Analysis

  • max time kernel
    266s
  • max time network
    332s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 13:10

General

  • Target

    fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.exe

  • Size

    3.1MB

  • MD5

    3c3384cd45ede6f3fa4dfb9296e28fa4

  • SHA1

    76ba463f3a40ca47d892e7cb30c31f319570c133

  • SHA256

    fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e

  • SHA512

    9e1a80129dc61e57a730550fef6fb86923a9d7040a3f5014d662d21061d5757d8e64f557b69b12fe439f9a6d0c3e477135223d606c546cedc7c79db2c19b5010

  • SSDEEP

    49152:bgpjaT01rpJXA5gtqA3Sv/fN9P5jDQoxnI3Kj/Y4y44ZGvhMJG0dvgNkwIe5nrM:kwSrphA5RN53vxnBEvGfJN1

Malware Config

Signatures

  • Loads dropped DLL 2 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 4 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 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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\fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.exe
    "C:\Users\Admin\AppData\Local\Temp\fcb6c8e1b4d5484459e84a4c3e2b0c85c94ac056184f81deb2d4a5c6f8dfaa6e.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 AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:580
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll"
        3⤵
          PID:1224

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    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)\PricceeLLess\7zi7FhkdD8noxy.x64.dll
      Filesize

      696KB

      MD5

      df7367824b7f650acbd6e79ba2289d39

      SHA1

      c89d6ddd0b831488b79d2d84f114daa1da46151b

      SHA256

      0a1739d49e7161b3593306e1b1255278d6fa5ca642697c880dfa31b9d783bf62

      SHA512

      aa67c10cfc4ab9e0155ed89ee0e1a5db3bea596951e23d6fdadefc960f96a68723bb7423297c0ffdbf49fd6560504f6836d5f27f7077ac336e21bc09b9dd1e31

    • \Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.dll
      Filesize

      617KB

      MD5

      0824e96d2290c55a0656e54ae21a0500

      SHA1

      15e7c7faf237f6b74a39a26f1da39dbed1b49ed3

      SHA256

      020f799f6bab93debc71c2586cbc6615659066b11484f79ac2227eb8b6b8b164

      SHA512

      ad52079068406cfd2a6d9159f06b16929f99bdfe6a625ca36c758e8b8b705df1348c7275a815c6365d838ecc550104c0a76d4bd3bccbd0c6124521af3cb76138

    • \Program Files (x86)\PricceeLLess\7zi7FhkdD8noxy.x64.dll
      Filesize

      696KB

      MD5

      df7367824b7f650acbd6e79ba2289d39

      SHA1

      c89d6ddd0b831488b79d2d84f114daa1da46151b

      SHA256

      0a1739d49e7161b3593306e1b1255278d6fa5ca642697c880dfa31b9d783bf62

      SHA512

      aa67c10cfc4ab9e0155ed89ee0e1a5db3bea596951e23d6fdadefc960f96a68723bb7423297c0ffdbf49fd6560504f6836d5f27f7077ac336e21bc09b9dd1e31

    • memory/580-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp
      Filesize

      8KB

    • memory/580-55-0x0000000002730000-0x00000000027D2000-memory.dmp
      Filesize

      648KB

    • memory/1224-86-0x0000000000000000-mapping.dmp
    • memory/1224-87-0x000007FEFB641000-0x000007FEFB643000-memory.dmp
      Filesize

      8KB

    • memory/2000-82-0x0000000000000000-mapping.dmp