MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852
SHA3-384 hash: 9e36983970b98f8c01e60a5b5d42803ccbf871d65a2bd8452ea4e16cf643f6307efa67a88cbe39969c6828f852f3c1c9
SHA1 hash: ef6469824fa68e4dc16abd5553ded87eb5d7b9dc
MD5 hash: ca1bf7a76a9eaa257b3924f2546344b7
humanhash: fifteen-jupiter-nineteen-low
File name:ca1bf7a76a9eaa257b3924f2546344b7
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:64'512 bytes
First seen:2022-01-13 12:30:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 1536:fhozHh1AkR7IWL3xJV8vkbbYwD0GFZVclN:fhozHh1AkR7X3xvekbbYozY
Threatray 1'896 similar samples on MalwareBazaar
TLSH T165536C002798CA65E1AD4AF8BCF2554146B5D6372106DB5E7CC804DBABAEFC606133FE
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ca1bf7a76a9eaa257b3924f2546344b7
Verdict:
Malicious activity
Analysis date:
2022-01-13 12:33:40 UTC
Tags:
trojan
Link:
https://app.any.run/tasks/5296ff67-3b95-4643-ab05-69232a356d83

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/218993/
Detection(s):
Win.Packed.Samas-8025724-0
Create hunting rule

Win.Packed.Razy-9807129-0
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

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

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

Win.Trojan.AsyncRAT-9914220-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
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
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm cmd.exe configsecuritypolicy.exe evasive hacktool mpcmdrun.exe msconfig.exe njrat obfuscated packed rat regedit.exe replace.exe schtasks.exe
Link:
https://www.filescan.io/uploads/61e01b8a1883c5ba4ec7b5a8/reports/46dca7b3-f7f3-46b3-aac4-508d46e53405/overview
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b91b6b6c-df1a-49ed-9395-7287d6ee2f35
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/920040
Signature
.NET source code contains potential unpacker
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)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 552518 Sample: KcnNRowzqk Startdate: 13/01/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 5 other signatures 2->48 7 KcnNRowzqk.exe 7 2->7         started        process3 file4 28 C:\Users\user\AppData\Roaming\svcs.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\KcnNRowzqk.exe.log, ASCII 7->30 dropped 50 Detected unpacking (overwrites its own PE header) 7->50 11 cmd.exe 1 7->11         started        13 cmd.exe 1 7->13         started        signatures5 process6 signatures7 16 svcs.exe 1 2 11->16         started        20 conhost.exe 11->20         started        22 timeout.exe 1 11->22         started        52 Uses schtasks.exe or at.exe to add and modify task schedules 13->52 24 conhost.exe 13->24         started        26 schtasks.exe 1 13->26         started        process8 dnsIp9 32 0x0x0pp.duckdns.org 2.58.149.98, 49758, 8888 GBTCLOUDUS Netherlands 16->32 34 Antivirus detection for dropped file 16->34 36 Multi AV Scanner detection for dropped file 16->36 38 Detected unpacking (overwrites its own PE header) 16->38 40 Machine Learning detection for dropped file 16->40 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2022-01-11 17:44:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
40 of 43 (93.02%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
4be7c85a7b9d5a472831cab1e15aa7b81547f13b0167af8a31cfe958a2069ebc
AsyncRAT
5d355666219db06acc93d01c0973c0c0a5db514b5af2c43dd7d97075d7b78914
AsyncRAT
8e816710624f15fee0d69bfff4a809e9a038fd58350e60bc0b798cd0dddb652f
AsyncRAT
d17d26fe698a00cf23683e5df58679d6d1bf18866de4b87edb62a2bc64cb22bc
AsyncRAT
d39ee12d89334adc6eb6849c968c9dd89e33b0308cb8b5ab285bf7ac0700eb2e
AsyncRAT
fa9e3e8282175677e1bf926361df6aa60510a6ba8d3d8857d9c9cd850d971d60
AsyncRAT
+ 1'886 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:nibba rat
Link:
https://tria.ge/reports/220113-pp2qeaaaf7/
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
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
0x0x0pp.duckdns.org:8888
Unpacked files
SH256 hash:
1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852
MD5 hash:
ca1bf7a76a9eaa257b3924f2546344b7
SHA1 hash:
ef6469824fa68e4dc16abd5553ded87eb5d7b9dc
Link:
https://www.unpac.me/results/c920690f-21d9-4b06-abde-75667d613566/
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/1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852

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:jeFF0Falltrades
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: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 1bf4fa05d7f12a5fccdc00603cd5c730ce0b9ab5c89b05202ee38c0f163c4852

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1973794/
Cape
Cape
https://www.capesandbox.com/analysis/218993/
  
URLhaus
https://urlhaus.abuse.ch/url/1975825/
  
URLhaus
https://urlhaus.abuse.ch/url/1975853/

Comments


Avatar
zbet commented on 2022-01-13 12:30:09 UTC

url : hxxp://tstzlx6fem2rrjd5blekndbj6nwvl5qff7hewzjxaqm2wxm3mk25qcyd.onion.ws/8888.exe