Analysis

  • max time kernel
    70s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    21-10-2021 10:21

General

  • Target

    efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.exe

  • Size

    10.1MB

  • MD5

    a65903fca5089fb8959cd9ea6c96da3b

  • SHA1

    0937bbe1199fdca67cad8836e0b3b109aead8fb6

  • SHA256

    efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1

  • SHA512

    5522fed40404d9eebadf550daaa7461c49bd0f95e397cf4c6564d993306877259bd32c2ee1ee234a2e5210ee52bbc0aea8248c2f1556e77b321ebd93348f9dcd

Malware Config

Signatures

  • ParallaxRat

    ParallaxRat is a multipurpose RAT written in MASM.

  • ParallaxRat payload 1 IoCs

    Detects payload of Parallax Rat, a small portable Rat usually digitally signed with a Sectigo certificate.

  • suricata: ET MALWARE Parallax CnC Response Activity M14

    suricata: ET MALWARE Parallax CnC Response Activity M14

  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 8 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.exe
    "C:\Users\Admin\AppData\Local\Temp\efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3364
    • C:\Users\Admin\AppData\Local\Temp\is-4KUJ3.tmp\efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4KUJ3.tmp\efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.tmp" /SL5="$30112,9529176,831488,C:\Users\Admin\AppData\Local\Temp\efeae42fa3e5f7e5b088384977e2cfc9296e26c53437c138c4e711a8815eaed1.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3960
      • C:\Users\Admin\AppData\Roaming\winhlp.exe
        "C:\Users\Admin\AppData\Roaming\winhlp.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:440
        • C:\Windows\SysWOW64\dllhost.exe
          "C:\Windows\system32\dllhost.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:1156
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe"
            5⤵
            • Blocklisted process makes network request
            • Drops file in Windows directory
            PID:1736

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/440-126-0x0000000000F91000-0x0000000000F94000-memory.dmp

    Filesize

    12KB

  • memory/1156-158-0x0000000000B00000-0x0000000000B08000-memory.dmp

    Filesize

    32KB

  • memory/1156-159-0x00007FFF31420000-0x00007FFF315FB000-memory.dmp

    Filesize

    1.9MB

  • memory/1156-137-0x0000000077579000-0x000000007757A000-memory.dmp

    Filesize

    4KB

  • memory/1156-141-0x0000000000860000-0x0000000000862000-memory.dmp

    Filesize

    8KB

  • memory/1736-166-0x0000000000E10000-0x0000000000E11000-memory.dmp

    Filesize

    4KB

  • memory/1736-168-0x0000000000E10000-0x0000000000E11000-memory.dmp

    Filesize

    4KB

  • memory/1736-171-0x0000000003240000-0x0000000003249000-memory.dmp

    Filesize

    36KB

  • memory/1736-172-0x00007FFF31420000-0x00007FFF315FB000-memory.dmp

    Filesize

    1.9MB

  • memory/1736-198-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3364-119-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/3960-120-0x0000000000950000-0x0000000000951000-memory.dmp

    Filesize

    4KB