Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    03-02-2024 13:18

General

  • Target

    8c6c1b198d895aacf4ccea121fbde47c.exe

  • Size

    191KB

  • MD5

    8c6c1b198d895aacf4ccea121fbde47c

  • SHA1

    0e6c1ba1f7dd454c509dca64bc2f43365f0b23fd

  • SHA256

    7250737c9c7a2c0bf8e838271e34e4b0f7f17ef8ac871cd32ccdb3e17ed0120f

  • SHA512

    b545d0ada76bd29904502b53d2ad20b1efe08cc0925232e7b8b7304d7906bef6e6791e368242dbc7398a8a0f33b449120e9ca0c1e54a2e5e7baa314238219db4

  • SSDEEP

    3072:p5esEn3NM0iAseO13gbnXp4HN2uY3EeWpzGZvlnSwFoCDvbO/4opwu:zCq0SepXpoN2uY3Ee8zalHFNDTOAa

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c6c1b198d895aacf4ccea121fbde47c.exe
    "C:\Users\Admin\AppData\Local\Temp\8c6c1b198d895aacf4ccea121fbde47c.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\Local\dplaysvr.exe
      "C:\Users\Admin\AppData\Local\dplaysvr.exe" C:\Users\Admin\AppData\Local\Temp\8c6c1b198d895aacf4ccea121fbde47c.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of UnmapMainImage
      PID:2732
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
    1⤵
      PID:2248

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\5744.tmp
      Filesize

      81KB

      MD5

      5569f25dfd9fda8b503a3bd9e16ddd47

      SHA1

      f8185aa05a1f24daefe97cf7593db45a69539489

      SHA256

      0e3bcf6d2e646b3025c6c8d7c70d4b36c0534076af1554b05b682460cd6c5955

      SHA512

      b07b6674c160947e253fedc2e7b3c07d97d545acbf043980771ba941f786e5f7f283f6a9f3d92b42b8aca3ecf7c8f21763ff2d21143829117581bc74fda796b1

    • C:\Users\Admin\AppData\Local\Temp\5745.tmp
      Filesize

      52KB

      MD5

      d99c8c5e66f0e9407591b0dc386d80c0

      SHA1

      67070c06a317ab0686e0080317b59f20a58e6403

      SHA256

      2dfaeabd8cff4d556e481308d200e0b2a683b7bbc89ac8a5ab4d10fe0a08fbb5

      SHA512

      b7e54e9ca534076d235c42b2b3e4595260a8e1263e0188e449f73d594ec72108dbb16fde8fc98e7a4f530f1f541af03bce1e57f12392a0a3a3cd0ed0522cf0e0

    • C:\Windows\System32\drivers\etc\hosts
      Filesize

      884B

      MD5

      53c2b14b258594b29d3d8aa172e93e66

      SHA1

      bec86a56ce8280abfb196a725db751c3be36c554

      SHA256

      2c7c7f676a02b7b09b66e3be5c99e22b59f14955c5eaa0c12ba3b4d80d527015

      SHA512

      2ecf62675d5c74d681010beb65a55555266ad067dde01ae57ec3db0d551df9d8160c50d2b6f9a6a0f44a7bea9ed6744dc95e69ebadfb4b35f46191ef1cfabaa7

    • memory/1640-4-0x0000000000400000-0x0000000000434000-memory.dmp
      Filesize

      208KB

    • memory/1640-0-0x0000000000440000-0x0000000000474000-memory.dmp
      Filesize

      208KB

    • memory/1640-37-0x0000000000400000-0x0000000000434000-memory.dmp
      Filesize

      208KB

    • memory/1640-32-0x0000000000400000-0x0000000000434000-memory.dmp
      Filesize

      208KB

    • memory/2732-28-0x00000000002C0000-0x00000000002D2000-memory.dmp
      Filesize

      72KB

    • memory/2732-24-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/2732-29-0x00000000772D0000-0x00000000772D1000-memory.dmp
      Filesize

      4KB

    • memory/2732-26-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/2732-27-0x0000000000280000-0x0000000000292000-memory.dmp
      Filesize

      72KB

    • memory/2732-30-0x0000000076DA0000-0x0000000076EB0000-memory.dmp
      Filesize

      1.1MB

    • memory/2732-33-0x00000000002E0000-0x00000000002E1000-memory.dmp
      Filesize

      4KB

    • memory/2732-31-0x00000000772CF000-0x00000000772D0000-memory.dmp
      Filesize

      4KB

    • memory/2732-34-0x00000000003C0000-0x00000000003C1000-memory.dmp
      Filesize

      4KB

    • memory/2732-22-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/2732-35-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/2732-36-0x00000000002C0000-0x00000000002D2000-memory.dmp
      Filesize

      72KB

    • memory/2732-21-0x0000000000230000-0x0000000000249000-memory.dmp
      Filesize

      100KB