Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    25-09-2021 06:18

General

  • Target

    9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe

  • Size

    360KB

  • MD5

    6e223f8e362245614a74d9865d0817b0

  • SHA1

    dd8d9ea9d62bcf6a7e69bbf6dd81457103bcc29e

  • SHA256

    9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e

  • SHA512

    36321cbe8c9b17a939241247baa27e204f51c2f8c8667cafd3ddd939159412ead8addf663b2285499396917f1bebe51cc9f1ec7c218645f877860010da5c4e1a

Malware Config

Signatures

  • RevcodeRat, WebMonitorRat

    WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.

  • suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup

    suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup

  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe
    "C:\Users\Admin\AppData\Local\Temp\9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3596
    • C:\Users\Admin\AppData\Local\Temp\9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe
      "C:\Users\Admin\AppData\Local\Temp\9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: RenamesItself
      PID:4168

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\Local\Temp\9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e.exe
    MD5

    6e223f8e362245614a74d9865d0817b0

    SHA1

    dd8d9ea9d62bcf6a7e69bbf6dd81457103bcc29e

    SHA256

    9bbd49dbf0098e342cbb8935f8f40c92a395d45c04ef00f5df08b6953e30ca9e

    SHA512

    36321cbe8c9b17a939241247baa27e204f51c2f8c8667cafd3ddd939159412ead8addf663b2285499396917f1bebe51cc9f1ec7c218645f877860010da5c4e1a

  • memory/3596-115-0x0000000000A40000-0x0000000000A41000-memory.dmp
    Filesize

    4KB

  • memory/3596-117-0x0000000005830000-0x0000000005831000-memory.dmp
    Filesize

    4KB

  • memory/3596-118-0x0000000002D40000-0x0000000002D42000-memory.dmp
    Filesize

    8KB

  • memory/3596-122-0x0000000005330000-0x000000000582E000-memory.dmp
    Filesize

    5.0MB

  • memory/4168-119-0x0000000000400000-0x00000000004C0000-memory.dmp
    Filesize

    768KB

  • memory/4168-120-0x00000000004BE2B0-mapping.dmp
  • memory/4168-123-0x0000000000400000-0x00000000004C0000-memory.dmp
    Filesize

    768KB