MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f. 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: 16


Intelligence 16 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f
SHA3-384 hash: a81fb9a83ae8dd21359402d396efc2f82c22838aa2a45b393e140ac1e8a2281cf7db74e4c7ca2ce8c5847082ea0cde22
SHA1 hash: c4976290e6ec103671e7709abbed1a92c7c9b0a2
MD5 hash: 2b953a27fe875c8394d05347a5d11d14
humanhash: stream-saturn-carpet-oranges
File name:2b953a27fe875c8394d05347a5d11d14.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:112'128 bytes
First seen:2024-05-17 14:55:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 3072:Foiy0nuMAXQF6PIZEDlY+9TXxzQ+HsKWbmFq5:Foinzot84umF
TLSH T119B302E1B7785221ECF64F711EAA3F0237E885022697562C7C85889F2D85F770F41ADA
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
3.125.209.94:15221

Intelligence

File Origin
# of uploads :
1
# of downloads :
464
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f.exe
Verdict:
Malicious activity
Analysis date:
2024-05-17 14:58:14 UTC
Tags:
rat asyncrat remote
Link:
https://app.any.run/tasks/d087ceb7-a193-4a7d-9b24-6ffa4ecdf731

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Razy-7334624-0
Create hunting rule

ditekSHen.INDICATOR.Packed.NyanXCAT-CSharpLoader.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Restart of the analyzed sample
Creating a file
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
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
limecrypter packed packed
Link:
https://www.filescan.io/uploads/664770053313f70f0afe30fe/reports/098e5978-f30e-4c13-ad66-fe56b515b2f2/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f
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/cccce614-9e70-45c2-8128-64e9eb58b084
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1443368
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
Connects to a pastebin service (likely for C&C)
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
Protects its processes via BreakOnTermination flag
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Snort IDS alert for network traffic
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 dnsIp2 2 Behavior Graph ID: 1443368 Sample: mSrkZ4yTXx.exe Startdate: 17/05/2024 Architecture: WINDOWS Score: 100 41 pastebin.com 2->41 43 0.tcp.eu.ngrok.io 2->43 45 bg.microsoft.map.fastly.net 2->45 55 Snort IDS alert for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 63 11 other signatures 2->63 10 mSrkZ4yTXx.exe 3 2->10         started        13 Fluxus Folder.exe 3 2->13         started        signatures3 61 Connects to a pastebin service (likely for C&C) 41->61 process4 signatures5 67 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->67 15 mSrkZ4yTXx.exe 6 10->15         started        19 Fluxus Folder.exe 15 2 13->19         started        process6 dnsIp7 39 C:\Users\user\AppData\...\Fluxus Folder.exe, PE32 15->39 dropped 53 Protects its processes via BreakOnTermination flag 15->53 22 cmd.exe 1 15->22         started        25 cmd.exe 1 15->25         started        47 pastebin.com 172.67.19.24, 443, 49704, 49712 CLOUDFLARENETUS United States 19->47 49 0.tcp.eu.ngrok.io 18.158.249.75, 15221, 49705, 49713 AMAZON-02US United States 19->49 51 3 other IPs or domains 19->51 file8 signatures9 process10 signatures11 65 Uses schtasks.exe or at.exe to add and modify task schedules 22->65 27 conhost.exe 22->27         started        29 schtasks.exe 1 22->29         started        31 Fluxus Folder.exe 2 25->31         started        33 conhost.exe 25->33         started        35 timeout.exe 1 25->35         started        process12 process13 37 Fluxus Folder.exe 31->37         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-05-13 13:02:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kawv6xcbdipo5q22q5btnmzngvicvozrv7jafllgxwnsxq2bgb7q._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/240517-sa1fksda56/
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
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
AsyncRat
Unpacked files
SH256 hash:
3453c4ac643f89da208544643817408c0bb9e1c129ce6c79f1d6479ab8c35917
MD5 hash:
38cc0579e259d036ac3fe8d107904316
SHA1 hash:
730c2d1220359d2b0d2826a54a1eaa35bc05e678
Link:
https://www.unpac.me/results/04a4516c-8852-446f-8783-337a6a9277dd/
SH256 hash:
b830f98000e7bdd82014dd4de802c2d67f19cf7d12a35acff83b0b098b7f30c0
MD5 hash:
f27edffc8b2f8799d6d104b66211e5da
SHA1 hash:
2819425008621b33a389b49c56955e5a805e9376
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
asyncrat
Create hunting rule
Link:
https://www.unpac.me/results/04a4516c-8852-446f-8783-337a6a9277dd/
SH256 hash:
502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f
MD5 hash:
2b953a27fe875c8394d05347a5d11d14
SHA1 hash:
c4976290e6ec103671e7709abbed1a92c7c9b0a2
Detections:
INDICATOR_EXE_Packed_NyanXCat_CSharpLoader
Create hunting rule
Link:
https://www.unpac.me/results/04a4516c-8852-446f-8783-337a6a9277dd/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/502d5f5c411a/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/502d5f5c411a1eeec35a874336b32d35502abb31afd202ad66bd9b2bc341307f

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_EXE_Packed_NyanXCat_CSharpLoader
Create hunting rule
Author:ditekSHen
Description:Detects .NET executables utilizing NyanX-CAT C# Loader
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: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: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_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