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Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21/08/2024, 19:56

General

  • Target

    f11c7bce06ba3ffcb49c370e81607da0N.exe

  • Size

    538KB

  • MD5

    f11c7bce06ba3ffcb49c370e81607da0

  • SHA1

    43c21f0230ed183d9da37d68411dff6002bc8907

  • SHA256

    86e32debc724ab505081f11fd3fc8088cdf26654411053deb76a4aec3d7e665a

  • SHA512

    e59b0ba543ca9fa6b457f578481072745a4571f2cd3f351226ecaa513b6260e189cc5af9811d6f0c7373e3c9902b3ef632d8b6c9cae18663932697f4ec20f453

  • SSDEEP

    12288:/n8yN0Mr8ZJJw1jm0Uq+pnWHDiZPWho5hWcrIm+xM/EWGKWYuaP:vPuZJK1Kbgq+h2rdjWYb

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
    "C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2688
    • C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
        "C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Public\Microsoft Build\Isass.exe

    Filesize

    216KB

    MD5

    0609171772ed1682bd6adb41673f32b2

    SHA1

    75456deb7fe05cc2a5806623b6b216bc4fc47243

    SHA256

    de84bb36c0b33b5ddc3f6d54c8b087649b51e8cf8a80bace4fd92258d46443e3

    SHA512

    693c912a8253c62a446f072035f9775dfce0c45b0160710ee4bf8a0c296af0f9fcda24b22bc24050d837338b22371bc6eecd6f3e8ed7e0bde8b13b56e83ce778

  • \Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe

    Filesize

    284KB

    MD5

    a42b35f975d88c1370a7aff084ee57a7

    SHA1

    bee1408fe0b15f6f719f003e46aee5ec424cf608

    SHA256

    56cc9e7e3767c0cffae8161bf0ad13457487c1b422e2879b897dbd4bab115776

    SHA512

    b92d05515e18277db660118934e70678ee2a3bb66005bad19bb417ffaedb22a63727a5a697ca3ac0f6c48f6f5593ba45ab80f4ebdc0eaed10d80b7af04d45b23

  • memory/2364-25-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2640-8-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2640-11-0x0000000004560000-0x0000000005809000-memory.dmp

    Filesize

    18.7MB

  • memory/2640-9-0x0000000004560000-0x0000000005809000-memory.dmp

    Filesize

    18.7MB

  • memory/2640-15-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2640-17-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-26-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-39-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-12-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-27-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-30-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-31-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-38-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-16-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2688-47-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-48-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-54-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-55-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-64-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2688-65-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB