MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70. 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: 28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70
SHA3-384 hash: e5cb4d427f8fb90fa18e2921508e443ad4301da4b1ade3390fe032c4f361299b16ba2240c475dc231c640e9d3efa6a76
SHA1 hash: ae61e7239414c3ea8d6e6e148078aba7ed89f876
MD5 hash: 82b5703fbaf9ef623badd0ae12c4500b
humanhash: violet-july-robin-pizza
File name:TT COPY.scr
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:352'768 bytes
First seen:2020-10-19 18:23:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:P6VNocXJEvRPz6DB+BQ6+NOq9Byw2rWHu7JYyOV9:P6VNMAsZq98rqiJXOV
Threatray 388 similar samples on MalwareBazaar
TLSH 6C74F11F77C69BE5CA4D06362C67C1381B7BAE25614A92880FD09CAF7F7B75058242CE
Reporter abuse_ch
Tags:AsyncRAT GoDaddy scr


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: p3nlsmtpcp01-04.prod.phx3.secureserver.net
Sending IP: 184.168.200.145
From: Kahid Mohammed <info@avantchem.com>
Reply-To: info@avantchem.com
Subject: Fw: TT COPY
Attachment: TT COPY.img (contains "TT COPY.scr")

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73088/
Detection(s):
SecuriteInfo.com.Artemis82B5703FBAF9.22755.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
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:
72 / 100
Link:
https://www.joesandbox.com/analysis/495869
Signature
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
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: 300379 Sample: TT COPY.scr Startdate: 19/10/2020 Architecture: WINDOWS Score: 72 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected AsyncRAT 2->36 38 Machine Learning detection for sample 2->38 40 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->40 7 TT COPY.exe 1 1 2->7         started        10 TT COPY.exe 2->10         started        12 TT COPY.exe 2->12         started        process3 signatures4 42 Writes to foreign memory regions 7->42 44 Maps a DLL or memory area into another process 7->44 14 TT COPY.exe 7->14         started        17 vbc.exe 2 7->17         started        20 vbc.exe 2 10->20         started        22 vbc.exe 10->22         started        24 vbc.exe 2 12->24         started        process5 dnsIp6 46 Writes to foreign memory regions 14->46 48 Maps a DLL or memory area into another process 14->48 26 vbc.exe 3 14->26         started        28 178.33.222.241, 2703, 49746, 49749 OVHFR France 17->28 30 54.37.36.116, 49746 OVHFR France 17->30 32 79.134.225.92, 49714, 49763 FINK-TELECOM-SERVICESCH Switzerland 17->32 signatures7 process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 17:19:00 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fc3zkis5f3mgywj36bx7afyxmazyo2gyip4pn4wmrrndxaa2pnya._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
113542e4ae3f953dc690c8dc95e6cfc4cbe2d8354c9d6badf2ea69c03d598f44
AsyncRAT
4cfe4e820c2d2b070d71009beaa98c9f7dce82de24266a344b743c7f47fea142
AsyncRAT
6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea
AsyncRAT
89e9fd57dffefa56428cdea17fb31951591e0f7fbe8d25859dd7c8221f048d3d
AsyncRAT
a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
AsyncRAT
bbae735df39c1301901ca97c6993f2b6fd7233a0360761eab8b65f2556df4517
AsyncRAT
c578d33e132ccbbc26a4a31e6054fea7f42591b391e9b8eb30eaf732ed119088
AsyncRAT
e7c0c0108074647bb7a3c9d976c478e3fdbb047a910af9d988057508cec4dd8c
AsyncRAT
f2397e6357ab4351a130ce51fe8236c663b446bc8f414618890e45263460e6c7
AsyncRAT
fce6bfb928dd92b696a1af343d0b98561c3e594387218630db943106fea38776
AsyncRAT
+ 378 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-eek6mk6r1n/
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
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,79.134.225.92,37.120.208.36:2703
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,79.134.225.92,37.120.208.36:49714
Unpacked files
SH256 hash:
28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70
MD5 hash:
82b5703fbaf9ef623badd0ae12c4500b
SHA1 hash:
ae61e7239414c3ea8d6e6e148078aba7ed89f876
Link:
https://www.unpac.me/results/43ca69ad-3c32-4e57-a96d-9a9668569bc2/
SH256 hash:
2f1b05cc2b963706266b7e6aff34bad3aba40167798bf63454e7db7a6677e49c
MD5 hash:
adfe2098eb38b8340622d77fe3e24084
SHA1 hash:
538a0675c11a42915fa3dbbf3ff364d692e287da
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/43ca69ad-3c32-4e57-a96d-9a9668569bc2/
Parent samples :
f72a7401885bd2c5ef7ac79407e2f5b803e475b4fdb598207a103c908e63179f
6536526fa3203e5eb97977b6b5448f8b44053d7739147a672ebf8a249c9260ea
28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70
SH256 hash:
e28b66d73ef19e019ac9f1a32682f173a9e57cbab69e1a5adb3433cb26663ac3
MD5 hash:
3e1fb549aef7e06d5866f6f3f40438c2
SHA1 hash:
d855e6e167d747532535f5c3facea152e1f51522
Link:
https://www.unpac.me/results/43ca69ad-3c32-4e57-a96d-9a9668569bc2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70

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 a8ce172155c61f372f575296e5239e625235921ee3a5beb32e13a20942291c0b

AsyncRAT

Executable exe 28b795225d2ed86c593bf06ff0171760338768d843f8f6f2cc8c5a3b801a7b70

(this sample)

  
Dropped by
MD5 799bc95faf99eda5b1d692d5a624fdf2
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73088/
  
Dropped by
SHA256 a8ce172155c61f372f575296e5239e625235921ee3a5beb32e13a20942291c0b

Comments