Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-04-2024 01:06

General

  • Target

    e8dc2f1287e54db1661563f05ebd1535_JaffaCakes118.exe

  • Size

    4.4MB

  • MD5

    e8dc2f1287e54db1661563f05ebd1535

  • SHA1

    14d2a586dab1c48197d3298f648d82d507ebe28a

  • SHA256

    57fd9194f07f05c74a6cc39978fbcc9e68eac67779d047de5df8afa19e567064

  • SHA512

    c59d33501a5f65066a22d38a3133a530e17d765c32b1487eaba605b275d480b72a870b80ef1ac2a83a8fca71a70a6ae549497f9e796034a4e26947ade6417693

  • SSDEEP

    98304:5v/TdEIfWt/9rGvP3Ia5BTT+mky9RK7NIOCttTYZ9:5DdEH1rGvPpBGu944Q9

Malware Config

Extracted

Family

cryptbot

C2

otteppp11.top

doorres03.top

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 16 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 3 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8dc2f1287e54db1661563f05ebd1535_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e8dc2f1287e54db1661563f05ebd1535_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\fykmplg.vbs"
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5056
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fykmplg.vbs"
        3⤵
        • Blocklisted process makes network request
        PID:2044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\huheaaoysui.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4792
      • C:\Users\Admin\AppData\Local\Temp\huheaaoysui.exe
        "C:\Users\Admin\AppData\Local\Temp\huheaaoysui.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\ythhgjmuoo.exe"
      2⤵
        PID:824
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\jvixemhwksfo.exe"
        2⤵
          PID:4648

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Defense Evasion

      Virtualization/Sandbox Evasion

      2
      T1497

      Credential Access

      Unsecured Credentials

      2
      T1552

      Credentials In Files

      2
      T1552.001

      Discovery

      Query Registry

      6
      T1012

      Virtualization/Sandbox Evasion

      2
      T1497

      System Information Discovery

      4
      T1082

      Collection

      Data from Local System

      2
      T1005

      Command and Control

      Web Service

      1
      T1102

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\_Files\_Information.txt
        Filesize

        4KB

        MD5

        e2a639fa5eada80d09e93a1eb88407fa

        SHA1

        55f971dd4b9aaf3e8f8d93ee3a85ba177d971274

        SHA256

        ae1e4f8ce11d5fde88c2c70c7e679e6a4807e399ad5d5c27c38e31205cd2a8d5

        SHA512

        b1a90c72fb9fdd445129b395e1f06b35d50d2b5c488ab5eba38dae7a3f01fbc0a368e070b5515705c513afba53c59a3cc1cd05b122892df37f86062800668255

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\_Files\_Screen_Desktop.jpeg
        Filesize

        46KB

        MD5

        905158869f408fbe4bbe10bdf7b2cf32

        SHA1

        a6445087797548190e1bbcad909d9217b756850b

        SHA256

        7f0e72b23918cf35a17cf03658445509581f8c64b53fc641822ce1d486b8a3ba

        SHA512

        5639d94b0f3d3e3da834859332a2967d5c352d2cbb0afbe3f61d25a69278c325eea3dbf29d6eeb0631b879f430db624e61862198349678140af606e5affbcc16

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\cmUdFIJQWAJHmw.zip
        Filesize

        40KB

        MD5

        ef5dbad7ad3298f25a86a3567e759353

        SHA1

        f3a1475e996c96b1f120c403b500a33d61d41a67

        SHA256

        3dc99545b4c3b5983590dd6e4ae323370f8069445d9912e09914bc1a5ab39b1f

        SHA512

        f0409ab03393a979f8da02c7459799abd7667339864108d6946295141ad3a083d9506137361fb215a54d715e5e6f3e98633e8791d1cbc8ea21492ef2beb0ce38

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\files_\system_info.txt
        Filesize

        676B

        MD5

        cdc692f4d77be6b7e74deb408683c99a

        SHA1

        d983852c43bce30fd7a14f349428c8d58f98137e

        SHA256

        464ef111738b03f1248375fdb4e4ad99c6a5e566c9199e227664e9c02a232d91

        SHA512

        3c98b2933edec2caa0aa459b0a203c2a95823480c524f2284b1513fc34573f7df054e8e7b5db8f1a7f4ec0fd9a8752257684d5f2553573b7720a077d94818a1d

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\files_\system_info.txt
        Filesize

        1KB

        MD5

        0da6a07f8799225fc2aaf8e4f28e4230

        SHA1

        2c117bf3690250e06417e773d8538d320ac2a828

        SHA256

        9f6196a20eb101710c92191f12691c152b0043480a5b579544c9bd7d1cf10fce

        SHA512

        4c7aba2451527c56213547683613861b726e355439e741fc1e680b5334aabb60cb3ae1950da70068fecc0c88206818400ae254682b054c7a6977b19470b73a3b

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\files_\system_info.txt
        Filesize

        7KB

        MD5

        31e4058982431e40f7df7af53413604b

        SHA1

        0f4d1fe6578b282719031b734e2e453d11eaa7d1

        SHA256

        4ea6e244b5c230597f6bdcb4a05f9e254fbe65bd4f452a3c7b94cf3041feb0fc

        SHA512

        f9a45e5cea73b977bb41b2bc721b6f381060b333d4a3d37848a9e83543f2f0712120b70c024dfc36a2618d1a8e2d60c2675ba25f96c3facc8a746882e5be10f4

      • C:\Users\Admin\AppData\Local\Temp\c6LNSWxZhbbG\hlRqQMLKdgiia.zip
        Filesize

        40KB

        MD5

        551c69cfe5b5c406245381666642fb21

        SHA1

        d4a17bd3e18fefebda71f66207a3357064ee1d48

        SHA256

        e55b2d8ae04da37bc572b0fe92e0184db259144850fa28b91233eb5c2c7ffd7c

        SHA512

        b5c5f32b7c1e35b042b9136258fe558c7eb6453d0cf77f7aa75fd9d3e07e5fea5cf73693caec7abfcbd21dd9e45e3dad6c79e68753b192674689244344b5ffc3

      • C:\Users\Admin\AppData\Local\Temp\fykmplg.vbs
        Filesize

        139B

        MD5

        ad62ebb5a0491621a89223ddfcef18b7

        SHA1

        c13ce9e23ad1b733deec809111d1096cb8a107dc

        SHA256

        bcef1c83663a4be52519f324198484a53a7a998b91bf7a2903d0cca338857710

        SHA512

        f4350083548c07d761ae4ca8e7c0940855410851ebedaacaac4de9444218101a3fc9f9914e50e7ebfed7f1893003323fc1a2e7f24304035719bf114d3309df6b

      • C:\Users\Admin\AppData\Local\Temp\huheaaoysui.exe
        Filesize

        2.2MB

        MD5

        5328b7379d636a677406363321cf566a

        SHA1

        ad8a0ec5442ed0e607cf95bc163be3e9b9a0fb4c

        SHA256

        560e45cf3ad6e3e922aa5509f52717a605fe65867222b3c878e49e2fff78fcf7

        SHA512

        9d73183e9e18c4c39531b37f9a810da60d40b61524ef2afdbaf3feed55d2a7ed626d6d69d42e0f9e4bc2f5bd167481b32d6bb5b8811972be2a546f26a188daab

      • memory/2840-21-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
        Filesize

        4KB

      • memory/2840-239-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-286-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-23-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
        Filesize

        4KB

      • memory/2840-24-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-25-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
        Filesize

        4KB

      • memory/2840-26-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
        Filesize

        4KB

      • memory/2840-27-0x0000000004B90000-0x0000000004B91000-memory.dmp
        Filesize

        4KB

      • memory/2840-28-0x0000000004C00000-0x0000000004C01000-memory.dmp
        Filesize

        4KB

      • memory/2840-29-0x0000000004C10000-0x0000000004C11000-memory.dmp
        Filesize

        4KB

      • memory/2840-20-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-284-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-280-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-278-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-272-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-270-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-235-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-267-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-264-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-22-0x0000000004BE0000-0x0000000004BE1000-memory.dmp
        Filesize

        4KB

      • memory/2840-240-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-261-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-258-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-244-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/2840-255-0x00000000000C0000-0x00000000005E4000-memory.dmp
        Filesize

        5.1MB

      • memory/4216-252-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-242-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-2-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-237-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-236-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-233-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB

      • memory/4216-4-0x0000000004F60000-0x0000000004F61000-memory.dmp
        Filesize

        4KB

      • memory/4216-5-0x0000000004F70000-0x0000000004F71000-memory.dmp
        Filesize

        4KB

      • memory/4216-3-0x0000000004F50000-0x0000000004F51000-memory.dmp
        Filesize

        4KB

      • memory/4216-1-0x0000000077574000-0x0000000077576000-memory.dmp
        Filesize

        8KB

      • memory/4216-6-0x0000000004F40000-0x0000000004F41000-memory.dmp
        Filesize

        4KB

      • memory/4216-0-0x0000000000590000-0x0000000000D1D000-memory.dmp
        Filesize

        7.6MB