Analysis

  • max time kernel
    34s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 22:41

General

  • Target

    892439e07ed30b8161053e621caf5543961c2e8ac56916a3bcc24b29c5a09d29.exe

  • Size

    4.3MB

  • MD5

    056f07b493fde07243a6a942bc54379c

  • SHA1

    13f89020700aa9e7366fe81ac9cc4b36a623f6c7

  • SHA256

    892439e07ed30b8161053e621caf5543961c2e8ac56916a3bcc24b29c5a09d29

  • SHA512

    414511cdcf1e125dc7e1f895fc2c26db900a09fb57bccd9f4f51a64dae3d5ca3c8c70697d5f0f9cac676c2b5cb51ec440786a376ecdc99522342210ff24d7707

  • SSDEEP

    49152:3yuKYDZ0WnCJ+KLmxup4KdGKvghxfki1yPXGIjQPyoC3yE/Ac5mWxnmzL:62Z0toKwKcAP2iQ6oWNAxen0

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\892439e07ed30b8161053e621caf5543961c2e8ac56916a3bcc24b29c5a09d29.exe
    "C:\Users\Admin\AppData\Local\Temp\892439e07ed30b8161053e621caf5543961c2e8ac56916a3bcc24b29c5a09d29.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:1388
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\meYQhaj2rwwKJe.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:968
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\meYQhaj2rwwKJe.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\meYQhaj2rwwKJe.dat

    Filesize

    4KB

    MD5

    4b37a2b0c10e78befd4aaab335b143e7

    SHA1

    233f0e8e74b839d26b0c7b6f083a9965f3fbc911

    SHA256

    895dd57092b48b0e20291d50bc165f47363343ea0ed183299cd2b6b287337435

    SHA512

    8d02789c145dd23449cfeb4cf15de4cc9630a2c21921d69a217cdc07e9e542a612de7ebd83e7f6336e91b4db2281516b8189eb737cd1c80d0098d122c88cffd0

  • C:\Program Files (x86)\GoSave\meYQhaj2rwwKJe.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\GoSave\meYQhaj2rwwKJe.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\meYQhaj2rwwKJe.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\meYQhaj2rwwKJe.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\meYQhaj2rwwKJe.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/968-61-0x0000000000000000-mapping.dmp

  • memory/1388-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

    Filesize

    8KB

  • memory/1388-55-0x0000000002BA0000-0x0000000002C69000-memory.dmp

    Filesize

    804KB

  • memory/1936-65-0x0000000000000000-mapping.dmp

  • memory/1936-66-0x000007FEFC141000-0x000007FEFC143000-memory.dmp

    Filesize

    8KB