MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369
SHA3-384 hash: 79a363b079b428ed57b01c4222069768d74665db04eb969549b514e3ba63a89e5c6d1367cc132dfd26cdcd7e0154434f
SHA1 hash: 7bcf5decad95254d63e0d6e1bf5a8a2ce6b7b83a
MD5 hash: 4d0548ce04340402632809cdb61060c1
humanhash: fish-bravo-xray-nevada
File name:4d0548ce04340402632809cdb61060c1.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:49'664 bytes
First seen:2022-01-02 07:46:38 UTC
Last seen:2022-01-02 09:35:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:966awxY0Wr9iMgR4bZ/C7tipoS9/aqtEG:4rwxNWr9i7R4bZ/Ch+d9SuEG
Threatray 662 similar samples on MalwareBazaar
TLSH T1BD235AA7EE541113D0CC27F7CC93DBA002EB98F61B6A8B9A5D8D075D59D33E4DB02690
File icon (PE):PE icon
dhash icon 178ecd6e862edcf8 (1 x AgentTesla, 1 x AsyncRAT)
Reporter abuse_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice #73925.xlsm
Verdict:
Malicious activity
Analysis date:
2022-01-01 18:00:22 UTC
Tags:
macros macros-on-open loader
Link:
https://app.any.run/tasks/dd8e98f5-5d52-4a6f-a805-09b3c1b27822

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
zgRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/217064/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.38424882.28819.25724.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61d158794ab5c44cbf5b8b43/reports/f5d586af-4593-464d-8643-251f042b4643/overview
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:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8fa34f43-c74a-48b0-92e1-b5f936b9b3d4
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/914597
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates an undocumented autostart registry key
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Powershell Used To Disable Windows Defender AV Security Monitoring
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 547075 Sample: 32wjzdxQck.exe Startdate: 02/01/2022 Architecture: WINDOWS Score: 100 39 Multi AV Scanner detection for domain / URL 2->39 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 8 other signatures 2->45 7 32wjzdxQck.exe 16 9 2->7         started        process3 dnsIp4 37 136.144.41.207, 49762, 49808, 7707 WORLDSTREAMNL Netherlands 7->37 27 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 7->29 dropped 31 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 7->31 dropped 33 2 other files (1 malicious) 7->33 dropped 47 Creates an undocumented autostart registry key 7->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->49 51 Drops PE files with benign system names 7->51 53 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->53 12 AdvancedRun.exe 1 7->12         started        14 powershell.exe 16 7->14         started        16 AdvancedRun.exe 1 7->16         started        18 2 other processes 7->18 file5 signatures6 process7 process8 20 AdvancedRun.exe 12->20         started        23 conhost.exe 14->23         started        25 AdvancedRun.exe 16->25         started        dnsIp9 35 192.168.2.1 unknown unknown 20->35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2022-01-01 18:46:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
12 of 28 (42.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnif3wlzph3x5okf3twthni5jtrpajwbfzvibssn3lut6v2wwnuq._file
Verdict:
malicious
Similar samples:
25c6683580fed956729b416652583cae152d42d952cacfbfd4b4568850882a6b
AsyncRAT
29704c1c8f22aefdd760c85d19b71aa22fd35e0506804d629c92611f3df072bc
AsyncRAT
524a2c7a97d8323f5de3ca9ba3190e372d6f6e076522283a9697324d94ffcd38
AsyncRAT
695722bddb32724a102d8d12aca0ebc841c4944f52632c3ea595941a6e988759
AsyncRAT
6ff685e5acfd946101b558f9f9d47a0d515c62e7476f5f83694609d64343315e
AsyncRAT
7ac85caab1bd1edc1cbefe16fe41f33db07506d91b5a655640dc2b28eb660b27
AsyncRAT
800b4455105a08833332092017909f9dd47bd4ebfb1cbddbe0b95658d03b8d64
AsyncRAT
875ddce13022bafdf9e27f3eab2af78147c589037bf9c86192091e3843cedb16
AsyncRAT
b2ce2ad6d522621b917ce77b362541bcfa0976bdcbbc36f1a57ec1c5d6199112
AsyncRAT
+ 652 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/220102-jmh8dsach5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Nirsoft
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369
MD5 hash:
4d0548ce04340402632809cdb61060c1
SHA1 hash:
7bcf5decad95254d63e0d6e1bf5a8a2ce6b7b83a
Link:
https://www.unpac.me/results/b3dd5d84-c81c-425e-afe5-eeb7fdfcba29/
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/1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369

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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

AsyncRAT

Executable exe 1b505dd97979f77eb945dced33b51d4ce2f026c12e6a80ca4ddae93f5756b369

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1941658/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/217064/

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