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Analysis

  • max time kernel
    101s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    14/08/2024, 02:20

General

  • Target

    8e56525f13bc18c4c84e461f04f957f0N.exe

  • Size

    910KB

  • MD5

    8e56525f13bc18c4c84e461f04f957f0

  • SHA1

    0c2b3d3c65151314cf025b46b988486b9326eeb1

  • SHA256

    b0368ec19dad6310577ab0b937dc9f78fcff79b2b6fa649f2cbb4e45c1e8bdc8

  • SHA512

    cc894436ce7fbb036688936c56a4015a061690376fc0fc4360a25d9583a54c2871df071cae43b3fc92bd4ebf5f1aeebb1bf4ba32220230268e33991f13d0fb8f

  • SSDEEP

    12288:/n8yN0Mr8Zmk7aVs7IypwXK4Qzh+jMlWCEh/E8kj2fPWadHduXhus/REQpVCW:vPuZmkQIfpwiz0wy/E8c0sp5YW

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 9 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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.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:3008
    • 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:3060
    • C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2948
      • C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe
        "C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2392
        • C:\Users\Public\Microsoft Build\Isass.exe
          "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1476
          • C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe
            "C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2456
            • C:\Windows\Temp\{78B1654A-33E2-45CA-9CA0-F232C10AF268}\.cr\8e56525f13bc18c4c84e461f04f957f0N.exe
              "C:\Windows\Temp\{78B1654A-33E2-45CA-9CA0-F232C10AF268}\.cr\8e56525f13bc18c4c84e461f04f957f0N.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              PID:2968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    256KB

    MD5

    ff50b5d0f14788a29b1339dcd91a0900

    SHA1

    f78f7c8dd81d27cd9a1fd6ef295b2d42ff3bed85

    SHA256

    52c5071ede287e89c3d8518c075ad507264b030bd50b5c01488b9aeccac4b6d0

    SHA512

    17b32f0376e1f3fb919131b823881d7d512cddfa3eba9db2a2b0d8e2deb76f587b4f97a43c58b55f5ac937adfcee86916054c2f74539fcae642ab6987c6b627c

  • C:\Windows\Temp\{ECF16F3A-B36E-4EC4-B911-2EF857A2208A}\.ba\logo.png

    Filesize

    1KB

    MD5

    d6bd210f227442b3362493d046cea233

    SHA1

    ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

    SHA256

    335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

    SHA512

    464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

  • \Users\Admin\AppData\Local\Temp\8e56525f13bc18c4c84e461f04f957f0N.exe

    Filesize

    632KB

    MD5

    c27046bd35c5717084bb40c7305b941a

    SHA1

    51510a7753dd2a1236b34b495db21ef18a74c25c

    SHA256

    e0bc82c13bcd1ade084a0421dab88e23e9cc5499323449e585e7dd2116951bd3

    SHA512

    df9dc98043ea5b86c671e769a75e569366223c5a291f5eed22f68af9783a0aa295d8bb0ee0b510767cce7961f2e501124d9fe656044766644e18682f21446214

  • \Windows\Temp\{ECF16F3A-B36E-4EC4-B911-2EF857A2208A}\.ba\wixstdba.dll

    Filesize

    191KB

    MD5

    eab9caf4277829abdf6223ec1efa0edd

    SHA1

    74862ecf349a9bedd32699f2a7a4e00b4727543d

    SHA256

    a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041

    SHA512

    45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2

  • memory/1476-28-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2392-20-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/2948-18-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3008-17-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3008-14-0x0000000004260000-0x0000000005509000-memory.dmp

    Filesize

    18.7MB

  • memory/3008-9-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-83-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-15-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-79-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-80-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-16-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/3060-84-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-88-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-92-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-100-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-101-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-107-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-108-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB

  • memory/3060-114-0x0000000000400000-0x00000000016A8E52-memory.dmp

    Filesize

    18.7MB