Analysis

  • max time kernel
    4294209s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    20-03-2022 01:28

General

  • Target

    8ea3556813e7d871f37b1d3954c278a08da132f48f5d5c475c075415b9adba9f.exe

  • Size

    1.6MB

  • MD5

    2418bc399c5e287e7c25c7c0d83a5c13

  • SHA1

    a3e6d95474651b6ccd55cf125c898792507fc958

  • SHA256

    8ea3556813e7d871f37b1d3954c278a08da132f48f5d5c475c075415b9adba9f

  • SHA512

    cc548c5b2e1281185c53ee8d941f8e681cf9a3f11df20e7b1eb98ea07b1521b02677e7e4b7f8ae1dc6ffcdfc477ce7ba1c3e862c6a671a01e7dd147206dd19a2

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.

  • WebMonitor Payload 3 IoCs
  • suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup

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

  • UPX packed file 7 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ea3556813e7d871f37b1d3954c278a08da132f48f5d5c475c075415b9adba9f.exe
    "C:\Users\Admin\AppData\Local\Temp\8ea3556813e7d871f37b1d3954c278a08da132f48f5d5c475c075415b9adba9f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uuLZHftKjZYI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A57.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1692
    • C:\Users\Admin\AppData\Local\Temp\8ea3556813e7d871f37b1d3954c278a08da132f48f5d5c475c075415b9adba9f.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6A57.tmp

    MD5

    8f97099b9591f64bf3d77a5740f21d5b

    SHA1

    2aee141d9c43bfcb9cdca015f63f4fd13d31fd0e

    SHA256

    ee39f49e221dacc767516f7f7c8edb67d44b968c8895b7dbc858c955751194c3

    SHA512

    28a0be35f0f10250d5695edb71ed5b19d1690e746af89c9e6e616b8076b139e3e7d7c6f36055c8afec1a516d5de95ace6078f3ce3bcbb05a3cc607d139bc7e0f

  • memory/960-68-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-70-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-72-0x0000000002D40000-0x0000000003D40000-memory.dmp

    Filesize

    16.0MB

  • memory/960-71-0x0000000074C91000-0x0000000074C93000-memory.dmp

    Filesize

    8KB

  • memory/960-67-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-60-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-64-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-66-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-62-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/960-69-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/1764-56-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

    Filesize

    4KB

  • memory/1764-54-0x0000000000E80000-0x0000000001028000-memory.dmp

    Filesize

    1.7MB

  • memory/1764-55-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1764-58-0x0000000005E30000-0x0000000005F70000-memory.dmp

    Filesize

    1.2MB

  • memory/1764-57-0x00000000003D0000-0x00000000003DA000-memory.dmp

    Filesize

    40KB