Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 07:08

General

  • Target

    773cb4acf9773f0816e4ecd48188e5ef9af85ffbd46d83cc6a63d682d47befc1.exe

  • Size

    614KB

  • MD5

    8a464fa26777347c8bbf50f857d326fd

  • SHA1

    18a759863d14946907a9486e4ff959e0f11f99e7

  • SHA256

    773cb4acf9773f0816e4ecd48188e5ef9af85ffbd46d83cc6a63d682d47befc1

  • SHA512

    acf59644d63db14f1a3e2ceb89f55a648a78f2e5a3ba0155fc7114cf5f40dc7f4eca6dd60448954c5a83d857a92ae3a16613787b21ec6b8fe215dded2b8ec2dc

  • SSDEEP

    12288:UYRN6Ul2gavsFJZC42Bu0aHpdjzwJ4baLN+gZPNOcmVuSR3O9cubDa:HKUl2wFJZCRBu0KA8VAnmVugubDa

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\773cb4acf9773f0816e4ecd48188e5ef9af85ffbd46d83cc6a63d682d47befc1.exe
    "C:\Users\Admin\AppData\Local\Temp\773cb4acf9773f0816e4ecd48188e5ef9af85ffbd46d83cc6a63d682d47befc1.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Users\Admin\AppData\Local\Temp\n7945\s7945.exe
      "C:\Users\Admin\AppData\Local\Temp\n7945\s7945.exe" 1300bd776831bd70fcf161bawAYvYoRy6Wdgl5wI3X1Bq93uE/1UqlMrUMcXk+CVJja8VtuMSiHWtD6w6sNKZTh96rA6ImXTKPNN8nP89cAfDgjIs71NG8FsbXHlW2ET3vqAvBY5QtUI4NRBF7PfxClYGOjkVdSmG9KhzgKDxFANgI25mBdOfNMBtTE= /v "C:\Users\Admin\AppData\Local\Temp\773cb4acf9773f0816e4ecd48188e5ef9af85ffbd46d83cc6a63d682d47befc1.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:996

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • C:\Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • \Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • \Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • \Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • \Users\Admin\AppData\Local\Temp\n7945\s7945.exe

    Filesize

    350KB

    MD5

    60f9fa6a5debd2cd96317dabe147c68b

    SHA1

    8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

    SHA256

    005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

    SHA512

    1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

  • memory/996-62-0x000007FEF3850000-0x000007FEF4273000-memory.dmp

    Filesize

    10.1MB

  • memory/996-63-0x000007FEF27B0000-0x000007FEF3846000-memory.dmp

    Filesize

    16.6MB

  • memory/996-64-0x0000000000AA6000-0x0000000000AC5000-memory.dmp

    Filesize

    124KB

  • memory/996-65-0x000007FEEE340000-0x000007FEEF1CF000-memory.dmp

    Filesize

    14.6MB

  • memory/996-66-0x000007FEF24C0000-0x000007FEF27AA000-memory.dmp

    Filesize

    2.9MB

  • memory/996-67-0x0000000000AA6000-0x0000000000AC5000-memory.dmp

    Filesize

    124KB

  • memory/1132-54-0x0000000075931000-0x0000000075933000-memory.dmp

    Filesize

    8KB