Analysis

  • max time kernel
    15s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-05-2022 21:51

General

  • Target

    0432c70314ff72c043ba26100ca4cdde73ab0835a1a603cb081927b78355df59.exe

  • Size

    124KB

  • MD5

    4a941c20ea45693c6ea35a1c255a2655

  • SHA1

    0aa45e376192dcbdd9c4f377949f36f1a3ec1b18

  • SHA256

    0432c70314ff72c043ba26100ca4cdde73ab0835a1a603cb081927b78355df59

  • SHA512

    014f15ddf87d8b3147c8eeb1f4abb793e688755dae0db95b25908b159ba1edf6d3a04af5509337f4d8485ba85ba494164017159309cade009337fb1d6073e83b

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

    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\0432c70314ff72c043ba26100ca4cdde73ab0835a1a603cb081927b78355df59.exe
    "C:\Users\Admin\AppData\Local\Temp\0432c70314ff72c043ba26100ca4cdde73ab0835a1a603cb081927b78355df59.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Common Files\PushWare\cpush.dll"
      2⤵
      • Loads dropped DLL
      • Modifies registry class
      PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    196KB

    MD5

    fada4a6ec005be09b1f8e522dbb0523b

    SHA1

    656fae532b081d19d37141e151cef8a7d6886d3e

    SHA256

    6c99c5b631a1b494a6b8e14841bd2dd0992389da4a875106e19741831343bcf4

    SHA512

    cb18a6f287e5f1069071233f42f543e8cd86be760efcf60a217670b45de384127bbdf24a90b7cfbfb1ffda7b52980ba631b8a52f3aa057c7e563901f78f87249

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

    196KB

    MD5

    fada4a6ec005be09b1f8e522dbb0523b

    SHA1

    656fae532b081d19d37141e151cef8a7d6886d3e

    SHA256

    6c99c5b631a1b494a6b8e14841bd2dd0992389da4a875106e19741831343bcf4

    SHA512

    cb18a6f287e5f1069071233f42f543e8cd86be760efcf60a217670b45de384127bbdf24a90b7cfbfb1ffda7b52980ba631b8a52f3aa057c7e563901f78f87249

  • memory/1648-54-0x0000000075F61000-0x0000000075F63000-memory.dmp
    Filesize

    8KB

  • memory/2020-55-0x0000000000000000-mapping.dmp