Analysis

  • max time kernel
    33s
  • max time network
    65s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    06/08/2024, 04:27

General

  • Target

    5b4ba1fac88bf065009609efda8a3db0N.exe

  • Size

    3.0MB

  • MD5

    5b4ba1fac88bf065009609efda8a3db0

  • SHA1

    a1cdd4b72b26634498ec1741b25a02e65cedb746

  • SHA256

    825723fc4277871eb9c04146e604a730534eede4c97beda490f79ef1c1c2670a

  • SHA512

    f198b0c5f63433033e090d0e0f2ac079ae27cdd21a54f4fa40898aa6d679efe33581e9afaf1e20627407a79fe03fd2b419cc74248386f6c1f53405cfffa1cf5c

  • SSDEEP

    49152:1Jc+qHOtjFavwmMxs46ogcakLWqhC2TH5t8NlqMcakLx54DlRNE1IQQskF68Yca6:fdqHOtjUvwmmsTogcakKaC2TZt8NlPcU

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe
      C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe" /TN nxZWN5JZ5008 /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2348
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN nxZWN5JZ5008 > C:\Users\Admin\AppData\Local\Temp\qaaCmp.xml
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2612
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN nxZWN5JZ5008
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    304B

    MD5

    c290fd2bc7e100713207e44290545c32

    SHA1

    2978448b32dde7158a7fe044e0eaf30e7e7fdcd8

    SHA256

    75724aa05f04e3b47a0abe35959078549dec75b123d35ed1eceaa7e9ecc15e2b

    SHA512

    8baab142f28870de039bcb1c978dacbfffed57e2ddad7e69d4052e96c4201c1d43fcd02f207c07988099c0c5ac33d29e613d4e621fe392e0469f65577ce4dda9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    304B

    MD5

    33dff5eb173f90a96aefd8a3c8fa9e17

    SHA1

    b4d37536dd69da6a38b673138be6ae43a0d911ad

    SHA256

    a3cf7844e5f0c23185f06aff63bff2225e833c5993bb4682ceca18bc251d65a2

    SHA512

    e01ce92bcf27981af1e1887a13ef51eb92fd25e1483a6eec4b99f2ccc561a1dc21dc52a050b4a1c089ca9bffe4ea92ff61eef6bebd4c2027c17141c338aa982c

  • C:\Users\Admin\AppData\Local\Temp\5b4ba1fac88bf065009609efda8a3db0N.exe

    Filesize

    3.0MB

    MD5

    7909e47cfa83b3dfacc26a35c26fa6de

    SHA1

    320b5ce82806cd7bd372dd694bd0c437258b310f

    SHA256

    e7e7759872d318c702f025b0042b5015a8c892f6fff07b66ed4e53e859cf1899

    SHA512

    e74545e14840972f6295eeddbf6c8894306a2daa446da97527535011006ee48a1f4d161b97743f396930b4720f8eb02ee296bc97f2ab049136f14fa39a845288

  • C:\Users\Admin\AppData\Local\Temp\CabF394.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarF3A7.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\qaaCmp.xml

    Filesize

    1KB

    MD5

    e15b44c5be3f902ed739cf12e4d383b3

    SHA1

    94e0de5073320c770a9743b3d4bebd4545e2aded

    SHA256

    72efce64be70170b7453444c40a53a1474716fb3ba41a644e9a931739eb99a9e

    SHA512

    54f0df473e0250eb38ed0f9f4b1b1a74533fd7f6c4ab85463853aab8e948e87e732b456717f96cc677b5a4752ed70d0a150812de3f3813a903079a6cb4f3a85c

  • memory/2136-3-0x0000000000400000-0x000000000065C000-memory.dmp

    Filesize

    2.4MB

  • memory/2136-15-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2136-0-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2136-8-0x0000000022DA0000-0x0000000022E1E000-memory.dmp

    Filesize

    504KB

  • memory/2696-29-0x0000000000330000-0x000000000039B000-memory.dmp

    Filesize

    428KB

  • memory/2696-28-0x0000000000400000-0x000000000065C000-memory.dmp

    Filesize

    2.4MB

  • memory/2696-23-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2696-30-0x00000000002B0000-0x000000000032E000-memory.dmp

    Filesize

    504KB

  • memory/2696-120-0x0000000000400000-0x000000000065C000-memory.dmp

    Filesize

    2.4MB