Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2023 12:05

General

  • Target

    053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe

  • Size

    249KB

  • MD5

    33862bca1fe73d44277e9ad4f0aa81e1

  • SHA1

    e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1

  • SHA256

    053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa

  • SHA512

    08c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c

  • SSDEEP

    6144:VFVg9EpWQxCKDgqLSV2hIq45K4O4xDL1UnhvHNJ7h0W93MPNdLM7G:/VgGD4KNWViIq4pOOPipHlzsQ7

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe
    "C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    249KB

    MD5

    33862bca1fe73d44277e9ad4f0aa81e1

    SHA1

    e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1

    SHA256

    053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa

    SHA512

    08c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    249KB

    MD5

    33862bca1fe73d44277e9ad4f0aa81e1

    SHA1

    e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1

    SHA256

    053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa

    SHA512

    08c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    249KB

    MD5

    33862bca1fe73d44277e9ad4f0aa81e1

    SHA1

    e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1

    SHA256

    053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa

    SHA512

    08c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c

  • memory/1416-347-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-345-0x0000000004F70000-0x0000000004F71000-memory.dmp

    Filesize

    4KB

  • memory/1416-350-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-349-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1416-348-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-352-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-346-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1416-351-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1416-191-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-188-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-186-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1416-183-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1416-181-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-353-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/1416-375-0x0000000002150000-0x0000000002160000-memory.dmp

    Filesize

    64KB

  • memory/2740-24-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-32-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-36-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-38-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-40-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-42-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-44-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-46-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-48-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-50-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-52-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-54-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-56-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-58-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-60-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-62-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-64-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-66-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-68-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-70-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-165-0x0000000005100000-0x0000000005101000-memory.dmp

    Filesize

    4KB

  • memory/2740-34-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-30-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-28-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-180-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2740-26-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-182-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2740-0-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2740-22-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-20-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-18-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-16-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-14-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-12-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-10-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-8-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-7-0x0000000005060000-0x0000000005094000-memory.dmp

    Filesize

    208KB

  • memory/2740-6-0x0000000002300000-0x0000000002310000-memory.dmp

    Filesize

    64KB

  • memory/2740-5-0x0000000002300000-0x0000000002310000-memory.dmp

    Filesize

    64KB

  • memory/2740-4-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2740-1-0x0000000074610000-0x0000000074BC1000-memory.dmp

    Filesize

    5.7MB