MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7. 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 25 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7
SHA3-384 hash: 5aae895b09855a125e12fae3fc8340f5c61c803b8ca22067fa4f5660967c12c4698038d313e3c1a92972703f90a35060
SHA1 hash: 5cd48e0e4bedd24a627c3a1a94dffe0107106a9c
MD5 hash: 76ec073ab9d346e83f4d51c6e4b0bf6e
humanhash: nitrogen-aspen-mango-floor
File name:AsyncClient.exe.bin
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:46'080 bytes
First seen:2025-03-13 13:35:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:OuwvNT8E2mLWU3FvZmo2q7cKjPGaG6PIyzjbFgX3iKWFTb+8h6JmzBDZex:OuwvNT8xk2JKTkDy3bCXSdb+6dex
TLSH T1DA232C103BE9822BF2BE4F749CF26145867AF6632603D54D1CC441DB5A13FC69A426FE
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter KatzenTech
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
378
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
AsyncClient.exe
Verdict:
Malicious activity
Analysis date:
2025-03-13 12:01:43 UTC
Tags:
autorun-reg asyncrat
Link:
https://app.any.run/tasks/4b5e065f-507f-4040-a4d4-e262bc11fd74

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d2c9263962f1a6f470cc0e
Tags:
asyncrat autorun
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
Connection attempt
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 config-extracted lolbin masquerade njrat obfuscated rat reconnaissance reg schtasks vbnet
Link:
https://www.filescan.io/uploads/67d2df563c5f644bd951d0e4/reports/f14fdda5-4538-4cbc-94b3-6deb61044b7c/overview
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/882fae5b-61ad-4c74-b7e0-5e01e5723b4e
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1637329
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 1637329 Sample: AsyncClient.exe.bin.exe Startdate: 13/03/2025 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for dropped file 2->41 43 9 other signatures 2->43 8 AsyncClient.exe.bin.exe 7 2->8         started        11 HD Realtek Audio.exe 2 2->11         started        process3 dnsIp4 31 C:\Users\user\...\HD Realtek Audio.exe, PE32 8->31 dropped 33 C:\Users\user\...\AsyncClient.exe.bin.exe.log, ASCII 8->33 dropped 14 cmd.exe 1 8->14         started        17 cmd.exe 1 8->17         started        35 127.0.0.1 unknown unknown 11->35 file5 process6 signatures7 45 Uses schtasks.exe or at.exe to add and modify task schedules 14->45 19 conhost.exe 14->19         started        21 schtasks.exe 1 14->21         started        23 conhost.exe 17->23         started        25 HD Realtek Audio.exe 3 17->25         started        27 timeout.exe 1 17->27         started        process8 process9 29 conhost.exe 23->29         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRat
Create hunting rule
Status:
Malicious
First seen:
2025-03-13 12:01:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2eocuo5cvpojjkzudycvqa7ohxvslorpzlv76byrk4hddifrs23q._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery rat
Link:
https://tria.ge/reports/250313-qwby1atwgx/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
Verdict:
Malicious
Tags:
rat asyncrat Win.Packed.Razy-9625918-0
YARA:
malware_asyncrat asyncrat AsyncRat_Payload win_asyncrat_unobfuscated JPCERTCC_Asyncrat Windows_Generic_Threat_ce98c4bc
Link:
https://app.threat.zone/submission/d51036cd-283f-4eab-8de5-0d48cf16abc1
Unpacked files
SH256 hash:
d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7
MD5 hash:
76ec073ab9d346e83f4d51c6e4b0bf6e
SHA1 hash:
5cd48e0e4bedd24a627c3a1a94dffe0107106a9c
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/60868228-408d-4eb3-9aba-7f1d76c05182/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d11c2a3ba2ab/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/d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7

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:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:asyncrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
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:Mal_WIN_AsyncRat_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect AsyncRAT implant.
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_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments


Avatar
commented on 2025-03-13 13:40:50 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "d11c2a3ba2abdc94ab341e055803ee3deb25ba2fcaebff0711570e31a0b196b7",
"yara_possible_family": "asyncrat",
"key": "d68f63c789ff1404fe1ca7ce3fdcc0667f49e0f076e8d0801b630f55d25c4c61",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"Ports": [
"6606",
"7707",
"8808"
],
"Hosts": [
"127.0.0.1"
],
"Version": "0.5.8",
"Install": "true",
"InstallFolder": "%AppData%",
"InstallFile": "HD Realtek Audio.exe",
"Key": "c1dEMVRwZ1hGTzhRSm9yZzdhVDZHS2xvaVEwaWZPN20=",
"Mutex": "8Z4sGOJEAVc9",
"Certificate": "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",
"Serversignature": "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",
"Anti": "false",
"Pastebin": "null",
"BDOS": "false",
"Hwid": "null",
"Delay": "3",
"Group": "Default"
}
}