Analysis

  • max time kernel
    291s
  • max time network
    294s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    09-01-2022 16:29

General

  • Target

    00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2.exe

  • Size

    115KB

  • MD5

    a5bd0778a3baac35f9c40b06951b92be

  • SHA1

    442182ec444bad81041875380b2968041b4d3096

  • SHA256

    00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2

  • SHA512

    10e204c9b8439fc70f55206b5ed1a37708459535fe7b05a32d68dd215a65e20af17a96611665b583be0dc96ffc9e9cb44fc240f76a65fb8e30ea2226dfaf7b1c

Malware Config

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2.exe
    "C:\Users\Admin\AppData\Local\Temp\00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c copy "C:\Users\Admin\AppData\Local\Temp\00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2.exe" "C:\Users\Admin\AppData\Roaming\CacheMgr.exe"
      2⤵
        PID:2824
      • C:\Users\Admin\AppData\Roaming\CacheMgr.exe
        "C:\Users\Admin\AppData\Roaming\CacheMgr.exe" -as
        2⤵
        • Executes dropped EXE
        PID:2700

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\CacheMgr.exe
      MD5

      a5bd0778a3baac35f9c40b06951b92be

      SHA1

      442182ec444bad81041875380b2968041b4d3096

      SHA256

      00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2

      SHA512

      10e204c9b8439fc70f55206b5ed1a37708459535fe7b05a32d68dd215a65e20af17a96611665b583be0dc96ffc9e9cb44fc240f76a65fb8e30ea2226dfaf7b1c

    • C:\Users\Admin\AppData\Roaming\CacheMgr.exe
      MD5

      a5bd0778a3baac35f9c40b06951b92be

      SHA1

      442182ec444bad81041875380b2968041b4d3096

      SHA256

      00472b5baa597592dd522408cc6cec01eaec526ef8d0b709a9a9e2c09f7a97c2

      SHA512

      10e204c9b8439fc70f55206b5ed1a37708459535fe7b05a32d68dd215a65e20af17a96611665b583be0dc96ffc9e9cb44fc240f76a65fb8e30ea2226dfaf7b1c

    • memory/2476-115-0x00000000008F0000-0x0000000000901000-memory.dmp
      Filesize

      68KB

    • memory/2476-117-0x00000000001D0000-0x00000000001E5000-memory.dmp
      Filesize

      84KB

    • memory/2700-118-0x0000000000000000-mapping.dmp
    • memory/2700-121-0x0000000000870000-0x0000000000881000-memory.dmp
      Filesize

      68KB

    • memory/2700-122-0x0000000000580000-0x0000000000595000-memory.dmp
      Filesize

      84KB

    • memory/2824-116-0x0000000000000000-mapping.dmp