Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2024 01:39

General

  • Target

    e1475c8d8760880e5d874a7bacb983cedda7691e507f7b1f89269333063239cc.exe

  • Size

    12.2MB

  • MD5

    b4a7565f5fe7f3fa54fa55734c050695

  • SHA1

    cb059c204ec0c030e29d41cddc7bc7e96a552b20

  • SHA256

    e1475c8d8760880e5d874a7bacb983cedda7691e507f7b1f89269333063239cc

  • SHA512

    72591ddf64e0d14dbb717ebeaf12feb559e49309541ab7035b3ea3f3005e25a8533a934764cc1bd6befe820c3e8d8371e356f68de3aee6a67f1e1b7d7f9e61ae

  • SSDEEP

    98304:kmCvsKdBHCa5b2MGm76yqmstR16ZcTLpJMvbqyxIJfJu0K7nB:ysKdBHCa5b2MGm765miRciJyxgRu0Mn

Malware Config

Extracted

Family

cryptbot

Signatures

  • CryptBot

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

  • 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 3 IoCs
  • Loads dropped DLL 3 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).

  • 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 2 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\e1475c8d8760880e5d874a7bacb983cedda7691e507f7b1f89269333063239cc.exe
    "C:\Users\Admin\AppData\Local\Temp\e1475c8d8760880e5d874a7bacb983cedda7691e507f7b1f89269333063239cc.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4480
    • 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:3788
      • 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,0x100,0xd4,0x104,0x7ffa24f3cc40,0x7ffa24f3cc4c,0x7ffa24f3cc58
        3⤵
          PID:1084
        • 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=2072,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2068 /prefetch:2
          3⤵
            PID:3620
          • 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=1904,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2116 /prefetch:3
            3⤵
              PID:4644
            • 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=2268,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2284 /prefetch:8
              3⤵
                PID:4784
              • 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=3208,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3216 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:3036
              • 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=3240,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3248 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:2692
              • 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=4356,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4596 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:2288
              • 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=4776,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4688 /prefetch:8
                3⤵
                  PID:4024
                • 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=4364,i,17087819987614115736,8319970767735042104,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4764 /prefetch:8
                  3⤵
                    PID:2124
                • 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:3312
                • 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:368
              • 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:1568
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  C:\Users\Admin\AppData\Local\Temp\/service123.exe
                  1⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:1972
                • C:\Users\Admin\AppData\Local\Temp\service123.exe
                  C:\Users\Admin\AppData\Local\Temp\/service123.exe
                  1⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:3956

                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/1972-69-0x0000000000E30000-0x0000000000E42000-memory.dmp

                  Filesize

                  72KB

                • memory/3312-61-0x0000000000E30000-0x0000000000E42000-memory.dmp

                  Filesize

                  72KB

                • memory/3312-62-0x0000000074D30000-0x0000000074E64000-memory.dmp

                  Filesize

                  1.2MB

                • memory/3956-84-0x0000000000E30000-0x0000000000E42000-memory.dmp

                  Filesize

                  72KB

                • memory/4480-9-0x0000000000380000-0x0000000000FBE000-memory.dmp

                  Filesize

                  12.2MB

                • memory/4480-47-0x0000000000380000-0x0000000000FBE000-memory.dmp

                  Filesize

                  12.2MB

                • memory/4480-59-0x0000000000380000-0x0000000000FBE000-memory.dmp

                  Filesize

                  12.2MB