MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae
SHA3-384 hash: 61c1d0b1e0fdfd795074383e5731eb673ee2bb96abea3c193a1c63c3b4f8578e60e625a1e2e54eee70a367b5b2bc4fed
SHA1 hash: 35a30528591b1cace45d0a4b7aaf536321aeddb7
MD5 hash: b1f6edd0ddd3f7a79acf72d5318f7b9d
humanhash: vermont-orange-carolina-two
File name:b1f6edd0ddd3f7a79acf72d5318f7b9d.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:49'152 bytes
First seen:2022-08-02 18:04:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 768:oDMq7EILuCCj+Di0telDSN+iV08Ybyge3TRQQBOi74tcvEgK/JvZVc6KN:MMvr0tKDs4zb1eTRQQBOiMinkJvZVclN
TLSH T116236D403BD8C136E2BD47B8ADF2E6418675E2676903CA596CC814EA1F13BC596036FE
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AsyncRAT exe RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
418
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
b1f6edd0ddd3f7a79acf72d5318f7b9d.exe
Verdict:
Malicious activity
Analysis date:
2022-08-03 06:02:27 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/2091ecf3-993f-4298-be45-115d60cb1ac7

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/296001/
Detection(s):
Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Malware.Enigmaprotector-9874743-0
Create hunting rule

Win.Malware.Enigmaprotector-9881027-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
DNS request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy.exe evasive hacktool mpcmdrun.exe msconfig.exe njrat packed rat regedit.exe
Link:
https://www.filescan.io/uploads/62e967d68d188266ad35e2b0/reports/20bf3374-fb99-46c3-866e-a151ee81ccf0/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:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0c98def-7ded-491d-b377-2c1d7d0a9e7d
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1045105
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (overwrites its own PE header)
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Schedule system process
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected DcRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 677600 Sample: b5jfbXqLy0.exe Startdate: 02/08/2022 Architecture: WINDOWS Score: 100 35 aka3.ddns.net 2->35 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 9 other signatures 2->51 8 b5jfbXqLy0.exe 7 2->8         started        12 svchost.exe 3 2->12         started        signatures3 process4 file5 31 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\...\b5jfbXqLy0.exe.log, ASCII 8->33 dropped 55 Detected unpacking (overwrites its own PE header) 8->55 57 Drops PE files with benign system names 8->57 14 cmd.exe 1 8->14         started        16 cmd.exe 1 8->16         started        59 Antivirus detection for dropped file 12->59 61 System process connects to network (likely due to code injection or exploit) 12->61 63 Multi AV Scanner detection for dropped file 12->63 65 Machine Learning detection for dropped file 12->65 signatures6 process7 signatures8 19 svchost.exe 2 14->19         started        23 conhost.exe 14->23         started        25 timeout.exe 1 14->25         started        43 Uses schtasks.exe or at.exe to add and modify task schedules 16->43 27 conhost.exe 16->27         started        29 schtasks.exe 1 16->29         started        process9 dnsIp10 37 aka3.ddns.net 10.0.0.4, 1616, 8828, 8848 unknown unknown 19->37 39 aka2.ddns.net 19->39 41 aka1.ddns.net 19->41 53 System process connects to network (likely due to code injection or exploit) 19->53 signatures11
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-02 18:05:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ubvmncutjirjc5tdovvtndhy5tkyjsdizqnixdoda2zdf73essxa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/220802-wn6fjaahfq/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
aka1.ddns.net:8848
aka1.ddns.net:8828
aka1.ddns.net:1616
aka2.ddns.net:8848
aka2.ddns.net:8828
aka2.ddns.net:1616
aka3.ddns.net:8848
aka3.ddns.net:8828
aka3.ddns.net:1616
Unpacked files
SH256 hash:
a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae
MD5 hash:
b1f6edd0ddd3f7a79acf72d5318f7b9d
SHA1 hash:
35a30528591b1cace45d0a4b7aaf536321aeddb7
Link:
https://www.unpac.me/results/1fb9cceb-a6bb-4c49-a6da-5ab9988c0e9f/
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/a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae

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_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
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: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

File information

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

Web download

AsyncRAT

Executable exe a06ac68a934a22917663756b368cf8ecd584c868cc1a8b8dc306b232ff6494ae

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2264028/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/296001/

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