Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-10-2024 11:45

General

  • Target

    edcfd597c25d5df5ea24991d7ce75f4e.exe

  • Size

    7.3MB

  • MD5

    edcfd597c25d5df5ea24991d7ce75f4e

  • SHA1

    bcedf5e72d27059ec74dacdabbf3cbe501b8fa91

  • SHA256

    973a2e2e7f9c31d20204af94689d261d56e646c00b29121709035070b0069220

  • SHA512

    63e5b3d73b58aabbe7f12d709e9a3e0ca7bc26cf191f4c7735b2812f860344a8b1ffb8f88b5262e94cfc9221e8f4020a84b72c709140d4117d508584b7dba029

  • SSDEEP

    49152:wzM1L/IWew6svVbsEDydOsVkM49O7ZrsJ9BZzewoN6kzZO+LnXn0ENt9N6GSvf0Y:J6CpDkO/MSOtrsiwoB

Malware Config

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Detects CryptBot payload 1 IoCs

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\edcfd597c25d5df5ea24991d7ce75f4e.exe
    "C:\Users\Admin\AppData\Local\Temp\edcfd597c25d5df5ea24991d7ce75f4e.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:292
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2956
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9ABD0EAC-9C95-42B9-B0F5-0CC1E464A53D} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/292-31-0x0000000000840000-0x0000000000852000-memory.dmp

    Filesize

    72KB

  • memory/292-32-0x0000000074860000-0x0000000074994000-memory.dmp

    Filesize

    1.2MB

  • memory/1464-36-0x0000000000840000-0x0000000000852000-memory.dmp

    Filesize

    72KB

  • memory/2416-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

    Filesize

    6.7MB

  • memory/2416-9-0x0000000001060000-0x00000000017B8000-memory.dmp

    Filesize

    7.3MB

  • memory/2416-28-0x0000000001060000-0x00000000017B8000-memory.dmp

    Filesize

    7.3MB