Analysis

  • max time kernel
    40s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

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

General

  • Target

    8e8608926c3039b03daf069c7ad519d29dca5343fb69144980f584d794a4b77e.exe

  • Size

    4.3MB

  • MD5

    5ccc76c6f795a564f7bd5d7c40cd5dfe

  • SHA1

    10a825918dbcc124affd2d76a78b8593fb554a60

  • SHA256

    8e8608926c3039b03daf069c7ad519d29dca5343fb69144980f584d794a4b77e

  • SHA512

    588519634b38bdc153bf371c42544cef2e6f3a58f9c162958939e4935929d15e3a6b158e6a029e40a7b922fb304c4df46b4abda116d4afb9d6eef23e5de6364e

  • SSDEEP

    49152:KSuK4jZ0WHCpNqLmxup4/dGKvghxfki1UpPXGIjQMjSlM/Zf0weeDNxcr:Z2Z0NvqFKcMP2iQMj8MNtLNxc

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\8e8608926c3039b03daf069c7ad519d29dca5343fb69144980f584d794a4b77e.exe
    "C:\Users\Admin\AppData\Local\Temp\8e8608926c3039b03daf069c7ad519d29dca5343fb69144980f584d794a4b77e.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:1872
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\C5O1nGrs60GQGb.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\C5O1nGrs60GQGb.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\C5O1nGrs60GQGb.dat
    Filesize

    4KB

    MD5

    fdf2f894fe57c1e75d19f7bb544c864f

    SHA1

    7f1d1d9619ee29873a9c7fa1e2beaf55f454e1a1

    SHA256

    060d478ccfac126554c488ee7c3ca0e371f3ff80e95aa28e60bc225e8e390288

    SHA512

    a820152ec187b39a18252b083b996dd92eca43d3911dd7425080f0029a3d24aa6f607cbe5c6ed9bcbad3ae8e87985b0a023e24e2d003834b5cb30a42ce7d0ae4

  • C:\Program Files (x86)\GoSave\C5O1nGrs60GQGb.tlb
    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\GoSave\C5O1nGrs60GQGb.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\C5O1nGrs60GQGb.dll
    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\C5O1nGrs60GQGb.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\C5O1nGrs60GQGb.x64.dll
    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/860-65-0x0000000000000000-mapping.dmp
  • memory/860-66-0x000007FEFB591000-0x000007FEFB593000-memory.dmp
    Filesize

    8KB

  • memory/1288-61-0x0000000000000000-mapping.dmp
  • memory/1872-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp
    Filesize

    8KB

  • memory/1872-55-0x0000000002A90000-0x0000000002B59000-memory.dmp
    Filesize

    804KB