MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1
SHA3-384 hash: 4398d544a4cdcb4db10562b387d4ee8e6bc906ec11226aab5da997089d6576c807a84f1a246d111fc84e421437f32176
SHA1 hash: cec0da7df3718f791fc5b3232d3fa23e247449d4
MD5 hash: 4d1c7134a78c85bfb440bc5b7cafdce5
humanhash: yankee-friend-nuts-pip
File name:ORDER-06744AC.xls.....................exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:446'976 bytes
First seen:2020-10-13 05:45:56 UTC
Last seen:2020-10-13 07:09:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:wpp2dyzY9IayHWYAQxrTRQ+vp5hM1bmrEiGqxzEFFGGy4Uq:6zDXBTSc2qxg7GGy4J
Threatray 21 similar samples on MalwareBazaar
TLSH 8C944A46EB844585CD3E57B424394D24625FBEEAE4B8E24D2F8DB16533F33E2183254E
Reporter abuse_ch
Tags:AsyncRAT exe GoDaddy


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: a2nlsmtp01-03.prod.iad2.secureserver.net
Sending IP: 198.71.225.37
From: Ahmed Sajib <info@tulsaplywood.com>
Reply-To: info@moremarine.qa
Subject: PO #06744AC
Attachment: ORDER-06744AC.img (contains "ORDER-06744AC.xls.....................exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Variant.Bulz.91717.30247.4735.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Launching a process
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
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/489168
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Drops PE files to the user root directory
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 297028 Sample: ORDER-06744AC.xls............. Startdate: 13/10/2020 Architecture: WINDOWS Score: 100 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected AsyncRAT 2->49 51 4 other signatures 2->51 7 ORDER-06744AC.xls.....................exe 1 3 2->7         started        11 svchost.exe 2->11         started        13 svchost.exe 2->13         started        15 8 other processes 2->15 process3 dnsIp4 31 C:\Users\user\svchost.exe, PE32 7->31 dropped 33 C:\Users\user\svchost.exe:Zone.Identifier, ASCII 7->33 dropped 35 ORDER-06744AC.xls................exe.log, ASCII 7->35 dropped 53 Drops PE files to the user root directory 7->53 55 Writes to foreign memory regions 7->55 57 Maps a DLL or memory area into another process 7->57 67 2 other signatures 7->67 18 vbc.exe 2 7->18         started        59 Antivirus detection for dropped file 11->59 61 Multi AV Scanner detection for dropped file 11->61 63 Machine Learning detection for dropped file 11->63 21 vbc.exe 3 11->21         started        23 vbc.exe 11->23         started        25 vbc.exe 2 13->25         started        43 127.0.0.1 unknown unknown 15->43 65 Changes security center settings (notifications, updates, antivirus, firewall) 15->65 27 MpCmdRun.exe 15->27         started        file5 signatures6 process7 dnsIp8 37 rahim321.duckdns.org 192.169.69.25, 49714, 49734 WOWUS United States 18->37 39 dongreg202020.duckdns.org 178.33.222.241, 2703 OVHFR France 18->39 41 3 other IPs or domains 18->41 29 conhost.exe 27->29         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1/
Threat name:
ByteCode-MSIL.Trojan.Fsysna
Create hunting rule
Status:
Malicious
First seen:
2020-10-13 03:14:59 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ijik4f5sgd6srjddpizpu2qoihel4thaqji3weunn43dchoae2yq._file
Verdict:
unknown
Similar samples:
128077c7c2616b13946e1356a9cf02b6b26433c68a211463eb89dc92cca802b8
AsyncRAT
201f5c48c9fc90bf0072b26a4311616bb1f22037dbab6959355ac72fa751dc0a
AsyncRAT
33f1df49beeae6ce48eb82aa0020054c72363413bba1b0a5aa661905c2b2ac44
AsyncRAT
558e538ad1612561d8d9ad9e5df66474e79070bfcae5be80388322cff31b5831
AsyncRAT
5b5a1a7507d3758b05be55fb8218911b700fb933750fb310b454680e580fc58a
AsyncRAT
669def58a14c36be79b412c7333144359ef4b8756105c09994d564a13e487d9f
AsyncRAT
859fc8e7cbbba010c53cc2243f5d6c0b5ff9bea3a4e7df40e48eea523b4650d4
AsyncRAT
8b11730282a37ee753b8ee3505ec791433e757a30d3631ca2319749395a778bb
AsyncRAT
a58b3b7f178d68f4a4c9a1985bc2add6b951f449d18050a50282ab98d0884a8a
AsyncRAT
fc23fe967415672cbd925b8f8e1ab099003ba329592b4075fa36c8e53582f5cd
AsyncRAT
+ 11 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
rat persistence family:asyncrat
Link:
https://tria.ge/reports/201013-l3plzjj7gx/
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:
4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1
MD5 hash:
4d1c7134a78c85bfb440bc5b7cafdce5
SHA1 hash:
cec0da7df3718f791fc5b3232d3fa23e247449d4
Link:
https://www.unpac.me/results/fd6c845a-22b3-4b68-b689-8a951527da84/
SH256 hash:
218070594cc8d04e47e0fe3e5c77650642bd4d1ac64c98159a6c95a5bb7ff291
MD5 hash:
8dc01cf932d735a1ca149828b28cd440
SHA1 hash:
713153ceefa30d9992d3f4760ff7eb868c9f8f10
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/fd6c845a-22b3-4b68-b689-8a951527da84/
SH256 hash:
2e033894c2c2b66f6b91ddb2fbd28c384775c15af6550228090ef5d1c6546708
MD5 hash:
808844e3395441f70f3fe116066c9d0e
SHA1 hash:
901fc7ced5845fca3e17372469c8635f26748fc0
Link:
https://www.unpac.me/results/fd6c845a-22b3-4b68-b689-8a951527da84/
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/4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1

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 a13ba5260f95f4ead646ca10bbaaf8ce9c156bd4b7da6a9c784b23c0febe9e13

AsyncRAT

Executable exe 4250ae17b230fd28a4637a32fa6a0e41c8be4ce08251bb128d6f36311dc026b1

(this sample)

  
Dropped by
MD5 ec046ef641a691c350a33e5eab890875
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/70251/
  
Dropped by
SHA256 a13ba5260f95f4ead646ca10bbaaf8ce9c156bd4b7da6a9c784b23c0febe9e13

Comments