MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a. 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


Arechclient2


Vendor detections: 9


Intelligence 9 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a
SHA3-384 hash: 533a212e82d49ddc21839ff58fb6792cec7dd2bc7807ca18dcbe73fdba20d48965a5b3f57f1cdd7fa7c5ea16964387a3
SHA1 hash: 747b277cd5bb37e719877e45864f3beedc949f06
MD5 hash: fbad39a4e69da1cc3bf48541c7905d4c
humanhash: may-eleven-bulldog-happy
File name:WNBOZYUN.msi
Download: download sample
Signature Arechclient2
Create hunting rule
File size:24'659'924 bytes
First seen:2025-04-09 13:14:46 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:/W/NUkyHnX2H4hsNAW+X8XPCNzllXzYEj3Jl0kj386l4ClxDRpIqX:JDHnXA4hsNAdX8XPCNJnZT4i+qX
TLSH T15E478D32B368D132D0CB163A1DAAE568C63969554A32D006B6E40AFDDDB29C0773F71F
TrID 53.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
39.2% (.MSP) Windows Installer Patch (44509/10/5)
7.0% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter JAMESWT_WT
Tags:Arechclient2 bestieslos-com cdn-jsdelivr-net msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
IT IT
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/1362/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f675fef9ba909217cddacc
Tags:
n/a
Verdict:
Malicious
Labled as:
Generik.IJTSTKH trojan
Link:
https://www.hybrid-analysis.com/sample/923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a
Result
Threat name:
RedLine, SectopRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1626773
Signature
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected RedLine Stealer
Yara detected SectopRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1626773 Sample: WNBOZYUN.msi Startdate: 28/02/2025 Architecture: WINDOWS Score: 100 75 Suricata IDS alerts for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for dropped file 2->79 81 7 other signatures 2->81 10 msiexec.exe 2->10         started        12 RoboTaskLite.exe 2->12         started        15 msiexec.exe 7 2->15         started        process3 file4 18 msiexec.exe 55 10->18         started        105 Maps a DLL or memory area into another process 12->105 107 Found direct / indirect Syscall (likely to bypass EDR) 12->107 21 cmd.exe 12->21         started        69 C:\Users\user\AppData\Local\...\MSIF1FF.tmp, PE32 15->69 dropped 71 C:\Users\user\AppData\Local\...\MSIEBB5.tmp, PE32 15->71 dropped signatures5 process6 file7 51 C:\Users\user\AppData\...\_isres_0x0409.dll, PE32 18->51 dropped 53 C:\Users\user\AppData\Local\Temp\...\ISRT.dll, PE32 18->53 dropped 55 C:\Users\user\AppData\Local\...\ISBEW64.exe, PE32+ 18->55 dropped 59 3 other malicious files 18->59 dropped 24 RoboTaskLite.exe 6 18->24         started        28 ISBEW64.exe 18->28         started        30 ISBEW64.exe 18->30         started        36 8 other processes 18->36 57 C:\Users\user\AppData\Local\Temp\nxscuox, PE32 21->57 dropped 83 Writes to foreign memory regions 21->83 85 Maps a DLL or memory area into another process 21->85 32 conhost.exe 21->32         started        34 MSBuild.exe 21->34         started        signatures8 process9 file10 61 C:\Users\user\AppData\Roaming\...\vcl280.bpl, PE32 24->61 dropped 63 C:\Users\user\AppData\Roaming\...\rtl280.bpl, PE32 24->63 dropped 65 C:\Users\user\AppData\...\RoboTaskLite.exe, PE32 24->65 dropped 93 Switches to a custom stack to bypass stack traces 24->93 95 Found direct / indirect Syscall (likely to bypass EDR) 24->95 38 RoboTaskLite.exe 1 24->38         started        signatures11 process12 signatures13 87 Maps a DLL or memory area into another process 38->87 89 Switches to a custom stack to bypass stack traces 38->89 91 Found direct / indirect Syscall (likely to bypass EDR) 38->91 41 cmd.exe 4 38->41         started        process14 file15 67 C:\Users\user\AppData\Local\Temp\oby, PE32 41->67 dropped 97 Writes to foreign memory regions 41->97 99 Found hidden mapped module (file has been removed from disk) 41->99 101 Maps a DLL or memory area into another process 41->101 103 Switches to a custom stack to bypass stack traces 41->103 45 MSBuild.exe 15 28 41->45         started        49 conhost.exe 41->49         started        signatures16 process17 dnsIp18 73 92.255.85.23, 15847, 49720, 49721 SOVTEL-ASRU Russian Federation 45->73 109 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 45->109 111 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 45->111 113 Tries to harvest and steal browser information (history, passwords, etc) 45->113 115 Tries to steal Crypto Currency Wallets 45->115 signatures19
Gathering data
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-02-26 21:41:19 UTC
File Type:
Binary (Archive)
Extracted files:
44
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=si7pwrsxr57tdkltj3a5pz7bxhw7cvqp5rknommrpgvfdtz52jva._file
Result
Malware family:
sectoprat
Create hunting rule
Score:
  10/10
Tags:
family:hijackloader family:sectoprat discovery persistence privilege_escalation rat spyware trojan
Link:
https://tria.ge/reports/250409-qhegza1wfy/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Enumerates connected drives
SectopRAT
SectopRAT payload
Sectoprat family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/54e5b471-36a4-4011-b4db-ec30a446d6e8
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/923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a

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:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Arechclient2

Microsoft Software Installer (MSI) msi 923efb46578f7f31a9734ec1d7e7e1b9edf1560fec54d7319179aa51cf3dd26a

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/1362/
  
URLhaus
https://urlhaus.abuse.ch/url/3505510/
  
Delivery method
Distributed via web download

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