MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f
SHA3-384 hash: b287ecd523ff6cc5dc5af3af2d6cba62bc25273de5c85e40e4cd744a9693a4e19d4680b995cde4e4a619462d96dc0f6c
SHA1 hash: 4e72fa2dc0ec1b4801349b26ae27e709fd6116bf
MD5 hash: 54a845d014ec7c68b5bdbc599f9df919
humanhash: pizza-lemon-salami-hamper
File name:64th Services.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:13'682'688 bytes
First seen:2025-07-08 19:08:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5c30250a58f8361f3685bafbae70623f (3 x AsyncRAT)
ssdeep 393216:LmECSQl2wty43BoimXUmSEjcTQwquAP5DXaa:Lm/2wY4RcrcPAP5DR
Threatray 1'652 similar samples on MalwareBazaar
TLSH T1B5D622E8549522E0D4E20780718B53CE71E026AE85FC5E2C7DE66D420F42EBF754DEAB
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter burger
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
36
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
64thServices.exe
Verdict:
Malicious activity
Analysis date:
2025-07-08 19:02:06 UTC
Tags:
github loader confuser
Link:
https://app.any.run/tasks/7dae4703-c169-4d9b-8e97-24366952a237

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/13546/
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686d6ce8900df8e7f868a16d
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process with a hidden window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the system32 directory
Creating a process from a recently created file
Сreating synchronization primitives
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Creating a file
Running batch commands
Launching a process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/acfc6c6c-a4bc-4c5d-bab6-8c3c17f0b387
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1731306
Signature
Adds a directory exclusion to Windows Defender
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Suspicious powershell command line found
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
Yara detected Costura Assembly Loader
Yara detected DcRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1731306 Sample: 64th Services.exe Startdate: 08/07/2025 Architecture: WINDOWS Score: 100 61 raw.githubusercontent.com 2->61 63 prod.keyauth.com 2->63 65 3 other IPs or domains 2->65 75 Suricata IDS alerts for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 13 other signatures 2->81 10 64th Services.exe 9 2->10         started        15 svchost.exe 2->15         started        signatures3 process4 dnsIp5 69 github.com 140.82.114.4, 443, 49681, 49686 GITHUBUS United States 10->69 71 raw.githubusercontent.com 185.199.111.133, 443, 49685, 49687 FASTLYUS Netherlands 10->71 57 C:\Windows\System32\vzlxxlzr.exe, PE32+ 10->57 dropped 107 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 10->107 109 Suspicious powershell command line found 10->109 111 Drops executables to the windows directory (C:\Windows) and starts them 10->111 113 2 other signatures 10->113 17 vzlxxlzr.exe 14 9 10->17         started        22 powershell.exe 23 10->22         started        24 conhost.exe 10->24         started        73 127.0.0.1 unknown unknown 15->73 file6 signatures7 process8 dnsIp9 59 keyauth.win 104.26.1.5, 443, 49688 CLOUDFLARENETUS United States 17->59 51 C:\Users\user\...\Microsoft.ServiceHub.exe, PE32 17->51 dropped 83 Multi AV Scanner detection for dropped file 17->83 85 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 17->85 87 Found direct / indirect Syscall (likely to bypass EDR) 17->87 26 Microsoft.ServiceHub.exe 8 17->26         started        89 Loading BitLocker PowerShell Module 22->89 30 WmiPrvSE.exe 22->30         started        32 conhost.exe 22->32         started        file10 signatures11 process12 file13 53 C:\...\Microsoft.ServiceHub.Controller.exe, PE32 26->53 dropped 55 C:\Users\...\Microsoft.ServiceHub.exe.log, CSV 26->55 dropped 101 Multi AV Scanner detection for dropped file 26->101 103 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 26->103 105 Queries memory information (via WMI often done to detect virtual machines) 26->105 34 cmd.exe 1 26->34         started        36 cmd.exe 1 26->36         started        signatures14 process15 signatures16 39 Microsoft.ServiceHub.Controller.exe 1 3 34->39         started        43 conhost.exe 34->43         started        45 timeout.exe 1 34->45         started        91 Uses schtasks.exe or at.exe to add and modify task schedules 36->91 47 conhost.exe 36->47         started        49 schtasks.exe 1 36->49         started        process17 dnsIp18 67 157.97.11.134, 49691, 8080 NOVAIS-ASIS Iceland 39->67 93 Multi AV Scanner detection for dropped file 39->93 95 Detected unpacking (changes PE section rights) 39->95 97 Detected unpacking (overwrites its own PE header) 39->97 99 Queries memory information (via WMI often done to detect virtual machines) 39->99 signatures19
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PE (Portable Executable) Win 64 Exe x64
Link:
https://app.malva.re/file/54a845d014ec7c68b5bdbc599f9df919
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f/
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-07-08 19:02:06 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=on7vfzbkfa3d5rawl5y52qm5rlumiy4br74bqhtv3xwk3s4r6qpq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0a5bb6b29e70f99c51cc97726ceab44771dca068cc5d56780c9abf71662bb287
AsyncRAT
477b7ca79a38c02c05947934ca8d0a5d5946c114493c8e351cdb040e29272006
AsyncRAT
6688df50d8f852b1190ccf68bff4be905cbf433080b2a02550a7c9050632ef7b
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89990966e7fd361dd449c1e8e05ecf8e4c7dcd557d6c354dda2c8b7e8fa6b5d6
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8f7bd69ee6113b7d92af4e393bc2d1acee4531f10691c0d1c7aab15f19f424e6
AsyncRAT
9a471a4882c0059d8b0d39210937e0f0523322b698798b854b7956c4faa45ad2
AsyncRAT
ade883f98d4d4019c879d81e22be84b2f63798367db9aaefc1ee9525d0f96a9c
AsyncRAT
d9099dc0e0b217beca26b3d9074df946a34bd5cad3b6bba5e1473b5395de927b
AsyncRAT
e81399eeff92b6604fb10f90166f441ac8ad3c778d0d1d554311cc67c927922e
AsyncRAT
ed03d68d1696cca4c7e5345f3abbb856762e7c24923bc8f9eb68924c53af1832
AsyncRAT
error
AsyncRAT
+ 1'642 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/250708-xtyhjswyas/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
ConfuserEx .NET packer
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/781da81e-8ac7-4fea-95c3-de4fb6cde1fe
Unpacked files
SH256 hash:
737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f
MD5 hash:
54a845d014ec7c68b5bdbc599f9df919
SHA1 hash:
4e72fa2dc0ec1b4801349b26ae27e709fd6116bf
Link:
https://www.unpac.me/results/f2db08f0-f0cf-4cc8-ba40-11697d9c014e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
Link:
https://yomi.yoroi.company/submissions/737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Executable exe 737f52e42a28363ec4165f71dd419d8ae8c463818ff8181e75ddecadcb91f41f

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/13546/

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsWININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryA

Comments