Analysis

  • max time kernel
    46s
  • max time network
    82s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24/08/2024, 15:12

General

  • Target

    a41ffdb8ddb5e27c1ad6478d7559f240N.exe

  • Size

    1.0MB

  • MD5

    a41ffdb8ddb5e27c1ad6478d7559f240

  • SHA1

    f83e04929f3988a3aefc8ac40a8a6a72f83ade97

  • SHA256

    eedc4ce191851f845f671e469ad056868d7fd07f7fe853697bff1d1f62b95056

  • SHA512

    9a07541981ed54376f202ad1ec0f82d0da4717b01e8cb678165d98b51d73a5731b84bca457458f32c6a52ab1c0688b99050e39da3f3f2d6b69427b808029842b

  • SSDEEP

    24576:+A/uXLA5A3c1KdYS+f7vlK13BHUZ50zqLQyow3CqCzt:J/u7A5A3c1KSf7dK11Ur0wQyow3Cpzt

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\a41ffdb8ddb5e27c1ad6478d7559f240N.exe
    "C:\Users\Admin\AppData\Local\Temp\a41ffdb8ddb5e27c1ad6478d7559f240N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\a41ffdb8ddb5e27c1ad6478d7559f240N.exe
      C:\Users\Admin\AppData\Local\Temp\a41ffdb8ddb5e27c1ad6478d7559f240N.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:1936
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a41ffdb8ddb5e27c1ad6478d7559f240N.exe" /TN OuaI455U58d9 /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2152
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN OuaI455U58d9 > C:\Users\Admin\AppData\Local\Temp\5RZb91g6.xml
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2840
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN OuaI455U58d9
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    342B

    MD5

    c9711e2a17e3470c79281b0d2251ef3d

    SHA1

    aeb4007edff5eb34ea25c42f5c103f3bc8237b9a

    SHA256

    998827d2b017a04077d0a33521c264d1aef8676e6b05796e940b83ba4ae2c3a9

    SHA512

    9758c5a758aa2ed78df50f424007e56e787eb82a168dd300d8ee56944d7e851075d0adf4b1e06639a4f5040846768d3e34c5011d2d1da9f08ff6f9f61ee8a9ef

  • C:\Users\Admin\AppData\Local\Temp\5RZb91g6.xml

    Filesize

    1KB

    MD5

    03856d9f82bffd67b0286ebd16a22889

    SHA1

    c95e2d502635f5033eded9ba84e4a44682d1cf43

    SHA256

    c505c5d3fbcedf161e6063707f06dacaa6c38352b0b6f8f58064a5a0ede7c50d

    SHA512

    433d415edef4787969a513b4a83fef7da946953a899656dd3bf9074c05048571ea14813ba19fb705ececd3cf6c78541643baf9bdb376f47f711af1ddfd53a423

  • C:\Users\Admin\AppData\Local\Temp\CabEE95.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarEEA8.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Local\Temp\a41ffdb8ddb5e27c1ad6478d7559f240N.exe

    Filesize

    1.0MB

    MD5

    214ecefa361edfc1202ddf7fd2d97b01

    SHA1

    23d16e2c0c41e19137cfe2b843457f34b0a6b832

    SHA256

    cb38a26c4c84204f5daa983563e94fa3f5527b83bd0cea4fa0397d3dc2f53e6e

    SHA512

    345cf1e8ec79e241042493183e2b830277c0a62170d1d6172ac2a6c6e4e42b974a6406ad4c93ac768a94ab3e03707c725166f09872a59dcd87919d6ca3b92db9

  • memory/1936-18-0x0000000022D90000-0x0000000022E0E000-memory.dmp

    Filesize

    504KB

  • memory/1936-26-0x0000000000280000-0x00000000002EB000-memory.dmp

    Filesize

    428KB

  • memory/1936-25-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/1936-36-0x0000000000400000-0x000000000065C000-memory.dmp

    Filesize

    2.4MB

  • memory/3028-15-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3028-16-0x0000000022F80000-0x00000000231DC000-memory.dmp

    Filesize

    2.4MB

  • memory/3028-35-0x0000000022F80000-0x00000000231DC000-memory.dmp

    Filesize

    2.4MB

  • memory/3028-0-0x0000000000400000-0x000000000065C000-memory.dmp

    Filesize

    2.4MB

  • memory/3028-1-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3028-7-0x0000000001660000-0x00000000016DE000-memory.dmp

    Filesize

    504KB