MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689. 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: 19


Intelligence 19 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689
SHA3-384 hash: 40374366731158a8a6e7741aa2c5ad041f9ac6e73a313c6e2c0cf3ffb718d6b8c41a046345d8ba9a061af23d8f7128e1
SHA1 hash: 9e20a3adafae671ac6bef36be6c4dc7fb921a417
MD5 hash: 5a40a73a8b5a72bc3ad6da4e901b6633
humanhash: cola-sodium-maryland-undress
File name:8F461AD2F56D31807CE169C29D0C6208E92250ECEE6C3.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'080 bytes
First seen:2023-11-02 20:15:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 768:buq49T944nD5WUxiVDmo2qrjKjGKG6PIyzjbFgX3iiXjPnweP1rFBDZrx:buq49T9xy2uKYDy3bCXSiXj/wePZLdrx
TLSH T1CB232B003BE8822BF2BE4F78ADF26145467AF2636603D54A1CC451DB5613FC69A436FE
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
181.90.42.189:7707

Intelligence

File Origin
# of uploads :
1
# of downloads :
373
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
8F461AD2F56D31807CE169C29D0C6208E92250ECEE6C3.exe
Verdict:
Malicious activity
Analysis date:
2023-11-02 20:46:43 UTC
Tags:
asyncrat rat remote
Link:
https://app.any.run/tasks/33a174dd-6097-4664-89c5-5713b8606740

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/457842/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
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
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat asyncrat config-extracted fareit lolbin njrat packed rat razy reg replace schtasks
Link:
https://www.filescan.io/uploads/65440386b95974e82229e846/reports/a5dc41d1-ccd4-442e-a3e6-d03522130728/overview
Verdict:
Malicious
Labled as:
Backdoo.FB32B6C0
Link:
https://www.hybrid-analysis.com/sample/8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689
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/02853fbb-cd56-4f76-8a62-1f01fd8522c5
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336232
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
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
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1336232 Sample: 8F461AD2F56D31807CE169C29D0... Startdate: 02/11/2023 Architecture: WINDOWS Score: 100 32 pibirat.ddns.net 2->32 34 fhfgjghkgh.ddns.net 2->34 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 7 other signatures 2->46 8 asc.exe 2 2->8         started        12 8F461AD2F56D31807CE169C29D0C6208E92250ECEE6C3.exe 7 2->12         started        signatures3 process4 dnsIp5 36 pibirat.ddns.net 181.90.42.189, 49713, 49714, 49719 TelecomArgentinaSAAR Argentina 8->36 38 fhfgjghkgh.ddns.net 190.191.22.253, 7707, 8808 TelecomArgentinaSAAR Argentina 8->38 48 Antivirus detection for dropped file 8->48 50 Multi AV Scanner detection for dropped file 8->50 52 Machine Learning detection for dropped file 8->52 30 C:\Users\user\AppData\Roaming\asc.exe, PE32 12->30 dropped 15 cmd.exe 1 12->15         started        18 cmd.exe 1 12->18         started        file6 signatures7 process8 signatures9 54 Uses schtasks.exe or at.exe to add and modify task schedules 15->54 20 conhost.exe 15->20         started        22 schtasks.exe 1 15->22         started        24 asc.exe 3 18->24         started        26 conhost.exe 18->26         started        28 timeout.exe 1 18->28         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-11-01 23:43:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r5dbvuxvnuyya7hbnhbj2ddcbduseuhm5zwdmrxakagk64bke2eq._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/231102-y14tksgh54/
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
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
pibirat.ddns.net:6606
pibirat.ddns.net:7707
pibirat.ddns.net:8808
fhfgjghkgh.ddns.net:6606
fhfgjghkgh.ddns.net:7707
fhfgjghkgh.ddns.net:8808
Unpacked files
SH256 hash:
8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689
MD5 hash:
5a40a73a8b5a72bc3ad6da4e901b6633
SHA1 hash:
9e20a3adafae671ac6bef36be6c4dc7fb921a417
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/b6fe4e5f-ab05-45bb-a1b2-011a51cf317f/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f461ad2f56d/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/8f461ad2f56d31807ce169c29d0c6208e92250ecee6c3646e0500caf702a2689

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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
Description:detect AsyncRat in memory
Reference:https://github.com/NYAN-x-CAT/AsyncRAT-C-Sharp
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:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_bytecodes
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytecodes present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)
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/457842/

Comments