Analysis

  • max time kernel
    291s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2024 05:05

General

  • Target

    66d97f40b83b98b4567bb98bbd8f4c4d79d44e731bbd607ecc7fd1d80ec41c55.exe

  • Size

    6.3MB

  • MD5

    86049b6becb16ab24d68b42ecdda5384

  • SHA1

    922ec3814d54e9c521aff3163e17e4ecfc80afd3

  • SHA256

    66d97f40b83b98b4567bb98bbd8f4c4d79d44e731bbd607ecc7fd1d80ec41c55

  • SHA512

    11bc6767342750951f8d55015a1d6c5cabaef161990e6d81dfcdebce1b9b1097e0489fa764f4be944d7f47ec5f65ecad6a9dad4c8657fe1e90d7ab35471f72f9

  • SSDEEP

    98304:swgfjPCkbYWdapDnxQlkBccFDe8nSArxRWl:sNJc5rmuc0IIRWl

Malware Config

Extracted

Family

cryptbot

C2

thirtvf13pt.top

analforeverlovyu.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66d97f40b83b98b4567bb98bbd8f4c4d79d44e731bbd607ecc7fd1d80ec41c55.exe
    "C:\Users\Admin\AppData\Local\Temp\66d97f40b83b98b4567bb98bbd8f4c4d79d44e731bbd607ecc7fd1d80ec41c55.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2448
    • 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:2716
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D534F4E9-6ACC-46FA-B795-F7946E085786} S-1-5-21-3434294380-2554721341-1919518612-1000:ELZYPTFV\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2732
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2624
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2900
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      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:2244
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1712-85-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/2244-70-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/2416-55-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/2448-18-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/2448-19-0x0000000074510000-0x000000007464C000-memory.dmp

    Filesize

    1.2MB

  • memory/2624-25-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/2900-40-0x0000000000360000-0x0000000000371000-memory.dmp

    Filesize

    68KB

  • memory/3032-0-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/3032-1-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB

  • memory/3032-15-0x0000000000400000-0x0000000001069000-memory.dmp

    Filesize

    12.4MB