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Windows Analysis Report
MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip

Overview

General Information

Sample name:MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip
Analysis ID:1711321
Has dependencies:false
MD5:69df6d69eec94f2b5aa9bafc914c5e1b
SHA1:b2d7e97de1cd2e4c40334a9ff22a7a5cfd2c7042
SHA256:e07e3f223e7a0bbc38635c19e686d9017405b20a47bee83ae655bf7eba7713ab
Infos:

Detection

Score:22
Range:0 - 100
Confidence:60%

Signatures

Sigma detected: Files With System Process Name In Unsuspected Locations
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

Classification

  • System is w10x64
  • unarchiver.exe (PID: 6240 cmdline: "C:\Windows\SysWow64\unarchiver.exe" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip" MD5: 16FF3CC6CC330A08EED70CBC1D35F5D2)
    • 7za.exe (PID: 6320 cmdline: "C:\Windows\System32\7za.exe" x -pinfected -y -o"C:\Users\user\AppData\Local\Temp\s1im4k2h.s1l" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip" MD5: 77E556CDFDC5C592F5C46DB4127C6F4C)
      • conhost.exe (PID: 6336 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
  • cleanup
No reasoning have been found
No configs have been found
No yara matches

System Summary

barindex
Source: File createdAuthor: Sander Wiebing, Tim Shelton, Nasreddine Bencherchali (Nextron Systems): Data: EventID: 11, Image: C:\Windows\SysWOW64\7za.exe, ProcessId: 6320, TargetFilename: C:\Users\user\AppData\Local\Temp\s1im4k2h.s1l\SearchProtocolHost.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: classification engineClassification label: sus22.winZIP@4/1@0/0
Source: C:\Windows\SysWOW64\unarchiver.exeMutant created: NULL
Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6336:120: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\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"
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\s1im4k2h.s1l" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"
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\s1im4k2h.s1l" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"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.exeMemory allocated: 1930000 memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: 35D0000 memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeMemory allocated: 55D0000 memory commit | memory reserve | memory write watchJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeWindow / User API: threadDelayed 1546Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exeWindow / User API: threadDelayed 8425Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 6508Thread sleep count: 1546 > 30Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 6508Thread sleep time: -773000s >= -30000sJump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 6508Thread sleep count: 8425 > 30Jump to behavior
Source: C:\Windows\SysWOW64\unarchiver.exe TID: 6508Thread sleep time: -4212500s >= -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\s1im4k2h.s1l" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"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 SystemData ObfuscationExfiltration 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 MediaJunk DataExfiltration 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 signatures2 2 Behavior Graph ID: 1711321 Sample: MDE_File_Sample_9325dd111d7... Startdate: 10/06/2025 Architecture: WINDOWS Score: 22 13 Sigma detected: Files With System Process Name In Unsuspected Locations 2->13 7 unarchiver.exe 4 2->7         started        process3 process4 9 7za.exe 2 7->9         started        process5 11 conhost.exe 9->11         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
No contacted domains info
No contacted IP infos
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1711321
Start date and time:2025-06-10 19:24:16 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 6m 12s
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 134, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:16
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:MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip
Detection:SUS
Classification:sus22.winZIP@4/1@0/0
Cookbook Comments:
  • Found application associated with file extension: .zip
  • Override analysis time to 240000 for current running targets taking high CPU consumption
  • Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, sppsvc.exe, WMIADAP.exe, SIHClient.exe, SgrmBroker.exe, conhost.exe, svchost.exe
  • Excluded IPs from analysis (whitelisted): 23.204.23.20
  • Excluded domains from analysis (whitelisted): fs.microsoft.com, slscr.update.microsoft.com, ctldl.windowsupdate.com, c.pki.goog, 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.
TimeTypeDescription
13:25:45API Interceptor4099912x 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):3378
Entropy (8bit):5.037267273708766
Encrypted:false
SSDEEP:48:HrZVAwZn/Gm/Gbm/Gm/GpY/G4F/Gm/Gpb/Gb0/Gw/Gu/G1/Gm/Gm/Gmr/Gm/GR/B:1q8IhhDh2hkgS
MD5:C9177B5B20139F6B789E7EC405664B0B
SHA1:40530BCCDB228C705158AAC38488BB3AC914AFA9
SHA-256:5043F44C7E0922068C44CD97C385D0C5CCB5685896C106D2BD35E81DE8545A03
SHA-512:658CE857004220743BC8E6BF0D6DB58827D490DB93E311E29EFC1C0AB1F0374B4952CE28DB0644B92A235DDDCBABD868811553FDC5623E0DEA8CDD8E59B9C793
Malicious:false
Reputation:low
Preview:06/10/2025 1:25 PM: Unpack: C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip..06/10/2025 1:25 PM: Tmp dir: C:\Users\user\AppData\Local\Temp\s1im4k2h.s1l..06/10/2025 1:25 PM: Received from standard out: ..06/10/2025 1:25 PM: Received from standard out: 7-Zip 18.05 (x86) : Copyright (c) 1999-2018 Igor Pavlov : 2018-04-30..06/10/2025 1:25 PM: Received from standard out: ..06/10/2025 1:25 PM: Received from standard out: Scanning the drive for archives:..06/10/2025 1:25 PM: Received from standard out: 1 file, 304661 bytes (298 KiB)..06/10/2025 1:25 PM: Received from standard out: ..06/10/2025 1:25 PM: Received from standard out: Extracting archive: C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip..06/10/2025 1:25 PM: Received from standard out: --..06/10/2025 1:25 PM: Received from standard out: Path = C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip..06/10/2025 1:25 PM: Received from stand
File type:Zip archive data, at least v2.0 to extract, compression method=deflate
Entropy (8bit):7.999428189838561
TrID:
  • ZIP compressed archive (8000/1) 100.00%
File name:MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip
File size:304'661 bytes
MD5:69df6d69eec94f2b5aa9bafc914c5e1b
SHA1:b2d7e97de1cd2e4c40334a9ff22a7a5cfd2c7042
SHA256:e07e3f223e7a0bbc38635c19e686d9017405b20a47bee83ae655bf7eba7713ab
SHA512:4cd412c06b78d39ecf5656e5b13e41ad479879ab3eb8c8be5819396bb7c52232e7273c5074813df3a949bd232088b1771c20e863324ac2456b1fc6322bc4539f
SSDEEP:6144:JS+Ji73tmtY//eoUdALJoA9BmGJsWRRPfp2fUgJAFn6NOkSH8ZQDjC0C:o+C3w2/rZLJoWEGNdhIUOAFuOXkr
TLSH:EB5423D0E20B49ECA5EE0FB1D1239AB811E419896317BF3EA7C3DD641D00E52F676B94
File Content Preview:PK...........Z..t.?.........$.SearchProtocolHost.exe.. ............k,......k,......k,......7...n.|..5*.tx..N2/....."..u...o......#.NmJ.\d..h...l(..........8....K..>~.5\V.......#...EYk6]......d=..z....F.3.r..Ey.g.....<;....4r7.B.....>....y..bo...Z.+.M3/y-h
Icon Hash:90cececece8e8eb0
No network behavior found

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Target ID:0
Start time:13:25:12
Start date:10/06/2025
Path:C:\Windows\SysWOW64\unarchiver.exe
Wow64 process (32bit):true
Commandline:"C:\Windows\SysWow64\unarchiver.exe" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"
Imagebase:0xf80000
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:13:25:12
Start date:10/06/2025
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\s1im4k2h.s1l" "C:\Users\user\Desktop\MDE_File_Sample_9325dd111d7e1367f293dfb028879208fd3ed9b9.zip"
Imagebase:0xd40000
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:13:25:12
Start date:10/06/2025
Path:C:\Windows\System32\conhost.exe
Wow64 process (32bit):false
Commandline:C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:0x7ff74be10000
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