Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:48

General

  • Target

    37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6.exe

  • Size

    30KB

  • MD5

    7ed898aa2a8b247f7c7a46d71b125ea8

  • SHA1

    b4c2625707fa9088ba093be8ce433454171cbec6

  • SHA256

    37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6

  • SHA512

    8c7fc56be39bcbf9c4b8267ee184237a7ce753fc0f7b6525eb11cf6733ea9bcdf3c021a37ba648e4c50a1404a6ea8e7b69cf82ae9c78cce9b089303501968fd5

  • SSDEEP

    384:8Ya0V/Sfz6O1gSrFhJmhAEEthzTm7Gk3p35G2A3ISV4GWWL7Uepc:8Y5Vu9x6hrCzTmj5G2/2WWLgee

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6.exe
    "C:\Users\Admin\AppData\Local\Temp\37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Users\Admin\AppData\Local\Temp\37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6.exe
      "C:\Users\Admin\AppData\Local\Temp\37bbf261819afd6fabb75cb8815d4651e09329ab5cb8fe0b01d376096f195ab6.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Users\Admin\AppData\Local\Temp\xwjfk.exe
        "C:\Users\Admin\AppData\Local\Temp\xwjfk.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Users\Admin\AppData\Local\Temp\xwjfk.exe
          "C:\Users\Admin\AppData\Local\Temp\xwjfk.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          PID:1568

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • C:\Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • C:\Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • \Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • \Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • \Users\Admin\AppData\Local\Temp\xwjfk.exe
    Filesize

    30KB

    MD5

    bc33e98b4a98334fc8d9620e513535b6

    SHA1

    26fa7ad57c3cdd688df5fa4ffea404e6b623ce6c

    SHA256

    66731adf5a629167c2fc7781c086f27bd4a25788e2cfcdb7c69e36868f2397ca

    SHA512

    ea7e47e7d99ad6434014e274d8907dce921b1bb58de95feb2f201a43b6e5c8f2d30b066fec7cfec187621aa47e62500a4fb34511b749f847ff6e8804795495e8

  • memory/1000-55-0x0000000000400000-0x0000000000403000-memory.dmp
    Filesize

    12KB

  • memory/1000-59-0x0000000000400000-0x0000000000403000-memory.dmp
    Filesize

    12KB

  • memory/1176-62-0x0000000000000000-mapping.dmp
  • memory/1176-70-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1672-54-0x0000000075201000-0x0000000075203000-memory.dmp
    Filesize

    8KB

  • memory/1672-57-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB