Analysis

  • max time kernel
    124s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 19:36

General

  • Target
    Kiwi X/Kiwi X Bootstrapper.exe
  • Size 178KB
  • Sample240107-ybm5jacfgn
  • SHA256 4d819c0df101498676f943c688edcd812161be8e82fd2a1877b5690cd3679ca9
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X Bootstrapper.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X.exe
      "C:\Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch&plcid=0x409&o1=.NETFramework,Version=v4.8&processName=Kiwi X.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2008 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:364

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 66400c3c98936017c42bb263c5c96d9b0d4fc4a769c2abe0c4983673e939bc10
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 eb71422d28b2892344acdb123fe8b8c5c8b210535ab87c1a3f81725578805d0e
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 6db7f3ef44d4a1aeaffb190e86817196a54881523978fa4ddd1efb7dbc43b234
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 78f3bdaa6857d0e46ac35f4b1cdba13a8b9f6953ee0893645e9aa68a3e88d9ab
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 061f9b0540ca25ad0e2ae7b5a3e8f407fe620cbf480271442b4323a95b635ac5
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 771020fc1eeee03666ae59da55dcb35632f132f3080e8827d144c52e2d8eb089
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 6de6bcc7b115daa2cf27524e9efb47cee40de917de522fb52bdcab4317cbe8af
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 bd7d3d954c5e2a51ab884d224273c9cbad61dcd83c771a49051a39a39fb9ba23
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 7c6585a4bc59a765fb38b2b1faa317ccc56571d7bd7c99cf2fa77ee18d7342b2
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 d7c9f34c84263a327b20d33fd21aca7337efc345d1efeee4292844e7417d4459
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 f7880ff664b31cfd3287caeff47061b8ee568348be32e2be1731cecad5c078bc
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 4bbe47eb21e2128733ad2ef5330ac46e745110b853dc3fe0f7b0fd9ca0e0766b
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 cff778a7956721354a42e7e241fb7ecabc23ee4bfcd8fe3fe4888e26b86b7a2b
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 836403735d249fa6b422cc39cd60e691dd33d4c0794af9839a66684510285bc6
        • MD5 SHA1 SHA512

        CabEE47.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\CabEE47.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP

        Kiwi X.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X.exe
        • Size 64KB
        • SHA256 7f2007e39a606f02c16b98324def593adda8d8429577ed23ce23aa9963d3a525
        • MD5 SHA1 SHA512 SSDEEP

        TarEEA8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\TarEEA8.tmp
        • Size 171KB
        • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
        • MD5 SHA1 SHA512 SSDEEP

        Kiwi X.exe

        • Path \Users\Admin\AppData\Local\Temp\Kiwi X\Kiwi X.exe
        • Size 80KB
        • SHA256 eab4fb4671d64139add76aa75d3cb40ea4baeb3d13755c0eff7622accf3b1de2
        • MD5 SHA1 SHA512 SSDEEP

        memory/1964-1-0x00000000740E0000-0x00000000747CE000-memory.dmp

        memory/1964-3-0x0000000004CF0000-0x0000000004D30000-memory.dmp

        memory/1964-44-0x00000000740E0000-0x00000000747CE000-memory.dmp

        memory/1964-2-0x00000000740E0000-0x00000000747CE000-memory.dmp

        memory/1964-0-0x0000000000D90000-0x0000000000DC2000-memory.dmp