Overview

overview

10

Static

static

3

9d6bdf9c82...JC.exe

windows7-x64

10

9d6bdf9c82...JC.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/08/2023, 17:31

Sharing

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General

  • Target
    9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe
  • Size 1.3MB
  • Sample230808-v35bcaee47
  • SHA256 9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gcleanerloader

Malware Config

Extracted

Family

  • gcleaner

C2

  • 45.12.253.56

  • 45.12.253.72

  • 45.12.253.98

  • 45.12.253.75

Attributes
  • url_path

    /default/puk.php

Signatures

  • GCleaner

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

    loadergcleaner
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Users\Admin\AppData\Local\Temp\is-7FRLL.tmp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7FRLL.tmp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp" /SL5="$60224,1093834,53248,C:\Users\Admin\AppData\Local\Temp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 31
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2720
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 31
          4⤵
            PID:4728
        • C:\Program Files (x86)\FNSpacer731\FNSpacer731.exe
          "C:\Program Files (x86)\FNSpacer731\FNSpacer731.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of WriteProcessMemory
          PID:3996
          • C:\Users\Admin\AppData\Roaming\{48cf2340-19df-11ee-a94e-806e6f6e6963}\5PRNFsfxhpq0.exe
            4⤵
            • Executes dropped EXE
            PID:5008

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          FNSpacer731.exe
          • Path C:\Program Files (x86)\FNSpacer731\FNSpacer731.exe
          • Size 1.5MB
          • SHA256 b6dbd3da29766907cdd0b20cb71eca125d57304f7be69ac6ad567695ee3ef671
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          FNSpacer731.exe
          • Path C:\Program Files (x86)\FNSpacer731\FNSpacer731.exe
          • Size 1.5MB
          • SHA256 b6dbd3da29766907cdd0b20cb71eca125d57304f7be69ac6ad567695ee3ef671
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          readme.txt
          • Path C:\Program Files (x86)\FNSpacer731\readme.txt
          • Size 4KB
          • SHA256 c8fa111c5b9537e3b6cab9ba763e164e27fa469f2232b82a54b206a7d892b9e9
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          _iscrypt.dll
          • Path C:\Users\Admin\AppData\Local\Temp\is-01OBS.tmp\_isetup\_iscrypt.dll
          • Size 2KB
          • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
          • MD5 SHA1 SHA512
          Submit Download

          9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\is-7FRLL.tmp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp
          • Size 664KB
          • SHA256 da2f1e62c8de1324166f76f46977e8c6d32fa48fdca42f3ea59e5ab01fb56a8d
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\is-7FRLL.tmp\9d6bdf9c821aeb3a727c396b7b902d0d2d5eb0f55a6f4027574fb8bb16732f4cexe_JC.exe.tmp
          • Size 664KB
          • SHA256 da2f1e62c8de1324166f76f46977e8c6d32fa48fdca42f3ea59e5ab01fb56a8d
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          5PRNFsfxhpq0.exe
          • Path C:\Users\Admin\AppData\Roaming\{48cf2340-19df-11ee-a94e-806e6f6e6963}\5PRNFsfxhpq0.exe
          • Size 72KB
          • SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          5PRNFsfxhpq0.exe
          • Path C:\Users\Admin\AppData\Roaming\{48cf2340-19df-11ee-a94e-806e6f6e6963}\5PRNFsfxhpq0.exe
          • Size 72KB
          • SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/3996-325-0x0000000000400000-0x0000000001380000-memory.dmp
          Download

          memory/3996-324-0x0000000000400000-0x0000000001380000-memory.dmp
          Download

          memory/3996-326-0x0000000000400000-0x0000000001380000-memory.dmp
          Download

          memory/3996-335-0x0000000000400000-0x0000000001380000-memory.dmp
          Download

          memory/4880-140-0x00000000007A0000-0x00000000007A1000-memory.dmp
          Download

          memory/4880-333-0x0000000000400000-0x00000000004B5000-memory.dmp
          Download

          memory/4880-334-0x00000000007A0000-0x00000000007A1000-memory.dmp
          Download

          memory/4928-134-0x0000000000400000-0x0000000000414000-memory.dmp
          Download

          memory/4928-331-0x0000000000400000-0x0000000000414000-memory.dmp
          Download