Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-05-2022 14:22

General

  • Target

    a76608f42563198c86f4a7f10ea910cc.exe

  • Size

    374KB

  • MD5

    a76608f42563198c86f4a7f10ea910cc

  • SHA1

    8ea79e0e0523e9b7d1993ab08408d3b369c2a802

  • SHA256

    05a3028bc4f10ff3387b486c171178f7d5a4864de59f6693d2dcbdae035820d1

  • SHA512

    0bad64c511d78964da9397813876c49102cd34031dbdbd61304cef33136c82b3830bee8623ed7f4dc067f0b6c90956d5b04843c64b218458ad8a3cdf44378091

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings ⋅ 3 TTPs
  • suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

    suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

  • Downloads MZ/PE file
  • Executes dropped EXE ⋅ 1 IoCs
  • Checks computer location settings ⋅ 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL ⋅ 1 IoCs
  • Reads user/profile data of web browsers ⋅ 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service ⋅ 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices ⋅ 1 TTPs

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

  • Program crash ⋅ 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 64 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a76608f42563198c86f4a7f10ea910cc.exe
    "C:\Users\Admin\AppData\Local\Temp\a76608f42563198c86f4a7f10ea910cc.exe"
    Checks computer location settings
    Loads dropped DLL
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of WriteProcessMemory
    PID:836
    • C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe
      "C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe"
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1000
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 1420
      Program crash
      PID:1608

Network

MITRE ATT&CK Matrix

Command and Control

    Credential Access

    Execution

      Exfiltration

        Impact

          Initial Access

            Lateral Movement

              Privilege Escalation

                Replay Monitor

                00:00 00:00

                Downloads

                • C:\Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe
                  MD5

                  3f22bd82ee1b38f439e6354c60126d6d

                  SHA1

                  63b57d818f86ea64ebc8566faeb0c977839defde

                  SHA256

                  265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

                  SHA512

                  b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

                • \Users\Admin\Pictures\Adobe Films\NiceProcessX64.bmp.exe
                  MD5

                  3f22bd82ee1b38f439e6354c60126d6d

                  SHA1

                  63b57d818f86ea64ebc8566faeb0c977839defde

                  SHA256

                  265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

                  SHA512

                  b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

                • memory/836-54-0x0000000075381000-0x0000000075383000-memory.dmp
                • memory/836-55-0x00000000002DE000-0x00000000002FA000-memory.dmp
                • memory/836-56-0x00000000001C0000-0x00000000001F3000-memory.dmp
                • memory/836-57-0x0000000000400000-0x0000000002B7B000-memory.dmp
                • memory/836-58-0x0000000005FF0000-0x00000000061B0000-memory.dmp
                • memory/1000-60-0x0000000000000000-mapping.dmp
                • memory/1608-62-0x0000000000000000-mapping.dmp