MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3. 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: 16


Intelligence 16 IOCs 1 YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3
SHA3-384 hash: 4dae336225a90ca02e891744ab45b795a8588ee11408213c0cf405a59e89a07be14a449f8a08493756a203ee9a85c3b1
SHA1 hash: bf96e4267c22e283d192e34fc50ded40802ac83c
MD5 hash: 168ee8403709fc4848328051ff819157
humanhash: shade-sodium-nineteen-arizona
File name:168ee8403709fc4848328051ff819157.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:71'680 bytes
First seen:2022-09-26 23:01:41 UTC
Last seen:Never
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:L2pM3Poamv/TQ6MLXIRakKVyreBOPew0ikXx5utYdsOWg+7/MajDw:iW3ADXcBURL4OmikXbuuVA/Rw
TLSH T1AA6302767B9C1531E969C73B1547DF08E139F6487F56468EECA8C23DBB221022901AF6
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
20.171.107.243:6606

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
20.171.107.243:6606 https://threatfox.abuse.ch/ioc/851867/

Intelligence

File Origin
# of uploads :
1
# of downloads :
339
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
crypt.exe
Verdict:
Malicious activity
Analysis date:
2022-09-23 05:30:05 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/fc4912d2-b0cc-4da3-a46a-23182cd6402b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/313721/
Detection(s):
Win.Packed.Razy-7334624-0
Create hunting rule

ditekSHen.INDICATOR.Packed.NyanXCAT-CSharpLoader.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a window
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Launching a process
Creating a file
Сreating synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63322f6e665fcdb8807a25e2/reports/07afacc9-af73-406c-b9e7-458b26718a75/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:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1c0c1858-4967-4e40-8c23-a7e5cc4e3ef1
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1077776
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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
Snort IDS alert for network traffic
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
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 710319 Sample: vL5sgCLREw.exe Startdate: 27/09/2022 Architecture: WINDOWS Score: 100 54 rositxado.tk 2->54 64 Snort IDS alert for network traffic 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 11 other signatures 2->70 9 vL5sgCLREw.exe 5 2->9         started        12 HWMonitor.exe 2->12         started        15 msiexec.exe 2->15         started        signatures3 process4 file5 44 C:\Users\user\AppData\...\HWMonitor.exe, PE32 9->44 dropped 46 C:\Users\user\AppData\...\vL5sgCLREw.exe.log, ASCII 9->46 dropped 17 RegAsm.exe 16 41 9->17         started        21 powershell.exe 1 12 9->21         started        76 Antivirus detection for dropped file 12->76 78 Multi AV Scanner detection for dropped file 12->78 80 Machine Learning detection for dropped file 12->80 signatures6 process7 dnsIp8 48 rositxado.tk 20.171.107.243, 49702, 49704, 8808 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 17->48 50 123.105.12.0.in-addr.arpa 17->50 52 3 other IPs or domains 17->52 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 17->56 58 May check the online IP address of the machine 17->58 60 Tries to steal Mail credentials (via file / registry access) 17->60 62 3 other signatures 17->62 23 cmd.exe 1 17->23         started        26 cmd.exe 1 17->26         started        28 conhost.exe 21->28         started        signatures9 process10 signatures11 72 Uses netsh to modify the Windows network and firewall settings 23->72 74 Tries to harvest and steal WLAN passwords 23->74 30 netsh.exe 3 23->30         started        32 conhost.exe 23->32         started        34 findstr.exe 1 23->34         started        36 chcp.com 1 23->36         started        38 netsh.exe 3 26->38         started        40 conhost.exe 26->40         started        42 chcp.com 1 26->42         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3/
Threat name:
ByteCode-MSIL.Trojan.ZillaAzorult
Create hunting rule
Status:
Malicious
First seen:
2022-09-24 06:08:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x53fiif3wa5ut5muaaqbhek6kcawbjhp5xqd4biqoxflvuzmkgzq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default collection persistence rat spyware stealer
Link:
https://tria.ge/reports/220926-2z4nzadccl/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
20.171.107.243:6606
20.171.107.243:7707
20.171.107.243:8808
rositxado.tk:6606
rositxado.tk:7707
rositxado.tk:8808
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cb665dbb-e28c-480f-991b-0c8679c90553
Unpacked files
SH256 hash:
d2f8525c6577033841b942a8142acb76c045747facfd25aa46d4c74fb8b926c6
MD5 hash:
6cfd8d59e7f3748c014a67cd964069d8
SHA1 hash:
77e8ac1828ff39e49811dbe780db87f087a6917b
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/c328ef5a-a3eb-4302-9725-74774df539c8/
SH256 hash:
bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3
MD5 hash:
168ee8403709fc4848328051ff819157
SHA1 hash:
bf96e4267c22e283d192e34fc50ded40802ac83c
Link:
https://www.unpac.me/results/c328ef5a-a3eb-4302-9725-74774df539c8/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf765420bbb0/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/bf765420bbb03b49f594002013915e508160a4efede03e051075cabad32c51b3

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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_EXE_Packed_NyanXCat_CSharpLoader
Create hunting rule
Author:ditekSHen
Description:Detects .NET executables utilizing NyanX-CAT C# Loader
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
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/313721/

Comments