COPY.doc.....exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72844/
Detection(s):
SecuriteInfo.com.Trojan.Heur.DNP.Pm0@aKWF53ii.10703.28413.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Launching a process
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/495170
Signature
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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)
Writes to foreign memory regions
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300039 Sample: TT COPY.doc.....exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AsyncRAT 2->45 47 3 other signatures 2->47 7 word.exe 1 2->7         started        10 TT COPY.doc.....exe 1 3 2->10         started        13 word.exe 2->13         started        process3 file4 49 Multi AV Scanner detection for dropped file 7->49 51 Machine Learning detection for dropped file 7->51 53 Writes to foreign memory regions 7->53 15 word.exe 7->15         started        18 vbc.exe 3 7->18         started        29 C:\Users\user\word.exe, PE32 10->29 dropped 31 C:\Users\user\word.exe:Zone.Identifier, ASCII 10->31 dropped 33 C:\Users\user\...\TT COPY.doc.....exe.log, ASCII 10->33 dropped 55 Maps a DLL or memory area into another process 10->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->57 20 vbc.exe 2 10->20         started        23 vbc.exe 2 13->23         started        25 vbc.exe 13->25         started        signatures5 process6 dnsIp7 59 Writes to foreign memory regions 15->59 61 Maps a DLL or memory area into another process 15->61 27 vbc.exe 2 15->27         started        35 37.120.208.36, 49714, 49731 M247GB Romania 20->35 37 54.37.36.116, 49746 OVHFR France 20->37 39 2 other IPs or domains 20->39 signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 05:08:14 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mu3fe35dea7f5olzo63lkreprncakplxhekhuzzox6fcjhesmdva._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
12859bb50366c248e9488a8852c0923bcb4135f8fcedcbac19228fe329ff39a7
AsyncRAT
17c38ccce635b7567fb09e4e48c53b5661bdd29e827917a447f0de7741694d71
AsyncRAT
25babc8d9be2e6cc3cdd408fac70bea0d9c3f0c3480945d3bcb374c88b6f82c1
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682be0853ccd6f60deb69d27941a628758c4e13e7d2e6ee95a95f415f3a9f0c6
AsyncRAT
9ce6624dc6af9ed519b91bec5776526a0e06677634483a76ad6861b88adf6c25
AsyncRAT
a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
AsyncRAT
bbae735df39c1301901ca97c6993f2b6fd7233a0360761eab8b65f2556df4517
AsyncRAT
c2e6a6a4dcceeb65c2b769b92223c4b5c6de325709146391a4863dd56f4eb3d1
AsyncRAT
c578d33e132ccbbc26a4a31e6054fea7f42591b391e9b8eb30eaf732ed119088
AsyncRAT
e7c0c0108074647bb7a3c9d976c478e3fdbb047a910af9d988057508cec4dd8c
AsyncRAT
+ 364 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
rat persistence family:asyncrat
Link:
https://tria.ge/reports/201019-wmgqqlwc36/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Uses the VBS compiler for execution
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
chongmei33.publicvm.com,185.165.153.116,54.37.36.116,185.244.30.92,dongreg202020.duckdns.org,178.33.222.241,rahim321.duckdns.org,79.134.225.92,37.120.208.36:49746,2703,49714
Unpacked files
SH256 hash:
6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea
MD5 hash:
fc7c6270e24121bb1a1f3dcfc7de002d
SHA1 hash:
3bc9048df9656310497993823139167c2d0bd458
Link:
https://www.unpac.me/results/db6e0ff8-1d56-4c7b-bc3f-52e500b7833b/
SH256 hash:
2f1b05cc2b963706266b7e6aff34bad3aba40167798bf63454e7db7a6677e49c
MD5 hash:
adfe2098eb38b8340622d77fe3e24084
SHA1 hash:
538a0675c11a42915fa3dbbf3ff364d692e287da
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/db6e0ff8-1d56-4c7b-bc3f-52e500b7833b/
Parent samples :
f72a7401885bd2c5ef7ac79407e2f5b803e475b4fdb598207a103c908e63179f
6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea
28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70
SH256 hash:
e912088a8f4ecfa117248f1825ed964743bfd9c02e8543c2ead29b3e3cd15957
MD5 hash:
d1c43b57afa1a1c92faf18d400da1a80
SHA1 hash:
c1cfe4c0e0ac8020e688b7da161af5ccaa0597c9
Link:
https://www.unpac.me/results/db6e0ff8-1d56-4c7b-bc3f-52e500b7833b/
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/6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea

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:asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information

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

Malspam

AsyncRAT

img 4f0197ad99bca75c8b5c49829543022c8588d6eff075dbfedb633e0227dd522e

AsyncRAT

Executable exe 6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea

(this sample)

  
Dropped by
MD5 d0b7205acea007dabec70814e45270ab
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72844/
  
Dropped by
SHA256 4f0197ad99bca75c8b5c49829543022c8588d6eff075dbfedb633e0227dd522e

Comments