Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 02:49

General

  • Target

    aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe

  • Size

    2.3MB

  • MD5

    1c13427a7ddc829218e0edf6e4423130

  • SHA1

    1fbe3c26ec2d3fbeb2cf51ae94bf9251b796bdb1

  • SHA256

    aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139

  • SHA512

    a2e59bedbda23c95c4aa4ee1024de618cb86c17c1017bd3c775e3df05389f57027fef142be115b91124f9b9759f19296646b01c95720d2a3037dbf7a06c63de3

  • SSDEEP

    49152:Bjvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:BrkI9rSjA5aDo73pzF2bz3p9y4HgIoov

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • 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.

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe
    "C:\Users\Admin\AppData\Local\Temp\aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3900
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    59caf59233644cda2841b7d1389d7759

    SHA1

    40e394151b2cc9edcd4f785ab6f3dcf6ae2589af

    SHA256

    6f3ceeb780a635f6e1df1fd7fe99a995aeb246cedd0f03a99965301bb5304bf5

    SHA512

    97aa7d890bc82bdcdb6ee321ed2aaea48bad76a9c325b590ab5dc591255eb15871ae6934532b54157eb32c732986f3196a63f2fd1fb274bcfb112550eaa87b7f

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    2.3MB

    MD5

    90b1ed3a7c75c4abf39eec6682ac7f64

    SHA1

    bf294958035876133ca6f1228524e1fd9b76d2a3

    SHA256

    1e3edd7b1039be0d2d99be63eff4456493f0779ef024686d590aca06bf0b7ea5

    SHA512

    aa73d82f9bbe9c483fb1988e41eea3d1441b4ed88523386c9a70b4f1db1fef2ae94cf031786dad3aa92a8fa5871e28b349f7b2e17f68ceb6dd53c9aa62c2e2a5

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    a2029cebd02ae2a9785fee3740b75518

    SHA1

    5b814657fd0a377d57a94276ae2994291701bd2b

    SHA256

    ac6fdb052f5fa19333e33b010c7778f9e0a08081d38cfc697bc05d741fc99a67

    SHA512

    d4a0bfb69b7e34b5f722c9cec7cebe0c783e387caceadffff791a4123d99a9cdfd7ffd54661ccb0ca9b56b3e9989e68d58d39cdcec15c93e03138c2bec264ca8

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    61a3f5f649dbb54dfef2d37f130f74f9

    SHA1

    6726c1cb82f4942d80ca6825a7ba5e2e4bad3a76

    SHA256

    63298cb555cc397a45de22c9128abc810dfdf1649cc4fc5e203294df138a60b5

    SHA512

    70ba02c989e2b84ce3fa61e60e932d5af7e6da21184c561e5f76d919c0c2955f00f056dc62b56f7080b5392a873cff7fff7a8090598df78d8cc9835ca48958ab

  • memory/2316-25-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2316-1-0x000000007FA70000-0x000000007FE41000-memory.dmp

    Filesize

    3.8MB

  • memory/2316-0-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/2316-31-0x000000007FA70000-0x000000007FE41000-memory.dmp

    Filesize

    3.8MB

  • memory/2316-14-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2316-27-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/3900-23-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3900-29-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4772-43-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-50-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-34-0x000000007FA70000-0x000000007FE41000-memory.dmp

    Filesize

    3.8MB

  • memory/4772-42-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-45-0x000000007FA70000-0x000000007FE41000-memory.dmp

    Filesize

    3.8MB

  • memory/4772-33-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-44-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/4772-46-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-48-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-40-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/4772-52-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-54-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-56-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-58-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-60-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-62-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB

  • memory/4772-64-0x0000000000400000-0x0000000000DCE000-memory.dmp

    Filesize

    9.8MB