Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    01-05-2024 20:16

General

  • Target

    33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe

  • Size

    203KB

  • MD5

    11f830f4b4cc6267a0e449b2f787b13d

  • SHA1

    a5e7cc1e94b68c57af294ffa0b18bd804ab1e91b

  • SHA256

    33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2

  • SHA512

    88cb1019b51e12fd1ed535451369e30b3e183b1e31ea66081d66f06b413920243a05bfdb0d4bcdf562e28b33b31709f852dae18621c264cb2970a46b41724b1f

  • SSDEEP

    3072:UzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIT3CDw+SKgyEA3tn8MqsyAx4/k:ULV6Bta6dtJmakIM5YCUwBtO+7Uk

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe
    "C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp118E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2192
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp121B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp118E.tmp

    Filesize

    1KB

    MD5

    738b8c70bec70e1b8baf7c485f8f21f1

    SHA1

    ce03d545d04974cddcb76d9271420e35aa3988fe

    SHA256

    20178631f0bf141384df0e447496346e0daf33208f7133da999b26a73af49b89

    SHA512

    648e80c0913af44a107e146c53bcff80746e1ed36866edc752f5815ffd3fae935ae47fc69e48c48efcf11685d3d4cf6b5b5276b8f06c9aba6d1fc170c571db48

  • C:\Users\Admin\AppData\Local\Temp\tmp121B.tmp

    Filesize

    1KB

    MD5

    93fc3117767507c9889abd12dc667d22

    SHA1

    1096e4cfa0c35756e3c3fb866c1e4c1e59115df9

    SHA256

    684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a

    SHA512

    e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc

  • memory/624-0-0x00000000745B1000-0x00000000745B2000-memory.dmp

    Filesize

    4KB

  • memory/624-1-0x00000000745B0000-0x0000000074B5B000-memory.dmp

    Filesize

    5.7MB

  • memory/624-2-0x00000000745B0000-0x0000000074B5B000-memory.dmp

    Filesize

    5.7MB

  • memory/624-10-0x00000000745B0000-0x0000000074B5B000-memory.dmp

    Filesize

    5.7MB