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Analysis

  • max time kernel
    30s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06/09/2024, 18:10

General

  • Target

    813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe

  • Size

    299KB

  • MD5

    38a55efd06cfd76ad153eb4e7b173d84

  • SHA1

    450a29c04a5364b6f64937162ef6476935f38159

  • SHA256

    813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024

  • SHA512

    d1009ed7f6832eacd19a2d2d6efa7c5b275cb33e10eb6bca9df111a360077492ea10151a2eacff8ab029ca914e09d5b7f9b09a7a61d72c164b92ecb3dd054539

  • SSDEEP

    6144:+uDUYxOOoC2iSlvfxcYrfpXb+REK5NgHBElhG4/MBC0Vdh1HQ:+mUHbC2Zlvfxvr+RP56HibYVdz

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

Signatures

  • GCleaner

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

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe
    "C:\Users\Admin\AppData\Local\Temp\813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe" & exit
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "813fbf2c1ab78f09d269895f0b2f8b5248bb049c8f4b3181c8729da0feb56024.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LW44N8OS\download[1].htm

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • \Users\Admin\AppData\Local\Temp\Gu8Qa3HGZ0PHWq03TGORz\Y-Cleaner.exe

    Filesize

    1.4MB

    MD5

    a8cf5621811f7fac55cfe8cb3fa6b9f6

    SHA1

    121356839e8138a03141f5f5856936a85bd2a474

    SHA256

    614a0362ab87cee48d0935b5bb957d539be1d94c6fdeb3fe42fac4fbe182c10c

    SHA512

    4479d951435f222ca7306774002f030972c9f1715d6aaf512fca9420dd79cb6d08240f80129f213851773290254be34f0ff63c7b1f4d554a7db5f84b69e84bdd

  • memory/2116-3-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2116-8-0x0000000010000000-0x000000001001C000-memory.dmp

    Filesize

    112KB

  • memory/2116-13-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2116-15-0x0000000000250000-0x000000000028B000-memory.dmp

    Filesize

    236KB

  • memory/2116-2-0x0000000000250000-0x000000000028B000-memory.dmp

    Filesize

    236KB

  • memory/2116-17-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/2116-18-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2116-1-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB

  • memory/2116-37-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2116-35-0x0000000000400000-0x0000000000451000-memory.dmp

    Filesize

    324KB

  • memory/2116-36-0x0000000000560000-0x0000000000660000-memory.dmp

    Filesize

    1024KB