Analysis

  • max time kernel
    20s
  • max time network
    28s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 06:51

General

  • Target

    620e7a30771c4374de11a50f139ad60204ae1845c923db8bd8980025343f5f5e.exe

  • Size

    124KB

  • MD5

    abd835a2045177eacb5b716ff9cd9fad

  • SHA1

    16d3bc8676a5160d5cd7e44f1fba8240e6dfa782

  • SHA256

    620e7a30771c4374de11a50f139ad60204ae1845c923db8bd8980025343f5f5e

  • SHA512

    b3636c65511f4065e561901a0b3f19b5b3896c2559ea47ee4c461615e6f8f41722ea6ae295aba0aa5fb6d328047121e3035316b6e5728295f12081c9d4576d69

  • SSDEEP

    3072:EmeDmBqskJT2DgzuLj17h1m5yHkspSqQ2fy75RqEnxBiEx9:E8xDgzuLjVOyEESq+RVbL9

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\620e7a30771c4374de11a50f139ad60204ae1845c923db8bd8980025343f5f5e.exe
    "C:\Users\Admin\AppData\Local\Temp\620e7a30771c4374de11a50f139ad60204ae1845c923db8bd8980025343f5f5e.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1224
    • 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:1812

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/1224-54-0x0000000075C41000-0x0000000075C43000-memory.dmp

    Filesize

    8KB

  • memory/1812-55-0x0000000000000000-mapping.dmp