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Analysis

  • max time kernel
    120s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/09/2024, 23:04

General

  • Target

    e4b35a4db8ac1d6237a5d8e43940c670N.exe

  • Size

    463KB

  • MD5

    e4b35a4db8ac1d6237a5d8e43940c670

  • SHA1

    a3f96d0bd462f173d1a66c18b356a4dff026bb2c

  • SHA256

    7a0fd5b18243f89e7593ce6586543abfad775939120e368994342e982d2eb4fe

  • SHA512

    bbc53863082ae1bbc21fc9c8c7dccc544b8052240b35ad6011ac8234edad76e0fd12475e80a59a726b6c406c20d0e06c83b45a3ac7e2973c81c7089cd6f1f33f

  • SSDEEP

    6144:6SkWcDpi78KSrafqV5areuyFwBqgmGNGXN/O8OCLGzVUPtud7WHDUJVpCMZCWfGH:6Slc87eqqV5e+wBV6O+Kz8ty7hZLLfG

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of UnmapMainImage
    PID:3584
    • C:\Users\Admin\AppData\Local\Temp\e4b35a4db8ac1d6237a5d8e43940c670N.exe
      "C:\Users\Admin\AppData\Local\Temp\e4b35a4db8ac1d6237a5d8e43940c670N.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Users\Admin\AppData\Roaming\atinit\esenstsc.exe
        "C:\Users\Admin\AppData\Roaming\atinit"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Users\Admin\AppData\Local\Temp\~809A.tmp
          3584 474632 1540 1
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2368
  • C:\Windows\SysWOW64\dxdivr32.exe
    C:\Windows\SysWOW64\dxdivr32.exe -s
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~809A.tmp

    Filesize

    8KB

    MD5

    86dc243576cf5c7445451af37631eea9

    SHA1

    99a81c47c4c02f32c0ab456bfa23c306c7a09bf9

    SHA256

    25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a

    SHA512

    c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

  • C:\Users\Admin\AppData\Roaming\atinit\esenstsc.exe

    Filesize

    463KB

    MD5

    3b67a2dc3750404746d757e3938158e7

    SHA1

    2dd000e418aefbab80227aa0a3aceb39fe847af8

    SHA256

    905ca6affee2e24a9bf2e318e009c0e6b184d2967e8209faf3e4354e52af6154

    SHA512

    10fe03f8e3db7b399bcfe2bcbcb9274ab50218345312458c7f4715298b4a27c30a9cdb746735643e9ced9a722145596ecce828bd3ff5f352e4476135f4581f39

  • memory/1344-1-0x0000000000570000-0x00000000005EC000-memory.dmp

    Filesize

    496KB

  • memory/1344-0-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/1344-15-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/1540-6-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/1540-11-0x0000000000550000-0x00000000005CC000-memory.dmp

    Filesize

    496KB

  • memory/1540-13-0x0000000000620000-0x0000000000625000-memory.dmp

    Filesize

    20KB

  • memory/1540-29-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/1984-12-0x0000000000550000-0x00000000005CC000-memory.dmp

    Filesize

    496KB

  • memory/1984-10-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/3584-19-0x0000000008860000-0x00000000088E3000-memory.dmp

    Filesize

    524KB

  • memory/3584-27-0x0000000007670000-0x000000000767D000-memory.dmp

    Filesize

    52KB

  • memory/3584-28-0x0000000007660000-0x0000000007666000-memory.dmp

    Filesize

    24KB

  • memory/3584-24-0x0000000008860000-0x00000000088E3000-memory.dmp

    Filesize

    524KB