Analysis

  • max time kernel
    67s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/12/2023, 23:35

General

  • Target

    071c5bee94a2368e9fec5e885f9f03ed.exe

  • Size

    180KB

  • MD5

    071c5bee94a2368e9fec5e885f9f03ed

  • SHA1

    5783246d157b9c381e0ea501c22e628956eb99ee

  • SHA256

    7cbb3a25ea393f3e590f9b26a6d02457d3c3fe6eed2c418bf1b389ac58c12a61

  • SHA512

    a43de022e5b70d321296c112658a7dcb260222753d717b3fd6fa56725a4ca6515075a4d771eea626d199459e3104af297320379f37953ed96fb3eadc07cd45f0

  • SSDEEP

    3072:d5MurQVx3VKUq+2cE9EOB3vd2oCO001kai/rZtFCYu+CwNLYToAq:vHrgVKUX2LFd2pO001kaMrNCY5CWLH

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Unexpected DNS network traffic destination 9 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
    • Executes dropped EXE
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:468
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Executes dropped EXE
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1240
    • C:\Users\Admin\AppData\Local\Temp\071c5bee94a2368e9fec5e885f9f03ed.exe
      "C:\Users\Admin\AppData\Local\Temp\071c5bee94a2368e9fec5e885f9f03ed.exe"
      2⤵
      • Registers COM server for autorun
      • Suspicious use of SetThreadContext
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2808
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Deletes itself
        PID:2908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-18\$5fd2fe5a25dc242c20f3b15fb26cd3ad\@

    Filesize

    2KB

    MD5

    d89b0af08d2a615a1bf092f0ed69efc4

    SHA1

    2afdb5a5baf375d98921423671a869ad57e59884

    SHA256

    127b4725d11bcc049e0ca02914b353c5f02302f66361bf9eb4ce83dee45aa1d8

    SHA512

    c37991cf8fedd01ac60534b2cd4bd0a55b22e9e02e16b6d0181685da0600a9c5472879fa190606463eead20f20371ef9b4317d2b1c045610eb4f07b4b783cde1

  • C:\$Recycle.Bin\S-1-5-21-452311807-3713411997-1028535425-1000\$5fd2fe5a25dc242c20f3b15fb26cd3ad\n

    Filesize

    41KB

    MD5

    fb4e3236959152a057bc6b7603c538ef

    SHA1

    b25a70c07dd2eb1c9fdf89f7a2ffc286f226edf4

    SHA256

    8244ddfcba327a3f67a5582642c53241ee5e58d75808547cd74808bcded272d0

    SHA512

    993dbfbf71394ad1f120a8687d57eac2b9a55b11b1594aadd5a8d90edc0a26e5fd21f78317d342837ce27728613b5fc9c6ea40f86d17e5c477071be84f8aa3d2

  • memory/468-22-0x0000000000060000-0x0000000000061000-memory.dmp

    Filesize

    4KB

  • memory/468-15-0x0000000000060000-0x0000000000061000-memory.dmp

    Filesize

    4KB

  • memory/1240-6-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/1240-10-0x00000000029F0000-0x00000000029F1000-memory.dmp

    Filesize

    4KB

  • memory/1240-21-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2808-5-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2808-0-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2808-4-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/2808-3-0x00000000005D0000-0x0000000000602000-memory.dmp

    Filesize

    200KB

  • memory/2808-2-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2808-20-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2808-1-0x00000000003C0000-0x00000000003C1000-memory.dmp

    Filesize

    4KB