Analysis

  • max time kernel
    80s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-03-2023 21:44

General

  • Target

    FabFilter Total Bundle v2020.05.18 WIN/Setup FabFilter Total Bundle v2020.05.18.exe

  • Size

    34.7MB

  • MD5

    210b1ca457126bc2ae64c444efdd4fd7

  • SHA1

    371713fb69fecc495e435db6ceb4b2f057ae39c1

  • SHA256

    23770671feaf22bac335c523c15e875d89c80af6c6edb6294e134bedc4b4f823

  • SHA512

    0e289cf570f35f2cefe6fcafb932eceae484a399f643b4631c8a1886c004b89b224b9d0db4d6d78538f675a40cc39c5c775298595ef61f977caeff569ee11112

  • SSDEEP

    786432:BYu125JawuvFYRrQDXyW66yCsX0q+WpAgW2nHH11gQxeh:uuIHkviRrgiL6ybB79n11gQsh

Score
7/10

Malware Config

Signatures

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

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

  • Drops file in Program Files directory 47 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FabFilter Total Bundle v2020.05.18 WIN\Setup FabFilter Total Bundle v2020.05.18.exe
    "C:\Users\Admin\AppData\Local\Temp\FabFilter Total Bundle v2020.05.18 WIN\Setup FabFilter Total Bundle v2020.05.18.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4356
    • C:\Users\Admin\AppData\Local\Temp\is-FKOGH.tmp\Setup FabFilter Total Bundle v2020.05.18.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FKOGH.tmp\Setup FabFilter Total Bundle v2020.05.18.tmp" /SL5="$801AE,35976789,407040,C:\Users\Admin\AppData\Local\Temp\FabFilter Total Bundle v2020.05.18 WIN\Setup FabFilter Total Bundle v2020.05.18.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:4760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-43V20.tmp\ISSKINU.DLL

    Filesize

    357KB

    MD5

    f30afccd6fafc1cad4567ada824c9358

    SHA1

    60a65b72f208563f90fba0da6af013a36707caa9

    SHA256

    e28d16fad16bca8198c47d7dd44acfd362dd6ba1654f700add8aaf2c0732622d

    SHA512

    59b199085ed4b59ef2b385a09d0901ff2efde7b344db1e900684a425fc2df8e2010ca73d2f2bffa547040cb1dd4c8938b175c463ccc5e39a840a19f9aa301a6c

  • C:\Users\Admin\AppData\Local\Temp\is-43V20.tmp\ISSKINU.DLL

    Filesize

    357KB

    MD5

    f30afccd6fafc1cad4567ada824c9358

    SHA1

    60a65b72f208563f90fba0da6af013a36707caa9

    SHA256

    e28d16fad16bca8198c47d7dd44acfd362dd6ba1654f700add8aaf2c0732622d

    SHA512

    59b199085ed4b59ef2b385a09d0901ff2efde7b344db1e900684a425fc2df8e2010ca73d2f2bffa547040cb1dd4c8938b175c463ccc5e39a840a19f9aa301a6c

  • C:\Users\Admin\AppData\Local\Temp\is-43V20.tmp\R2RINNO.dll

    Filesize

    4KB

    MD5

    0f8bbab51c5f70093b7ed7dd825d68e8

    SHA1

    a96809560b3e9001124083937a339cf2453a94c8

    SHA256

    7fc4fa7f5cea34df0a6733527081886cfb1c49b369df2db454de87cc4e70bdb5

    SHA512

    7b824ad5d7ec786535106d98bc80c9350f35ac2b76d7ee20163e90becf076dfeaca4732c0ecbe2d3d84a2efef337c380d5548ca0123e69e66e30bb396f0b9b81

  • C:\Users\Admin\AppData\Local\Temp\is-43V20.tmp\SKIN.CJSTYLES

    Filesize

    813KB

    MD5

    5f87caf3f7cf63dde8e6af53bdf31289

    SHA1

    a2c3cc3d9d831acd797155b667db59a32000d7a8

    SHA256

    4731982b02b067d3f5a5a7518279a9265a49fb0f7b3f8dc3d61b82a5359d4940

    SHA512

    4875298d82037ef1fff1ee3c58a9059d8480274326c862729fcc56664ecb49e2692c3838948c66dc8336e4050469d831cbf1fbd79b66565ab673d2a67765109d

  • C:\Users\Admin\AppData\Local\Temp\is-43V20.tmp\SKIN.CJSTYLES

    Filesize

    813KB

    MD5

    5f87caf3f7cf63dde8e6af53bdf31289

    SHA1

    a2c3cc3d9d831acd797155b667db59a32000d7a8

    SHA256

    4731982b02b067d3f5a5a7518279a9265a49fb0f7b3f8dc3d61b82a5359d4940

    SHA512

    4875298d82037ef1fff1ee3c58a9059d8480274326c862729fcc56664ecb49e2692c3838948c66dc8336e4050469d831cbf1fbd79b66565ab673d2a67765109d

  • C:\Users\Admin\AppData\Local\Temp\is-FKOGH.tmp\Setup FabFilter Total Bundle v2020.05.18.tmp

    Filesize

    1.4MB

    MD5

    efca76c8036622c459a97a29fb999a4e

    SHA1

    bf3f1aa664942f03fd8458f49a5fb92853ef836c

    SHA256

    ad1b2414bd9bb475b2b6bdfea72c9be4cca50544ecffdd7298e9b47a2a01ceff

    SHA512

    f051a1d32e0b39cac89d5de91802b70e81d5aba8e10601b0540f5bf0579b446f3080408cc39884508e390b58715c9a69b98e3575e9adc7ecde7e72b95b3c9636

  • C:\Users\Admin\AppData\Local\Temp\is-FKOGH.tmp\Setup FabFilter Total Bundle v2020.05.18.tmp

    Filesize

    1.4MB

    MD5

    efca76c8036622c459a97a29fb999a4e

    SHA1

    bf3f1aa664942f03fd8458f49a5fb92853ef836c

    SHA256

    ad1b2414bd9bb475b2b6bdfea72c9be4cca50544ecffdd7298e9b47a2a01ceff

    SHA512

    f051a1d32e0b39cac89d5de91802b70e81d5aba8e10601b0540f5bf0579b446f3080408cc39884508e390b58715c9a69b98e3575e9adc7ecde7e72b95b3c9636

  • memory/4356-133-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/4760-180-0x0000000076EE0000-0x0000000076FC3000-memory.dmp

    Filesize

    908KB

  • memory/4760-185-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-156-0x0000000075CA0000-0x0000000075D1A000-memory.dmp

    Filesize

    488KB

  • memory/4760-157-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-158-0x0000000075CA0000-0x0000000075D1A000-memory.dmp

    Filesize

    488KB

  • memory/4760-159-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-160-0x0000000075CA0000-0x0000000075D1A000-memory.dmp

    Filesize

    488KB

  • memory/4760-161-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-162-0x0000000075CA0000-0x0000000075D1A000-memory.dmp

    Filesize

    488KB

  • memory/4760-163-0x0000000076550000-0x0000000076575000-memory.dmp

    Filesize

    148KB

  • memory/4760-164-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-165-0x0000000075CA0000-0x0000000075D1A000-memory.dmp

    Filesize

    488KB

  • memory/4760-167-0x0000000074850000-0x0000000074880000-memory.dmp

    Filesize

    192KB

  • memory/4760-166-0x0000000076550000-0x0000000076575000-memory.dmp

    Filesize

    148KB

  • memory/4760-168-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-169-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-170-0x0000000076550000-0x0000000076575000-memory.dmp

    Filesize

    148KB

  • memory/4760-171-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-172-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-173-0x0000000076EE0000-0x0000000076FC3000-memory.dmp

    Filesize

    908KB

  • memory/4760-174-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-175-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-176-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-177-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-178-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-179-0x0000000075D20000-0x0000000075DFC000-memory.dmp

    Filesize

    880KB

  • memory/4760-147-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-181-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-182-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-183-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-184-0x00000000754D0000-0x0000000075544000-memory.dmp

    Filesize

    464KB

  • memory/4760-150-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-186-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-187-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-188-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-189-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-191-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-190-0x00000000754D0000-0x0000000075544000-memory.dmp

    Filesize

    464KB

  • memory/4760-192-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-193-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-194-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-195-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-197-0x00000000754D0000-0x0000000075544000-memory.dmp

    Filesize

    464KB

  • memory/4760-198-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-199-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-196-0x0000000076550000-0x0000000076575000-memory.dmp

    Filesize

    148KB

  • memory/4760-200-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-201-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-203-0x00000000754D0000-0x0000000075544000-memory.dmp

    Filesize

    464KB

  • memory/4760-202-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-204-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-206-0x0000000075D20000-0x0000000075DFC000-memory.dmp

    Filesize

    880KB

  • memory/4760-205-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-207-0x0000000076EE0000-0x0000000076FC3000-memory.dmp

    Filesize

    908KB

  • memory/4760-208-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-209-0x0000000075B70000-0x0000000075C1F000-memory.dmp

    Filesize

    700KB

  • memory/4760-210-0x0000000075550000-0x0000000075760000-memory.dmp

    Filesize

    2.1MB

  • memory/4760-211-0x00000000754D0000-0x0000000075544000-memory.dmp

    Filesize

    464KB

  • memory/4760-212-0x0000000074690000-0x00000000747B2000-memory.dmp

    Filesize

    1.1MB

  • memory/4760-213-0x0000000007490000-0x00000000074F1000-memory.dmp

    Filesize

    388KB

  • memory/4760-214-0x0000000076580000-0x0000000076B33000-memory.dmp

    Filesize

    5.7MB

  • memory/4760-294-0x0000000000870000-0x0000000000871000-memory.dmp

    Filesize

    4KB

  • memory/4760-138-0x0000000000870000-0x0000000000871000-memory.dmp

    Filesize

    4KB