Analysis

  • max time kernel
    41s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 04:44

General

  • Target

    1324e6fcc3e52e4ea1fec74b38f42f605e1afa3dc4667b843f85dff84535724d.exe

  • Size

    4.4MB

  • MD5

    c35f8524fe9ca8089b3eea8a6762d4b3

  • SHA1

    77403108e21e1b79799446c6166178910d5794ff

  • SHA256

    1324e6fcc3e52e4ea1fec74b38f42f605e1afa3dc4667b843f85dff84535724d

  • SHA512

    2bf2bd4303e13c631acfd3a26373f97332f859e9d358febd0741dd11b7c10cd16d025c728f2216483dd46e86f365a1abbbd9dbfe4c35bf12177bc001d4fc5c09

  • SSDEEP

    49152:Jc8UN8bPQAjUcBdUxup4mBXOjKzuFYdkwSc7SKuB+lyzEJ3jxh:6KbPXnBzOjK9kwD7SKbYiTx

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1324e6fcc3e52e4ea1fec74b38f42f605e1afa3dc4667b843f85dff84535724d.exe
    "C:\Users\Admin\AppData\Local\Temp\1324e6fcc3e52e4ea1fec74b38f42f605e1afa3dc4667b843f85dff84535724d.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2032
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\hZXapKKZHVOYAh.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\hZXapKKZHVOYAh.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1484

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    4KB

    MD5

    2053f6b92e0c73216b711c6689d977d6

    SHA1

    07ae926d40b8397b0769107e5dff76b3eaf02c1a

    SHA256

    b5a9cd7b7167aa701a9911e52303478ab9e8dcd3e687d7155ad0a88a4b693714

    SHA512

    14ec406029cc29fdc4c2bee5cd2c796e5f74688ff7ae56cd9b4ceaf5b28891a4608f21ab9fbc775e256b353ae09d853972100258bff68b07e844b638709ea449

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

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

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

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

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

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

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

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

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

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/776-61-0x0000000000000000-mapping.dmp
  • memory/1484-65-0x0000000000000000-mapping.dmp
  • memory/1484-66-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp
    Filesize

    8KB

  • memory/2032-54-0x0000000075C21000-0x0000000075C23000-memory.dmp
    Filesize

    8KB

  • memory/2032-55-0x0000000002CB0000-0x0000000002D79000-memory.dmp
    Filesize

    804KB