Overview

overview

10

Static

static

3

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    59s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7-20230621-en
  • resource tags

    arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
  • submitted
    02/07/2023, 00:14

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    file.exe
  • Size 1.2MB
  • Sample230702-ajbjpsaa85
  • SHA256 1c94dd171fbd8bf303fb8378c8deaab0e63e92d76336dcc8f41c630748fa2adf
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gcleanerdiscoveryloader

Malware Config

Extracted

Family

  • gcleaner

C2

  • 45.12.253.56

  • 45.12.253.72

  • 45.12.253.98

  • 45.12.253.75

Signatures

  • GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    loadergcleaner
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 1 IoCs
    evasion
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Local\Temp\is-G4MDL.tmp\is-74QQ8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-G4MDL.tmp\is-74QQ8.tmp" /SL4 $70126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1001743 139776
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:772
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 1
          4⤵
            PID:1020
        • C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe
          "C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\3wqquKb.exe
            4⤵
            • Executes dropped EXE
            PID:1624
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c taskkill /im "ReiSpacer71.exe" /f & erase "C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe" & exit
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:928
            • C:\Windows\SysWOW64\taskkill.exe
              taskkill /im "ReiSpacer71.exe" /f
              5⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:764

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          ReiSpacer71.exe
          • Path C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe
          • Size 1.1MB
          • SHA256 881db5657c66ad508bc0a9cd1046e4f8acb7d5178ca3e5c5203b61a81aedda28
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          ReiSpacer71.exe
          • Path C:\Program Files (x86)\ReiSpacer71\ReiSpacer71.exe
          • Size 1.1MB
          • SHA256 881db5657c66ad508bc0a9cd1046e4f8acb7d5178ca3e5c5203b61a81aedda28
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          readme.txt
          • Path C:\Program Files (x86)\ReiSpacer71\readme.txt
          • Size 4KB
          • SHA256 c8fa111c5b9537e3b6cab9ba763e164e27fa469f2232b82a54b206a7d892b9e9
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          dll[1].htm
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M90WC9I6\dll[1].htm
          • Size 1B
          • SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
          • MD5 SHA1 SHA512
          Submit Download

          is-74QQ8.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\is-G4MDL.tmp\is-74QQ8.tmp
          • Size 729KB
          • SHA256 410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          is-74QQ8.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\is-G4MDL.tmp\is-74QQ8.tmp
          • Size 729KB
          • SHA256 410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          3wqquKb.exe
          • Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\3wqquKb.exe
          • Size 72KB
          • SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          ReiSpacer71.exe
          • Path \Program Files (x86)\ReiSpacer71\ReiSpacer71.exe
          • Size 1.1MB
          • SHA256 881db5657c66ad508bc0a9cd1046e4f8acb7d5178ca3e5c5203b61a81aedda28
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          _iscrypt.dll
          • Path \Users\Admin\AppData\Local\Temp\is-CIRSR.tmp\_isetup\_iscrypt.dll
          • Size 2KB
          • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
          • MD5 SHA1 SHA512
          Submit Download

          _shfoldr.dll
          • Path \Users\Admin\AppData\Local\Temp\is-CIRSR.tmp\_isetup\_shfoldr.dll
          • Size 22KB
          • SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          _shfoldr.dll
          • Path \Users\Admin\AppData\Local\Temp\is-CIRSR.tmp\_isetup\_shfoldr.dll
          • Size 22KB
          • SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          is-74QQ8.tmp
          • Path \Users\Admin\AppData\Local\Temp\is-G4MDL.tmp\is-74QQ8.tmp
          • Size 729KB
          • SHA256 410221a48dc0d2cc667c8d68ee819039be2ac515abc5f1beea0da1d68ec742ff
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          3wqquKb.exe
          • Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\3wqquKb.exe
          • Size 72KB
          • SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/912-265-0x0000000003930000-0x0000000004842000-memory.dmp
          Download

          memory/912-99-0x00000000001D0000-0x00000000001D1000-memory.dmp
          Download

          memory/912-248-0x0000000003930000-0x0000000004842000-memory.dmp
          Download

          memory/912-290-0x0000000000400000-0x00000000004C6000-memory.dmp
          Download

          memory/912-252-0x0000000000400000-0x00000000004C6000-memory.dmp
          Download

          memory/1376-249-0x0000000000400000-0x0000000001312000-memory.dmp
          Download

          memory/1376-262-0x0000000010000000-0x000000001001B000-memory.dmp
          Download

          memory/1376-258-0x0000000000400000-0x0000000001312000-memory.dmp
          Download

          memory/1376-269-0x0000000000400000-0x0000000001312000-memory.dmp
          Download

          memory/1376-289-0x0000000000400000-0x0000000001312000-memory.dmp
          Download

          memory/1376-250-0x0000000000400000-0x0000000001312000-memory.dmp
          Download

          memory/1736-251-0x0000000000400000-0x0000000000428000-memory.dmp
          Download

          memory/1736-291-0x0000000000400000-0x0000000000428000-memory.dmp
          Download

          memory/1736-54-0x0000000000400000-0x0000000000428000-memory.dmp
          Download