Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 23:41

General

  • Target

    98314be4825f2c7d10644a2cdeccdcd8191690dbfdb514f3f9635ba31a075866.exe

  • Size

    41KB

  • MD5

    79e260a513f98d0e38814275ff375430

  • SHA1

    3b44c85110e60418d903e928142bf9bb30996995

  • SHA256

    98314be4825f2c7d10644a2cdeccdcd8191690dbfdb514f3f9635ba31a075866

  • SHA512

    95a210a5066a190ee4d251b05673918b8c836619f79e41c4c6a7dd228d13e26ede312ec81e5ded549c6e490fcbb5617c6d006d60503f71631fdee14e4d2d6b56

  • SSDEEP

    768:qeMc5VwWt1jDkbXdnTOyQxHFO+IxX2P5LIbbcPYir2lAqcdF0i09sy1+:qq5VwWDjDkdTRqHFOn8tIbbeYiuZIFS2

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 24 IoCs
  • 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 2 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
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98314be4825f2c7d10644a2cdeccdcd8191690dbfdb514f3f9635ba31a075866.exe
    "C:\Users\Admin\AppData\Local\Temp\98314be4825f2c7d10644a2cdeccdcd8191690dbfdb514f3f9635ba31a075866.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3632
      • 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
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:1672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    cfc42b78ca1950fc3a7db08566f08302

    SHA1

    a6060b22ccb6add1bc0bcf14d27dc1a31fcd9474

    SHA256

    c62e82a02ab2464d385a934212fbf9bd95b340c7c85f5821de3ae392fd4d2b0b

    SHA512

    1f402366781a87e544d2d3d17868be2f93dc5c22a8e97d63a688e111a0e252961c72b0c338512f1bf9c41c97210501986b34b53cca4b16c6c04ace59fe8c32b4

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    41KB

    MD5

    6b1df4dba2a5716e312204a5c36b0585

    SHA1

    fc6cf32105ec688ecd0d36888eba0ebca7eea832

    SHA256

    ea2b0486b7fcf1f8a32e2e07148202fbbfa8ca3ef0a508568cb8c1740666ac20

    SHA512

    4c8aa17d1ea34558418f992f83208fe91f42ebce7b1de37b21d44590aa8eda1e9cd9943bbae360b54bb4768bfabfc832a5ce128aa668b5bd2deca60728ad340e

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    de9e15465cb6fb8f271e9a6242d8a165

    SHA1

    e5558b406b444d2258bea34dceaeeea295190e40

    SHA256

    33580f88ebfe35cf9a09f85ae6080bfa1b00a74be335d987fe65bab8a0292a0d

    SHA512

    a79242335f6e6e0628a0b5a583badbc24d11f2380b1f80d2552aa37a3411c23f244d1d2de6d486a8cc03a5956f9fc343e1a68cb56be49d8f37d403d40a3236a1

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    34c2d5df50ef91b91c49d245bc3dce71

    SHA1

    920ff3a7fb13e0f8a1f2d45af88899e20f37c6a4

    SHA256

    4521962c7181135a44d7729221638ffdef9eb0e7034f7493a99a236388228c4e

    SHA512

    d301682f7417a6b3ca97514fb06bdf5b52a8047bfc1d079cd97e954feb44bac36629ef687b4b93bd938e8ab880a3452c66c9126531b26021d7896fa5941e0bf6

  • memory/1640-12-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1640-0-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1640-24-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1640-21-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-39-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-49-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-36-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1672-37-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-63-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-41-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-43-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-45-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-47-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-29-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-51-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-53-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-55-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-57-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-59-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1672-61-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3632-26-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB