Analysis

  • max time kernel
    148s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 23:10

General

  • Target

    lab_samples/b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe

  • Size

    659KB

  • MD5

    b3dc48d13f7d541fa583bf964c0603bf

  • SHA1

    1dbaa68adc0a592508f7ad715bfcdf79c17990d6

  • SHA256

    b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7

  • SHA512

    193bda0656a9d1be54dc655d9af3224ddccb78fc26aa77618fba1e3c36005a0368a200960cc28facc280df667f51a26bbef62282bbf8837cc036a41bfb8525f4

  • SSDEEP

    12288:JR2N+L3K6boxK6dSmiTwntcm3Kbjbgv8YXoNCMF6+yWiL4Wlsfppj4W:P8+L3UM6SIcsHj4N5F6+yW/W4XP

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\lab_samples\b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe
    "C:\Users\Admin\AppData\Local\Temp\lab_samples\b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Roaming\winapp\a2a2aa408cc23a822a0a8810ea804dbaa4bd21b23760a18a4712a4a0ec3c8eb6.exe
      C:\Users\Admin\AppData\Roaming\winapp\a2a2aa408cc23a822a0a8810ea804dbaa4bd21b23760a18a4712a4a0ec3c8eb6.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Windows\SYSTEM32\svchost.exe
        svchost.exe -k netsvcs
        3⤵
          PID:3524
    • C:\Users\Admin\AppData\Roaming\winapp\a2a2aa408cc23a822a0a8810ea804dbaa4bd21b23760a18a4712a4a0ec3c8eb6.exe
      C:\Users\Admin\AppData\Roaming\winapp\a2a2aa408cc23a822a0a8810ea804dbaa4bd21b23760a18a4712a4a0ec3c8eb6.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3108
      • C:\Windows\system32\svchost.exe
        svchost.exe -k netsvcs
        2⤵
          PID:1524

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Roaming\winapp\a2a2aa408cc23a822a0a8810ea804dbaa4bd21b23760a18a4712a4a0ec3c8eb6.exe

        Filesize

        659KB

        MD5

        b3dc48d13f7d541fa583bf964c0603bf

        SHA1

        1dbaa68adc0a592508f7ad715bfcdf79c17990d6

        SHA256

        b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7

        SHA512

        193bda0656a9d1be54dc655d9af3224ddccb78fc26aa77618fba1e3c36005a0368a200960cc28facc280df667f51a26bbef62282bbf8837cc036a41bfb8525f4

      • memory/1524-53-0x0000000140000000-0x0000000140023000-memory.dmp

        Filesize

        140KB

      • memory/1736-3-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/1736-5-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/1736-6-0x0000000002470000-0x00000000024AC000-memory.dmp

        Filesize

        240KB

      • memory/1736-1-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/1736-2-0x0000000002470000-0x00000000024AC000-memory.dmp

        Filesize

        240KB

      • memory/1736-0-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/3108-50-0x00000000013E0000-0x00000000016A9000-memory.dmp

        Filesize

        2.8MB

      • memory/3108-49-0x0000000001320000-0x00000000013DE000-memory.dmp

        Filesize

        760KB

      • memory/3108-48-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/3108-36-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/3524-31-0x0000025D23440000-0x0000025D23441000-memory.dmp

        Filesize

        4KB

      • memory/3524-24-0x0000000140000000-0x0000000140023000-memory.dmp

        Filesize

        140KB

      • memory/3524-22-0x0000000140000000-0x0000000140023000-memory.dmp

        Filesize

        140KB

      • memory/4944-20-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/4944-16-0x0000000010000000-0x0000000010007000-memory.dmp

        Filesize

        28KB

      • memory/4944-30-0x0000000002180000-0x0000000002181000-memory.dmp

        Filesize

        4KB

      • memory/4944-23-0x00000000027D0000-0x0000000002A99000-memory.dmp

        Filesize

        2.8MB

      • memory/4944-21-0x00000000026D0000-0x000000000278E000-memory.dmp

        Filesize

        760KB

      • memory/4944-15-0x0000000010000000-0x0000000010007000-memory.dmp

        Filesize

        28KB

      • memory/4944-14-0x00000000005F0000-0x00000000005F1000-memory.dmp

        Filesize

        4KB

      • memory/4944-13-0x0000000002120000-0x000000000215C000-memory.dmp

        Filesize

        240KB

      • memory/4944-12-0x0000000000400000-0x00000000004AD000-memory.dmp

        Filesize

        692KB

      • memory/4944-11-0x00000000005F0000-0x00000000005F1000-memory.dmp

        Filesize

        4KB