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Analysis

  • max time kernel
    149s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2025, 13:51

General

  • Target

    open-need-this-548.exe

  • Size

    9.1MB

  • MD5

    cb871641fdeeae993752fa4f5a9ce40b

  • SHA1

    c4ce33b0d1bd3793661ad46f4e89251fc98d8278

  • SHA256

    baaafe3a19db746baca67075a25066153cbe0bce08da3d536d9f76cd8182fd85

  • SHA512

    1ec42e576fb562296683ecdfb26e4818ad7580de626686baab5de728cc38ee79c8f78dbd8ad78e2bc465685804fd42aa188bfa06387a8cb321b9eb17f6586d5b

  • SSDEEP

    49152:K4RLvVjkP+8lZ3xp+q32Jc/APchP3Nz42XgYPxA2kUhUWQhboqxsKJb3HPyz8d72:K41G+8lVRmJgYch3RNwYqwSAKNyz8dy

Malware Config

Extracted

Family

cryptbot

C2

http://home.thrtcc13vs.top/HQLTbjPjafkPSoCHIYmY1739702807

Signatures

  • CryptBot

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

  • Cryptbot family
  • Detects CryptBot payload 1 IoCs

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

  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Uses browser remote debugging 2 TTPs 4 IoCs

    Can be used control the browser and steal sensitive information such as credentials and session cookies.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\open-need-this-548.exe
    "C:\Users\Admin\AppData\Local\Temp\open-need-this-548.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --profile-directory="Default"
      2⤵
      • Uses browser remote debugging
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ff93752cc40,0x7ff93752cc4c,0x7ff93752cc58
        3⤵
          PID:1612
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1596,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=1732 /prefetch:2
          3⤵
            PID:3768
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2152,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=2144 /prefetch:3
            3⤵
              PID:4112
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2252,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=2440 /prefetch:8
              3⤵
                PID:1996
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3140,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=3160 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:704
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3180,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=3208 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:908
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=3804,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=4388 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:852
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4744,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=4580 /prefetch:8
                3⤵
                  PID:2616
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4556,i,8674361722185649673,171283954575903749,262144 --variations-seed-version=20250216-180425.389000 --mojo-platform-channel-handle=4584 /prefetch:8
                  3⤵
                    PID:1052
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  PID:1952
                • 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:2032
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 1632
                  2⤵
                  • Program crash
                  PID:2416
              • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                1⤵
                  PID:1408
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2240 -ip 2240
                  1⤵
                    PID:2504
                  • C:\Users\Admin\AppData\Local\Temp\service123.exe
                    C:\Users\Admin\AppData\Local\Temp\/service123.exe
                    1⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:4540

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                    Filesize

                    2B

                    MD5

                    d751713988987e9331980363e24189ce

                    SHA1

                    97d170e1550eee4afc0af065b78cda302a97674c

                    SHA256

                    4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                    SHA512

                    b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                  • memory/1952-65-0x0000000000770000-0x0000000000782000-memory.dmp

                    Filesize

                    72KB

                  • memory/1952-66-0x0000000073890000-0x00000000739C4000-memory.dmp

                    Filesize

                    1.2MB

                  • memory/2240-0-0x0000000069CC0000-0x000000006A71B000-memory.dmp

                    Filesize

                    10.4MB

                  • memory/2240-9-0x00000000002F0000-0x0000000000C14000-memory.dmp

                    Filesize

                    9.1MB

                  • memory/2240-40-0x00000000002F0000-0x0000000000C14000-memory.dmp

                    Filesize

                    9.1MB

                  • memory/2240-51-0x00000000002F0000-0x0000000000C14000-memory.dmp

                    Filesize

                    9.1MB

                  • memory/2240-63-0x00000000002F0000-0x0000000000C14000-memory.dmp

                    Filesize

                    9.1MB

                  • memory/4540-77-0x0000000000770000-0x0000000000782000-memory.dmp

                    Filesize

                    72KB