Analysis

  • max time kernel
    4s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 23:10

General

  • Target

    7fbb14925b4f1582118968e00bdd321bdafa438c8a66b767adb0ccb0466c916e.exe

  • Size

    4.3MB

  • MD5

    82534fb76a448755238a7b1725757ae4

  • SHA1

    ede7f31413d7f007750b272fb1ad9d3ba410b57b

  • SHA256

    7fbb14925b4f1582118968e00bdd321bdafa438c8a66b767adb0ccb0466c916e

  • SHA512

    e81603a8eaf98d86168559e77b226b95ea393d3d5c10d625157fd2b54513d6011a01504f2a725623c48542ebea9e1ccb7417a69b58f22ec310ecb836a9129d87

  • SSDEEP

    49152:AiOqoTPI65XCI+armxup4bdGKvghxfki1mc7SKZEjSlM/Zf0weeDNxEaS:T2PI6whaFKcV7SKZEj8MNtLNxH

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fbb14925b4f1582118968e00bdd321bdafa438c8a66b767adb0ccb0466c916e.exe
    "C:\Users\Admin\AppData\Local\Temp\7fbb14925b4f1582118968e00bdd321bdafa438c8a66b767adb0ccb0466c916e.exe"
    1⤵
    • Loads dropped DLL
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1188
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\bKhliMRUjPLNgq.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1216
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\bKhliMRUjPLNgq.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\bKhliMRUjPLNgq.dat

    Filesize

    4KB

    MD5

    792ac2475718c6fa655150d0b6e04a58

    SHA1

    a4be901875660b409a6aeb47a90f4734f83efb43

    SHA256

    e297172dd34915331ffb819856cf77123f55d0e66ff3e8b8ec2db298a2df8215

    SHA512

    fd187b78b9a013b280b8494cc24a67b442bbb15ace92cbb2802e938aa7c414f616da404056d74665b3a7bd5303ef143c423a55f692e79b999f55ff025fa8701f

  • C:\Program Files (x86)\GoSave\bKhliMRUjPLNgq.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\GoSave\bKhliMRUjPLNgq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\bKhliMRUjPLNgq.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\bKhliMRUjPLNgq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\bKhliMRUjPLNgq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/1188-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB

  • memory/1188-55-0x0000000002A50000-0x0000000002B19000-memory.dmp

    Filesize

    804KB

  • memory/1216-61-0x0000000000000000-mapping.dmp

  • memory/1524-65-0x0000000000000000-mapping.dmp

  • memory/1524-66-0x000007FEFC3C1000-0x000007FEFC3C3000-memory.dmp

    Filesize

    8KB