Analysis

  • max time kernel
    11s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 12:11

General

  • Target

    740dab4935b164b6a6620bbd8f3281bbce5fb734dfa1b26bd294be1059ec242b.exe

  • Size

    124KB

  • MD5

    e17945af4d2ce685120b3696b8f67b44

  • SHA1

    503ede2abee00be53177e1b4f87327158d048853

  • SHA256

    740dab4935b164b6a6620bbd8f3281bbce5fb734dfa1b26bd294be1059ec242b

  • SHA512

    383917ab3be6ef29affa9b5fc19bbfb119a12c7bc1175020a04cf9aecc8ce56d5498facef5bf0668649e1b4d4ea2514195fc601acd995121d18d90062403bd8f

  • SSDEEP

    3072:EmeDmBqskJljspLC2rY4f+LZXMpUmZYsBSDYy0Q4odcy:E8W/eKQUmLBSkydVcy

Malware Config

Signatures

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

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

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\740dab4935b164b6a6620bbd8f3281bbce5fb734dfa1b26bd294be1059ec242b.exe
    "C:\Users\Admin\AppData\Local\Temp\740dab4935b164b6a6620bbd8f3281bbce5fb734dfa1b26bd294be1059ec242b.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Common Files\PushWare\cpush.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:1064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Common Files\PushWare\cpush.dll

    Filesize

    196KB

    MD5

    e4669fa29a5390df0704c8107fca71b4

    SHA1

    2696a62ba5821578c7672766e70bbace715f597d

    SHA256

    95c5f7c4b8f235e38d071d6139a18629af633441db0d9b323affc1292b92e165

    SHA512

    bcca7a81cad87c6ece5b2e9963603fb448b6242772685ebba4623a8ef9916975e41a7295de6eea22bb9ea5e66998259455d1bf4a9087116c5102dff3b76e32e9

  • \Program Files (x86)\Common Files\PushWare\cpush.dll

    Filesize

    196KB

    MD5

    e4669fa29a5390df0704c8107fca71b4

    SHA1

    2696a62ba5821578c7672766e70bbace715f597d

    SHA256

    95c5f7c4b8f235e38d071d6139a18629af633441db0d9b323affc1292b92e165

    SHA512

    bcca7a81cad87c6ece5b2e9963603fb448b6242772685ebba4623a8ef9916975e41a7295de6eea22bb9ea5e66998259455d1bf4a9087116c5102dff3b76e32e9

  • memory/1064-55-0x0000000000000000-mapping.dmp

  • memory/1228-54-0x0000000075E11000-0x0000000075E13000-memory.dmp

    Filesize

    8KB