Analysis

  • max time kernel
    121s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2022 18:17

General

  • Target

    tmp.exe

  • Size

    2.3MB

  • MD5

    5debae710acc279440b0fb96ad7ba5ef

  • SHA1

    90d849a4c61b183b13dcce6a7622c0c9d569e96b

  • SHA256

    b60004cf3b319182c85d8feeae4d3fc9d9f7cec8dd7740b1f7731f1d21cb11a8

  • SHA512

    e83bcb367fe2b35a2e666f9873f765dc093286e71b5f8cb490e37964a92c57d0c570e42cf49df23bc81c751b3ee66f5a0fdcd2f2f657fe0c7c3c9298072e0001

  • SSDEEP

    49152:ojOcnDWdf0c37oGtkJ/5Hb4bd/nG78GDeYDCThetBdDdMJoTdtqhpP:mOcDaf0mkddod/nbGEadM

Malware Config

Signatures

  • 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 2 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\Pictures\Minor Policy\G3tJhC8CzLowF7a0nG0n7FYM.exe
      "C:\Users\Admin\Pictures\Minor Policy\G3tJhC8CzLowF7a0nG0n7FYM.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:3440
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /RU "Admin" /tr ""C:\Program Files (x86)\ClipManagerP0\ClipManager_Svc.exe"" /tn "LOLPA4DESK HR" /sc HOURLY /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2344
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /RU "Admin" /tr ""C:\Program Files (x86)\ClipManagerP0\ClipManager_Svc.exe"" /tn "LOLPA4DESK LG" /sc ONLOGON /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:4472
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:4904
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4272

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Defense Evasion

      Modify Registry

      1
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Collection

      Data from Local System

      1
      T1005

      Command and Control

      Web Service

      1
      T1102

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\Pictures\Minor Policy\G3tJhC8CzLowF7a0nG0n7FYM.exe
        Filesize

        161KB

        MD5

        a19ba7f0bf808aefee30b29e8f84fc83

        SHA1

        a339f81ccc84ab7c1f93a8f6add6e08fa64a46ef

        SHA256

        041f891934add72852c8fda245c95da959d7f98cc580383d198e42f2de039634

        SHA512

        73fa9a3d628ae63c8b52c1a16f7b5c6e0a958886b57c0b2c7ab523e4ce29f62f3655a576e04487550a05d559370dfc0882bbc4393b278ff1bffb66390d275c71

      • C:\Users\Admin\Pictures\Minor Policy\G3tJhC8CzLowF7a0nG0n7FYM.exe
        Filesize

        161KB

        MD5

        a19ba7f0bf808aefee30b29e8f84fc83

        SHA1

        a339f81ccc84ab7c1f93a8f6add6e08fa64a46ef

        SHA256

        041f891934add72852c8fda245c95da959d7f98cc580383d198e42f2de039634

        SHA512

        73fa9a3d628ae63c8b52c1a16f7b5c6e0a958886b57c0b2c7ab523e4ce29f62f3655a576e04487550a05d559370dfc0882bbc4393b278ff1bffb66390d275c71

      • memory/2344-135-0x0000000000000000-mapping.dmp
      • memory/3440-132-0x0000000000000000-mapping.dmp
      • memory/4472-136-0x0000000000000000-mapping.dmp