Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 20:11

General

  • Target

    175fbd495e1e67dc9e90b8e9b1f77ca5d89adbde3bf3ffae9bd5ecbe53750e27.exe

  • Size

    1.2MB

  • MD5

    5e7ddeea0fe1a35171d3fd5f20be44b2

  • SHA1

    815909a17584b54daf22e8180da126dad145f003

  • SHA256

    175fbd495e1e67dc9e90b8e9b1f77ca5d89adbde3bf3ffae9bd5ecbe53750e27

  • SHA512

    6825218feb64830a66b5e6211fe5a372b2bc2da7625f43647b8037f082adb62110ef671e186cd0c1be3b993a1072439319d23a70b4683ea3a85ca90ba67b2d5c

  • SSDEEP

    24576:ypni2fBswduqbfaK3jnqPhoRiWkClW1mTy+dGMH43ybCYvWT4kq0E2Itf9fNXp:wiKswUqr37QhoRZpTyV6IyGYO8Tntf9X

Malware Config

Extracted

Family

gcleaner

C2

85.31.45.39

85.31.45.250

85.31.45.251

85.31.45.88

Attributes
  • url_path

    /b.php

    /d.php

    /d.php

Signatures

  • GCleaner

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

  • Gcleaner family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies registry class 64 IoCs
  • Runs net.exe
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\175fbd495e1e67dc9e90b8e9b1f77ca5d89adbde3bf3ffae9bd5ecbe53750e27.exe
    "C:\Users\Admin\AppData\Local\Temp\175fbd495e1e67dc9e90b8e9b1f77ca5d89adbde3bf3ffae9bd5ecbe53750e27.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Users\Admin\AppData\Local\Temp\is-VKGU1.tmp\is-CLHDT.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VKGU1.tmp\is-CLHDT.tmp" /SL4 $5014E "C:\Users\Admin\AppData\Local\Temp\175fbd495e1e67dc9e90b8e9b1f77ca5d89adbde3bf3ffae9bd5ecbe53750e27.exe" 970734 84480
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 31
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:796
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 31
          4⤵
          • System Location Discovery: System Language Discovery
          PID:480
      • C:\Program Files (x86)\CLmeil\ckmeil525.exe
        "C:\Program Files (x86)\CLmeil\ckmeil525.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabA5A4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarA5B6.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Program Files (x86)\CLmeil\ckmeil525.exe

    Filesize

    1.8MB

    MD5

    0fb884732a9352f9e999b9467d34443d

    SHA1

    1a4ca64b9ec479dc92f6f2621a3c9fb971c9a1bf

    SHA256

    d26abdc0730520eed70527225776aff8b03c6af1cf87f7045a5110fbf7abbef5

    SHA512

    9119fd58ba93cd49e6877fb901d6a44589471aa911c02559bf0805626c6c8e408771d89bb81ad8d691c315bc1868bf6dc25bb9bbe1be160313637d00567ccfb9

  • \Program Files (x86)\Common Files\Outlook Security Manager\secman.dll

    Filesize

    137KB

    MD5

    ccad5c9028897be6f9ea4506772232fb

    SHA1

    20b74651813d446f98ac839dbbfc941707f3951d

    SHA256

    7c35caf0274232e4fbe501df3a24cb282bfe7c3d052bc50a388fd9a59de7b494

    SHA512

    50df823a32103e369320b66d746a0592a208fcf3cb2f90f874afb6b5ca9e1e515139f65f7477e5a322ade51683f778b6eea65af2250fd8ddd29f67fd60a5a8ca

  • \Users\Admin\AppData\Local\Temp\is-N8JRV.tmp\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-N8JRV.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-VKGU1.tmp\is-CLHDT.tmp

    Filesize

    676KB

    MD5

    d96f2e5b808c06c617d6d0be160b76f9

    SHA1

    1ae85eccf0834ee53b4a7fd44e06ec666caea838

    SHA256

    e8acb5a41fcb5eb6f87c4f253bfa66c85bf6796e5ae8e86083b2ab3adf7b5f5e

    SHA512

    b9dc562c2580ca857a93f514894b10dc5c7c076abc43b7567448ef0a86fea1af92b481d5d85a46c1bc0789f0e82d688a43ffcff73160ae571ea82a3b8496b1ab

  • memory/2580-48-0x0000000001B10000-0x0000000002ADE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-64-0x0000000000400000-0x00000000013CE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-47-0x0000000001B10000-0x0000000002ADE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-111-0x0000000000400000-0x00000000013CE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-49-0x0000000000400000-0x00000000013CE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-50-0x0000000000400000-0x00000000013CE000-memory.dmp

    Filesize

    15.8MB

  • memory/2580-63-0x0000000001B10000-0x0000000002ADE000-memory.dmp

    Filesize

    15.8MB

  • memory/2660-52-0x0000000000400000-0x00000000004D7000-memory.dmp

    Filesize

    860KB

  • memory/2660-62-0x00000000056A0000-0x000000000666E000-memory.dmp

    Filesize

    15.8MB

  • memory/2660-46-0x00000000056A0000-0x000000000666E000-memory.dmp

    Filesize

    15.8MB

  • memory/2660-32-0x0000000002020000-0x0000000002042000-memory.dmp

    Filesize

    136KB

  • memory/2660-112-0x0000000000400000-0x00000000004D7000-memory.dmp

    Filesize

    860KB

  • memory/2824-51-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2824-0-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2824-2-0x0000000000401000-0x000000000040A000-memory.dmp

    Filesize

    36KB

  • memory/2824-113-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB