Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 15:18

General

  • Target

    d3bd8aa9d23c6f86b88662ba478209a3d54d0aea368eeffd4af95fee851e3bc9.exe

  • Size

    913KB

  • MD5

    67de448a65e1e16d4a1d6f5a65b4c61a

  • SHA1

    ab7166a256aad0180e46e88d2169b4cadaf1ebf4

  • SHA256

    d3bd8aa9d23c6f86b88662ba478209a3d54d0aea368eeffd4af95fee851e3bc9

  • SHA512

    47f477732c88f3e7f99273c4dbd563dfd288be342af08bbca60e1020e65b4d32199b85bf6a15cbe93f6e4e0e47d42915b1a42b5e2ed5193aaf30d888e38cc29e

  • SSDEEP

    12288:yK2mhAMJ/cPltTiD8/HBP7v8h7UZYE82Y5UKUL4n4y3Xp3SbSl/ADUnr:z2O/GltWD8fBPA7g6zwm4m53Sb2YDUnr

Malware Config

Signatures

  • NetWire RAT payload 4 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3bd8aa9d23c6f86b88662ba478209a3d54d0aea368eeffd4af95fee851e3bc9.exe
    "C:\Users\Admin\AppData\Local\Temp\d3bd8aa9d23c6f86b88662ba478209a3d54d0aea368eeffd4af95fee851e3bc9.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
      "C:\Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe" mevvzby
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1692
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • Drops file in Windows directory
        PID:588

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\I5D9G4~1\gjsenxmaomap.UOX
    Filesize

    89B

    MD5

    6555605040d90d02e35161f27518821f

    SHA1

    8979afd72300842935326852bb4bdcd28040c27f

    SHA256

    87acbecbc873d2523c8937afb7a79ce8a724c96863030552510b71ebfb39d654

    SHA512

    8aaf385bd1e9e35982799722caf7d384208bb1ddb9718a6d20772e26fb37376fe7108f8ed4c5eb18275c7de78041f72c4e059d93b527a8eb1a595e8dfd8f28a7

  • C:\Users\Admin\I5D9G4~1\yweh.BZK
    Filesize

    84KB

    MD5

    a3996a84f8c3744b541d3388bcdda83c

    SHA1

    80b28686fdb20bd666a199860af5d48caa3a57d1

    SHA256

    a8190c726d39e659579a4705ed113b900257e50eb83f626df90e82b179b18fe6

    SHA512

    c04ead0005b5697f8c38b8e13456a9172d0106219db444294b8bcd90ca172ef6598c179f566ee0a8ff6c834c59a7053aef1f3453e442063fcf0db989eef85527

  • C:\Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
    Filesize

    732KB

    MD5

    71d8f6d5dc35517275bc38ebcc815f9f

    SHA1

    cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

    SHA256

    fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

    SHA512

    4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

  • C:\Users\Admin\i5d9g4jxa83i\mevvzby
    Filesize

    646.8MB

    MD5

    e9ca388696fb78f1ada8e734de03885e

    SHA1

    7676ce9afc658edece20ef05c57bb9cf5fa22b0a

    SHA256

    a47b9aff9070bbca23bd4610bffd2f8a71fb11ad4f009a2dcfee7903883b9d69

    SHA512

    bc84e2e71c92086c594c30a9ab3c2e7884f706c47540ba6be58938c515393645ae728ec334954ba5fa193dd1f1798c453fdbeaa81eb182f7856b71d1a88ef980

  • \Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
    Filesize

    732KB

    MD5

    71d8f6d5dc35517275bc38ebcc815f9f

    SHA1

    cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

    SHA256

    fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

    SHA512

    4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

  • \Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
    Filesize

    732KB

    MD5

    71d8f6d5dc35517275bc38ebcc815f9f

    SHA1

    cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

    SHA256

    fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

    SHA512

    4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

  • \Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
    Filesize

    732KB

    MD5

    71d8f6d5dc35517275bc38ebcc815f9f

    SHA1

    cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

    SHA256

    fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

    SHA512

    4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

  • \Users\Admin\i5d9g4jxa83i\lokdpnhssmcq.exe
    Filesize

    732KB

    MD5

    71d8f6d5dc35517275bc38ebcc815f9f

    SHA1

    cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

    SHA256

    fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

    SHA512

    4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

  • memory/588-65-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/588-67-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/588-68-0x00000000004021DA-mapping.dmp
  • memory/588-71-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/588-73-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/1456-54-0x0000000075B51000-0x0000000075B53000-memory.dmp
    Filesize

    8KB

  • memory/1692-59-0x0000000000000000-mapping.dmp