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Windows Analysis Report
17298331876234923754630425067_eccfa1bca3084c.rar

Overview

General Information

Sample name:17298331876234923754630425067_eccfa1bca3084c.rar
Analysis ID:1544360
MD5:2d93458e837aa214ad29fdbf6a49ddd2
SHA1:2e9b8f9899a4d0b010be03013d8cf28a52ead8a1
SHA256:eccfa1bca3084c87bdc6ff33932bcfec1efdca1305385149c143350909fa03f4
Infos:

Detection

Score:22
Range:0 - 100
Whitelisted:false
Confidence:40%

Signatures

Sigma detected: Suspicious Double Extension Files
Allocates memory with a write watch (potentially for evading sandboxes)
Creates a process in suspended mode (likely to inject code)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
May sleep (evasive loops) to hinder dynamic analysis
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Classification

  • System is w10x64
  • unarchiver.exe (PID: 6304 cmdline: "C:\Windows\SysWOW64\unarchiver.exe" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar" MD5: 16FF3CC6CC330A08EED70CBC1D35F5D2)
    • 7za.exe (PID: 3960 cmdline: "C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar" MD5: 77E556CDFDC5C592F5C46DB4127C6F4C)
      • conhost.exe (PID: 6808 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
  • cleanup
No configs have been found
No yara matches

System Summary

barindex
Source: File createdAuthor: Nasreddine Bencherchali (Nextron Systems), frack113: Data: EventID: 11, Image: C:\Windows\SysWOW64\7za.exe, ProcessId: 3960, TargetFilename: C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw\INQUIRY FOR NEW PO.JPG.exe
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results
Source: C:\Windows\SysWOW64\unarchiver.exeFile opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dllJump to behavior
Source: unknownDNS traffic detected: query: 241.42.69.40.in-addr.arpa replaycode: Name error (3)
Source: unknownDNS traffic detected: query: 212.20.149.52.in-addr.arpa replaycode: Name error (3)
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global trafficDNS traffic detected: DNS query: 241.42.69.40.in-addr.arpa
Source: global trafficDNS traffic detected: DNS query: 212.20.149.52.in-addr.arpa
Source: classification engineClassification label: sus22.winRAR@4/1@2/0
Source: C:\Windows\SysWOW64\unarchiver.exeMutant created: NULL
Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6808:120:WilError_03
Source: C:\Windows\SysWOW64\unarchiver.exeFile created: C:\Users\user\AppData\Local\Temp\unarchiver.logJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Source: unknownProcess created: C:\Windows\SysWOW64\unarchiver.exe "C:\Windows\SysWOW64\unarchiver.exe" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"
Source: C:\Windows\SysWOW64\unarchiver.exeProcess created: C:\Windows\SysWOW64\7za.exe "C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"
Source: C:\Windows\SysWOW64\7za.exeProcess created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\unarchiver.exeProcess created: C:\Windows\SysWOW64\7za.exe "C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: mscoree.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: apphelp.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: kernel.appcore.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: version.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: windows.storage.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: wldp.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: profapi.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: cryptsp.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: rsaenh.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeSection loaded: cryptbase.dllJump to behavior
Source: C:\Windows\SysWOW64\7za.exeSection loaded: 7z.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeFile opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeFile opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dllJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: F80000 memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: 2F10000 memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: 1280000 memory commit | memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeWindow / User API: threadDelayed 491Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeWindow / User API: threadDelayed 9478Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 3592Thread sleep count: 491 > 30Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 3592Thread sleep time: -245500s >= -30000sJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 3592Thread sleep count: 9478 > 30Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 3592Thread sleep time: -4739000s >= -30000sJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: page read and write | page guardJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeProcess created: C:\Windows\SysWOW64\7za.exe "C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuidJump to behavior
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management Instrumentation1
DLL Side-Loading
11
Process Injection
2
Virtualization/Sandbox Evasion
OS Credential Dumping2
Virtualization/Sandbox Evasion
Remote ServicesData from Local System1
Non-Application Layer Protocol
Exfiltration Over Other Network MediumAbuse Accessibility Features
CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization Scripts1
DLL Side-Loading
1
Disable or Modify Tools
LSASS Memory1
Application Window Discovery
Remote Desktop ProtocolData from Removable Media1
Application Layer Protocol
Exfiltration Over BluetoothNetwork Denial of Service
Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)11
Process Injection
Security Account Manager2
System Information Discovery
SMB/Windows Admin SharesData from Network Shared DriveSteganographyAutomated ExfiltrationData Encrypted for Impact
Employee NamesVirtual Private ServerLocal AccountsCronLogin HookLogin Hook1
DLL Side-Loading
NTDSSystem Network Configuration DiscoveryDistributed Component Object ModelInput CaptureProtocol ImpersonationTraffic DuplicationData Destruction
Hide Legend

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 dnsIp2 2 Behavior Graph ID: 1544360 Sample: 172983318762349237546304250... Startdate: 29/10/2024 Architecture: WINDOWS Score: 22 14 241.42.69.40.in-addr.arpa 2->14 16 212.20.149.52.in-addr.arpa 2->16 18 Sigma detected: Suspicious Double Extension Files 2->18 8 unarchiver.exe 4 2->8         started        signatures3 process4 process5 10 7za.exe 2 8->10         started        process6 12 conhost.exe 10->12         started       

This section contains all screenshots as thumbnails, including those not shown in the slideshow.


windows-stand
No Antivirus matches
No Antivirus matches
No Antivirus matches
No Antivirus matches
No Antivirus matches
NameIPActiveMaliciousAntivirus DetectionReputation
241.42.69.40.in-addr.arpa
unknown
unknownfalse
    unknown
    212.20.149.52.in-addr.arpa
    unknown
    unknownfalse
      unknown
      No contacted IP infos
      Joe Sandbox version:41.0.0 Charoite
      Analysis ID:1544360
      Start date and time:2024-10-29 10:19:18 +01:00
      Joe Sandbox product:CloudBasic
      Overall analysis duration:0h 5m 55s
      Hypervisor based Inspection enabled:false
      Report type:full
      Cookbook file name:default.jbs
      Analysis system description:Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
      Number of analysed new started processes analysed:17
      Number of new started drivers analysed:0
      Number of existing processes analysed:0
      Number of existing drivers analysed:0
      Number of injected processes analysed:0
      Technologies:
      • EGA enabled
      • AMSI enabled
      Analysis Mode:default
      Analysis stop reason:Timeout
      Sample name:17298331876234923754630425067_eccfa1bca3084c.rar
      Detection:SUS
      Classification:sus22.winRAR@4/1@2/0
      Cookbook Comments:
      • Override analysis time to 240000 for current running targets taking high CPU consumption
      • Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, SgrmBroker.exe, conhost.exe, backgroundTaskHost.exe, svchost.exe
      • Excluded domains from analysis (whitelisted): otelrules.azureedge.net, slscr.update.microsoft.com, ctldl.windowsupdate.com, time.windows.com, fe3cr.delivery.mp.microsoft.com
      • Not all processes where analyzed, report is missing behavior information
      • Report size getting too big, too many NtQueryValueKey calls found.
      • VT rate limit hit for: 17298331876234923754630425067_eccfa1bca3084c.rar
      TimeTypeDescription
      07:11:20API Interceptor3887180x Sleep call for process: unarchiver.exe modified
      No context
      No context
      No context
      No context
      No context
      Process:C:\Windows\SysWOW64\unarchiver.exe
      File Type:ASCII text, with CRLF line terminators
      Category:dropped
      Size (bytes):4220
      Entropy (8bit):5.001899831690984
      Encrypted:false
      SSDEEP:48:R8eG7OtG8tGb8tG8tGpmtGatG8tGpieGtbtGreGtGqtGsytG1tHtGBZtGIyHtG/f:OseX7yV4PuiA
      MD5:D4BC41630590EAC1239AAA90445667F6
      SHA1:1404BE7FDD2BC8F5E459B49F57B1F137A9AFE870
      SHA-256:E473E66DDA6CBF379910390921BE7414063E62BC20D7857B284C078569509E0E
      SHA-512:485CF055E5B072D99505F62FC1CE3B76B1AB3A3F1E605BFAEDF44BCB8B9D7E7C1830A0ED70C41B05DE8DA0C98D3C2201E975B76D181AE2924F214F090CC91E61
      Malicious:false
      Reputation:low
      Preview:10/29/2024 5:20 AM: Unpack: C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar..10/29/2024 5:20 AM: Tmp dir: C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw..10/29/2024 5:20 AM: Received from standard out: ..10/29/2024 5:20 AM: Received from standard out: 7-Zip 18.05 (x86) : Copyright (c) 1999-2018 Igor Pavlov : 2018-04-30..10/29/2024 5:20 AM: Received from standard out: ..10/29/2024 5:20 AM: Received from standard out: Scanning the drive for archives:..10/29/2024 5:20 AM: Received from standard out: 1 file, 970086 bytes (948 KiB)..10/29/2024 5:20 AM: Received from standard out: ..10/29/2024 5:20 AM: Received from standard out: Extracting archive: C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar..10/29/2024 5:20 AM: Received from standard error: ..10/29/2024 5:20 AM: Received from standard out: Path = C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar..10/29/2024 5:20 AM: Received from standard out: Type =
      File type:RAR archive data, v4, os: Win32
      Entropy (8bit):7.999643207559949
      TrID:
      • RAR Archive (5005/1) 83.31%
      • REALbasic Project (1003/3) 16.69%
      File name:17298331876234923754630425067_eccfa1bca3084c.rar
      File size:970'086 bytes
      MD5:2d93458e837aa214ad29fdbf6a49ddd2
      SHA1:2e9b8f9899a4d0b010be03013d8cf28a52ead8a1
      SHA256:eccfa1bca3084c87bdc6ff33932bcfec1efdca1305385149c143350909fa03f4
      SHA512:8fcb7ff418b74cb60af3ea6139ead3ca6a2995503f222c1467d172e89a7a366fb9513ac07f2b2196d0020ef89670c8cf8a51c94a8efbfd716c06b707a1227c02
      SSDEEP:12288:OL8xokopkV/CGQLrh59AasowdhTx0sq2HxDkoUZsHxOBwwAG9NHGHzOtA4Y1bAug:a8xoz8mfmTxcoDkoUAOBwwDQJ1Lsr
      TLSH:8E253323E91A54F6FDB755EB8EB2A04857E4120C9585233A995C18FFF72250A3333E1E
      File Content Preview:Rar!.....s...........St..=._....|........)YY.5.. ...INQUIRY FOR NEW PO.JPG.exe......U......0&I1.......4[..Q..D..$.&I.8..5$..)e+N..-FB@.c.R..-..../iZ[F...F.A....l.Ki.p.oN../R...8...Z.0!......}'..o.....Z....{.'7............".......Lr......s.6.P" ......'B...
      Icon Hash:90cececece8e8eb0
      TimestampSource PortDest PortSource IPDest IP
      Oct 29, 2024 10:20:47.934217930 CET5357158162.159.36.2192.168.2.7
      Oct 29, 2024 10:20:48.755589962 CET6001553192.168.2.71.1.1.1
      Oct 29, 2024 10:20:48.763916016 CET53600151.1.1.1192.168.2.7
      Oct 29, 2024 10:20:50.503365993 CET5481453192.168.2.71.1.1.1
      Oct 29, 2024 10:20:50.513870001 CET53548141.1.1.1192.168.2.7
      TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
      Oct 29, 2024 10:20:48.755589962 CET192.168.2.71.1.1.10xa827Standard query (0)241.42.69.40.in-addr.arpaPTR (Pointer record)IN (0x0001)false
      Oct 29, 2024 10:20:50.503365993 CET192.168.2.71.1.1.10xe281Standard query (0)212.20.149.52.in-addr.arpaPTR (Pointer record)IN (0x0001)false
      TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
      Oct 29, 2024 10:20:48.763916016 CET1.1.1.1192.168.2.70xa827Name error (3)241.42.69.40.in-addr.arpanonenonePTR (Pointer record)IN (0x0001)false
      Oct 29, 2024 10:20:50.513870001 CET1.1.1.1192.168.2.70xe281Name error (3)212.20.149.52.in-addr.arpanonenonePTR (Pointer record)IN (0x0001)false

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      Target ID:0
      Start time:05:20:12
      Start date:29/10/2024
      Path:C:\Windows\SysWOW64\unarchiver.exe
      Wow64 process (32bit):true
      Commandline:"C:\Windows\SysWOW64\unarchiver.exe" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"
      Imagebase:0x830000
      File size:12'800 bytes
      MD5 hash:16FF3CC6CC330A08EED70CBC1D35F5D2
      Has elevated privileges:true
      Has administrator privileges:true
      Programmed in:C, C++ or other language
      Reputation:high
      Has exited:false

      Target ID:1
      Start time:05:20:12
      Start date:29/10/2024
      Path:C:\Windows\SysWOW64\7za.exe
      Wow64 process (32bit):true
      Commandline:"C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\plvl2yqm.ftw" "C:\Users\user\Desktop\17298331876234923754630425067_eccfa1bca3084c.rar"
      Imagebase:0xd0000
      File size:289'792 bytes
      MD5 hash:77E556CDFDC5C592F5C46DB4127C6F4C
      Has elevated privileges:true
      Has administrator privileges:true
      Programmed in:C, C++ or other language
      Reputation:high
      Has exited:true

      Target ID:2
      Start time:05:20:12
      Start date:29/10/2024
      Path:C:\Windows\System32\conhost.exe
      Wow64 process (32bit):false
      Commandline:C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
      Imagebase:0x7ff75da10000
      File size:862'208 bytes
      MD5 hash:0D698AF330FD17BEE3BF90011D49251D
      Has elevated privileges:true
      Has administrator privileges:true
      Programmed in:C, C++ or other language
      Reputation:high
      Has exited:true

      No disassembly