MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d. 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 YARA 15 File information Comments
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SHA256 hash: 703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d
SHA3-384 hash: 97c1ef07340b4c73fc4e05317df5d2fcf1f26c3317b511773d0e6536e0c71003719cf2c5f620b9110d4e7a156780e3d9
SHA1 hash: ddd1b5f964d50fe72e20211c9fd4e227d2569aca
MD5 hash: d891bae31afba4a67b81e54907dfc682
humanhash: fillet-lactose-muppet-charlie
File name:703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d
Download: download sample
Signature AsyncRAT
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File size:418'816 bytes
First seen:2021-09-30 12:15:10 UTC
Last seen:2021-09-30 13:06:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:1DdL/VwbEIIj65LLYLCYJqvc1DnGtLCb/9Hb2ZtFoChrr+1BcVeRAMD71o/tD12n:HL/XGwb1CqClr+1BqeVdy1rZFc7
Threatray 8 similar samples on MalwareBazaar
TLSH T1D394BE5537DBC92BDFBF5778B4B001268371E4176627C7BB1AE084EE4C62314D9A0BA2
Reporter JAMESWT_WT
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Detection:
asyncrat
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Link:
https://www.capesandbox.com/analysis/193568/
Detection(s):
SecuriteInfo.com.BackDoor.AsyncRATNET.2.5293.7301.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:
Malware family:
AsyncRAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a4b559ba-024b-4a77-9486-da0e368a4a41
Result
Threat name:
AsyncRAT StormKitty
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Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/862106
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
May check the online IP address of the machine
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AsyncRAT
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 494531 Sample: 46xdVsXYZG Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 Sigma detected: Capture Wi-Fi password 2->67 69 9 other signatures 2->69 7 46xdVsXYZG.exe 15 145 2->7         started        12 46xdVsXYZG.exe 133 2->12         started        process3 dnsIp4 53 209.183.8.0.in-addr.arpa 7->53 55 api.telegram.org 149.154.167.220, 443, 49750, 49751 TELEGRAMRU United Kingdom 7->55 61 5 other IPs or domains 7->61 43 C:\Users\user\AppData\...\SFPUSAFIOL.jpg, ASCII 7->43 dropped 45 C:\Users\user\AppData\...\WKXEWIOTXI.xlsx, ASCII 7->45 dropped 47 C:\Users\user\AppData\...\WKXEWIOTXI.docx, ASCII 7->47 dropped 49 C:\Users\user\AppData\...\VAMYDFPUND.xlsx, ASCII 7->49 dropped 71 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->71 73 Protects its processes via BreakOnTermination flag 7->73 75 May check the online IP address of the machine 7->75 77 Uses schtasks.exe or at.exe to add and modify task schedules 7->77 14 cmd.exe 1 7->14         started        17 cmd.exe 1 7->17         started        19 schtasks.exe 1 7->19         started        57 209.183.8.0.in-addr.arpa 12->57 59 104.21.9.139, 443, 49854 CLOUDFLARENETUS United States 12->59 51 C:\Users\user\AppData\...\UOOJJOZIRH.xlsx, ASCII 12->51 dropped 79 Tries to harvest and steal browser information (history, passwords, etc) 12->79 81 Tries to harvest and steal WLAN passwords 12->81 83 Modifies existing user documents (likely ransomware behavior) 12->83 21 cmd.exe 12->21         started        23 cmd.exe 12->23         started        file5 signatures6 process7 signatures8 85 Uses netsh to modify the Windows network and firewall settings 14->85 87 Tries to harvest and steal WLAN passwords 14->87 25 netsh.exe 3 14->25         started        27 conhost.exe 14->27         started        37 2 other processes 14->37 29 netsh.exe 3 17->29         started        31 conhost.exe 17->31         started        33 chcp.com 1 17->33         started        35 conhost.exe 19->35         started        39 4 other processes 21->39 41 3 other processes 23->41 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
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Status:
Malicious
First seen:
2021-09-28 14:48:00 UTC
AV detection:
30 of 45 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oa6ox37qjiglvxvro4wrfh3iutezr6ft6nxayhxz2nb56cuqssoq._file
Verdict:
malicious
Similar samples:
23ca2524056b8f020707b5d3fc559040a2bfd4803a120e282cb24f67514e4759
AsyncRAT
40afa1e323be151d0d7a38c72f771b0b9e909f49ddade942d4260a5e29e5ec2f
AsyncRAT
5389a958986f6ceccaa9e44006852becbccabfb07f126d69e6b031227fb0b487
AsyncRAT
7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f
AsyncRAT
ca12d3f00e654a8c51e15c6eaed8330721e48f398f877fc0ed68a983d3191a37
AsyncRAT
f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860
AsyncRAT
Result
Malware family:
stormkitty
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Score:
  10/10
Tags:
family:asyncrat family:stormkitty rat spyware stealer
Link:
https://tria.ge/reports/210930-pfhk6shfc2/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops desktop.ini file(s)
Looks up external IP address via web service
Looks up geolocation information via web service
Reads user/profile data of web browsers
AsyncRat
Unpacked files
SH256 hash:
703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d
MD5 hash:
d891bae31afba4a67b81e54907dfc682
SHA1 hash:
ddd1b5f964d50fe72e20211c9fd4e227d2569aca
Detections:
win_asyncrat_w0
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Link:
https://www.unpac.me/results/06880e62-d62b-438a-af49-a5ebf3fbef5a/
Malware family:
RedLine.B
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/703cebeff04a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/703cebeff04a0cbadeb1772d129f68a4c998f8b3f36e0c1ef9d343df0a90949d

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
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Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:AsyncRat
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Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
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Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
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Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
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Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
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Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
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Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Telegram_Exfiltration_Via_Api
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Author:lsepaolo
Rule name:win_asyncrat_j1
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Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
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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.

Cape
Cape
https://www.capesandbox.com/analysis/193568/

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