MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f. 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: 14


Intelligence 14 IOCs YARA 16 File information Comments
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SHA256 hash: 7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f
SHA3-384 hash: fbc59c8238a74c6a11b745c89c7e0d682a5a7566db2fd870f14c1e97b9fb213f5cee044ff84adb3089e6da8e08755835
SHA1 hash: 79c1f96ed01592c7e65c2e00f931a157c15f28e4
MD5 hash: 14c6d942188587ff0f29679de43a2528
humanhash: fix-nitrogen-item-robert
File name:14c6d942188587ff0f29679de43a2528.exe
Download: download sample
Signature AsyncRAT
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File size:171'520 bytes
First seen:2021-08-11 15:21:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:XauB++hB+AYDt58T4Eu0RR61u/s9bLztDOCw9p+Wp+WIro:f7hG5y4Eug81Ss9bfsCw9dIr
Threatray 3 similar samples on MalwareBazaar
TLSH T17EF3491037E84A25E3BF5BB9F0B10229CB32F513A517E65F199924ED0DB2384DA11BB7
Reporter abuse_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
14c6d942188587ff0f29679de43a2528.exe
Verdict:
Malicious activity
Analysis date:
2021-08-11 15:23:17 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/1d1faf40-4ba1-4930-9b86-c52fd1d68577

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
StormKitty
Create hunting rule
Link:
https://www.capesandbox.com/analysis/178311/
Detection(s):
Win.Packed.Samas-8025724-0
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Win.Packed.AsyncRAT-9856570-1
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Deleting a recently created file
Reading critical registry keys
Creating a file
Replacing files
Running batch commands
Creating a window
Creating a file in the Windows subdirectories
Launching a process
Launching the process to change network settings
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Sending a UDP request
Stealing user critical data
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.
Malware family:
AsyncRAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f786b4c8-cf49-4030-ba57-4236dd2f234a
Result
Threat name:
AsyncRAT StormKitty Telegram RAT
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/831081
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
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
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
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 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: 463509 Sample: c4t14xmOBV.exe Startdate: 11/08/2021 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Sigma detected: Capture Wi-Fi password 2->47 49 10 other signatures 2->49 7 c4t14xmOBV.exe 15 115 2->7         started        process3 dnsIp4 37 216.47.6.0.in-addr.arpa 7->37 39 api.telegram.org 149.154.167.220, 443, 49718, 49719 TELEGRAMRU United Kingdom 7->39 41 4 other IPs or domains 7->41 31 C:\Users\user\AppData\...\ZQIXMVQGAH.xlsx, ASCII 7->31 dropped 33 C:\Users\user\AppData\...\IPKGELNTQY.docx, ASCII 7->33 dropped 35 C:\Users\user\AppData\...\IPKGELNTQY.xlsx, ASCII 7->35 dropped 51 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->51 53 May check the online IP address of the machine 7->53 55 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 7->55 57 3 other signatures 7->57 12 cmd.exe 1 7->12         started        15 cmd.exe 1 7->15         started        file5 signatures6 process7 signatures8 59 Uses netsh to modify the Windows network and firewall settings 12->59 61 Tries to harvest and steal WLAN passwords 12->61 17 netsh.exe 3 12->17         started        19 conhost.exe 12->19         started        21 findstr.exe 1 12->21         started        23 chcp.com 1 12->23         started        25 netsh.exe 3 15->25         started        27 conhost.exe 15->27         started        29 chcp.com 1 15->29         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
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Status:
Malicious
First seen:
2021-08-08 19:37:00 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pvfv2hcnflcjz4bqanetpregmk63npb5oznsvzlv2yj2cpc4urxq._file
Verdict:
malicious
Similar samples:
40afa1e323be151d0d7a38c72f771b0b9e909f49ddade942d4260a5e29e5ec2f
AsyncRAT
5389a958986f6ceccaa9e44006852becbccabfb07f126d69e6b031227fb0b487
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/210811-p778r984ye/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
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
Unpacked files
SH256 hash:
7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f
MD5 hash:
14c6d942188587ff0f29679de43a2528
SHA1 hash:
79c1f96ed01592c7e65c2e00f931a157c15f28e4
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/1f70a862-960a-4c80-b031-6f9cf1392953/
Malware family:
AsyncRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7d4b5d1c4d2a/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/7d4b5d1c4d2ac49cf030034937c48662bdb6bc3d765b2ae575d613a13c5ca46f

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:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_StormKitty
Create hunting rule
Author:ditekSHen
Description:Detects StormKitty infostealer
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Telegram_Exfiltration_Via_Api
Create hunting rule
Author:lsepaolo
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.

Cape
Cape
https://www.capesandbox.com/analysis/178311/

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