Analysis

  • max time kernel
    186s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 07:46

General

  • Target
    080b76e36195a2e941d60789e16bbc39b95dd52fd3e943e9df6f323cc714d481.exe
  • Size 2.5MB
  • Sample221124-jmdmxahf59
  • SHA256 080b76e36195a2e941d60789e16bbc39b95dd52fd3e943e9df6f323cc714d481
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 1 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 5 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 9 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
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\080b76e36195a2e941d60789e16bbc39b95dd52fd3e943e9df6f323cc714d481.exe
    "C:\Users\Admin\AppData\Local\Temp\080b76e36195a2e941d60789e16bbc39b95dd52fd3e943e9df6f323cc714d481.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\k9OrCYYVpszcYwk.exe
      .\k9OrCYYVpszcYwk.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4044
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:3160
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:1884
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4160

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            1MmXM1NIG7M2qN.dat

            • Path C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.dat
            • Size 7KB
            • SHA256 3b7320b398c593826b09fcc59f7240512cb23cb31e2a7a8bf78cb581165666e8
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.dll

            • Path C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.dll
            • Size 750KB
            • SHA256 7d25cce7e647fbee7c157d7cad8b3a12abb66fa3b992adfede9de78687b69838
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.x64.dll

            • Path C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.x64.dll
            • Size 882KB
            • SHA256 6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.x64.dll

            • Path C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.x64.dll
            • Size 882KB
            • SHA256 6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.x64.dll

            • Path C:\Program Files (x86)\GoSave\1MmXM1NIG7M2qN.x64.dll
            • Size 882KB
            • SHA256 6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\1MmXM1NIG7M2qN.dll
            • Size 750KB
            • SHA256 7d25cce7e647fbee7c157d7cad8b3a12abb66fa3b992adfede9de78687b69838
            • MD5 SHA1 SHA512 SSDEEP

            1MmXM1NIG7M2qN.tlb

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\1MmXM1NIG7M2qN.tlb
            • Size 3KB
            • SHA256 14f706e58b4e332e1bc9b6fc6c650097db6e0ea91ac7ad0064aba01832ddd990
            • MD5 SHA1 SHA512

            1MmXM1NIG7M2qN.x64.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\1MmXM1NIG7M2qN.x64.dll
            • Size 882KB
            • SHA256 6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b
            • MD5 SHA1 SHA512 SSDEEP

            bootstrap.js

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\[email protected]\bootstrap.js
            • Size 2KB
            • SHA256 6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
            • MD5 SHA1 SHA512

            chrome.manifest

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\[email protected]\chrome.manifest
            • Size 35B
            • SHA256 007b30fe02d34580e08d1a80421169d35e8e46ec5ad88f3f26c31bff9fa39ee0
            • MD5 SHA1 SHA512

            bg.js

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\[email protected]\content\bg.js
            • Size 8KB
            • SHA256 22da2eaa0cffe27ece64695d505fcf4834d3f616ca07d52a5592755318a9d754
            • MD5 SHA1 SHA512 SSDEEP

            install.rdf

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\[email protected]\install.rdf
            • Size 592B
            • SHA256 158cb82883cc11b4b8439ac984aa90038f26450c595a02e24c7596ac4577b741
            • MD5 SHA1 SHA512

            Arsb.js

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\celolalnkipjnekolmjoagikinnifpkc\Arsb.js
            • Size 6KB
            • SHA256 cd0ab8e5f12acb761eac72238a47e066581e43582a9e0414d1685288352d4ccc
            • MD5 SHA1 SHA512 SSDEEP

            background.html

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\celolalnkipjnekolmjoagikinnifpkc\background.html
            • Size 141B
            • SHA256 68f9fdcec4a3bcf95356cd7fd62d7f5c1e67b5f312a44c70f13fcc9a7bba7cc4
            • MD5 SHA1 SHA512

            content.js

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\celolalnkipjnekolmjoagikinnifpkc\content.js
            • Size 144B
            • SHA256 332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
            • MD5 SHA1 SHA512

            lsdb.js

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\celolalnkipjnekolmjoagikinnifpkc\lsdb.js
            • Size 531B
            • SHA256 ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
            • MD5 SHA1 SHA512

            manifest.json

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\celolalnkipjnekolmjoagikinnifpkc\manifest.json
            • Size 498B
            • SHA256 e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
            • MD5 SHA1 SHA512

            k9OrCYYVpszcYwk.dat

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\k9OrCYYVpszcYwk.dat
            • Size 7KB
            • SHA256 3b7320b398c593826b09fcc59f7240512cb23cb31e2a7a8bf78cb581165666e8
            • MD5 SHA1 SHA512 SSDEEP

            k9OrCYYVpszcYwk.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\k9OrCYYVpszcYwk.exe
            • Size 771KB
            • SHA256 a4265c00fc8eb9371329ddbc19e760b433ea9f4ab4e16d4d95682031940ad6c9
            • MD5 SHA1 SHA512 SSDEEP

            k9OrCYYVpszcYwk.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zSFD12.tmp\k9OrCYYVpszcYwk.exe
            • Size 771KB
            • SHA256 a4265c00fc8eb9371329ddbc19e760b433ea9f4ab4e16d4d95682031940ad6c9
            • MD5 SHA1 SHA512 SSDEEP