MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23f66a4b5f6fd2f6f87715588d259ef6f251d1f4acb0ade40e9662d549962783. 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 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23f66a4b5f6fd2f6f87715588d259ef6f251d1f4acb0ade40e9662d549962783
SHA3-384 hash: 7b35cbf174162ed66ee03c51928b9f140c7251ebfb3c64e80d08c4e2924a3227cbe7a65f1c3cc5dce0ae5b6cae07ad46
SHA1 hash: 5368e7f0a6858aa6c38a1b1b164c60cf2cc8ab5e
MD5 hash: 2660d9c452151cd90432e72a653e04ea
humanhash: timing-alanine-stairway-glucose
File name:2660d9c452151cd90432e72a653e04ea.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:329'216 bytes
First seen:2021-05-11 18:00:37 UTC
Last seen:2021-05-11 18:47:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 6144:PKIEATjx6AXpvPv3TTPKaASIhX3bnw2J1qLXXrlXOlv:yIEAwCPXi9FV0zs
Threatray 93 similar samples on MalwareBazaar
TLSH BE64E02D32F1C567D7AA47348EE2FA6422F6FCA1792C7247F461F35F1A3A2858052394
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
194.5.97.116:5578

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
194.5.97.116:5578 https://threatfox.abuse.ch/ioc/35594/

Intelligence

File Origin
# of uploads :
2
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/155198/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.724.3392.30356.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Creating a window
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
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.
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/778943
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 411340 Sample: 5lQuLT5Zu8.exe Startdate: 11/05/2021 Architecture: WINDOWS Score: 100 37 clientconfig.passport.net 2->37 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 6 other signatures 2->45 9 5lQuLT5Zu8.exe 4 8 2->9         started        signatures3 process4 file5 25 C:\Users\user\AppData\Local\portprox.exe, PE32 9->25 dropped 27 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\...\zPiydeqdcrucq.vbs, ASCII 9->29 dropped 31 C:\Users\user\AppData\...\5lQuLT5Zu8.exe.log, ASCII 9->31 dropped 47 Creates an undocumented autostart registry key 9->47 49 Writes to foreign memory regions 9->49 51 Allocates memory in foreign processes 9->51 53 Injects a PE file into a foreign processes 9->53 13 wscript.exe 1 9->13         started        16 RegAsm.exe 2 9->16         started        19 RegAsm.exe 9->19         started        signatures6 process7 dnsIp8 55 Wscript starts Powershell (via cmd or directly) 13->55 57 Adds a directory exclusion to Windows Defender 13->57 21 powershell.exe 25 13->21         started        33 jrandjcpa.org 194.5.97.116, 49735, 5578 DANILENKODE Netherlands 16->33 35 192.168.2.1 unknown unknown 16->35 signatures9 process10 process11 23 conhost.exe 21->23         started       
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/23f66a4b5f6fd2f6f87715588d259ef6f251d1f4acb0ade40e9662d549962783/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-05-11 12:44:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
24 of 47 (51.06%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ep3gus27n7jpn6dxcvmi2jm663zfdupuvsyk3zaoszrnksmwe6bq._file
Verdict:
unknown
Similar samples:
19f17d84c67985de677ea0f746955f709106d8833311d3b8c9b67491d0498ff0
AsyncRAT
7896351788339988b9b403860c4161eda752a7e9f2f14a22667fb2a3026bedf7
AsyncRAT
78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
AsyncRAT
a59fbc4f9903ed18c989e87bc83073b463310ffe6c90a43c53400739719d0aae
AsyncRAT
ad1e33b11bfc9e62d3694096c14296d5576db318d976dd2226e8c43645e153e9
AsyncRAT
b33514e7b334b8aee694323114c7d2694f3cdb49c7614291ca8f064c23ff8542
AsyncRAT
b87b28a8f83442cb616dd3da7e520617a8b57280ca0098fb3721d6142978cc5f
AsyncRAT
c3bf2dd2d53f2ac2dcf5e59aa8d234efdf24fb7f5eca9e2a9cb1a4536979bed4
AsyncRAT
e295db3f673745f6e7a9de653c3e7648eadb10702144b2542bf699c607efb8b1
AsyncRAT
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
AsyncRAT
+ 83 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/210511-p1pfskjlrs/
Behaviour
Modifies registry class
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
Async RAT payload
AsyncRat
Modifies WinLogon for persistence
Malware Config
C2 Extraction:
jrandjcpa.org:5578
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/23f66a4b5f6fd2f6f87715588d259ef6f251d1f4acb0ade40e9662d549962783

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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
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:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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/155198/

Comments