Resubmissions

27/07/2024, 19:36

240727-ybcnssyanh

26/07/2024, 02:33

240726-c1w8vatglh

22/07/2024, 16:15

240722-tql4kawcra10

22/07/2024, 15:58

240722-tevxbswejn10

22/07/2024, 15:53

240722-tb1y6swcrn10

22/07/2024, 15:37

240722-s2ryhsvhnr10

Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/07/2024, 15:58

General

  • Target
    Jako Gen Source Code.exe
  • Size 203KB
  • Sample240722-tevxbswejn
  • SHA256 e8713b84ea80e0553edb04dfbdcf5feb8d5ff57ee116c5f77e092b08a9898f8b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Jako Gen Source Code.exe
    "C:\Users\Admin\AppData\Local\Temp\Jako Gen Source Code.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA9DC.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1952
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAA99.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1140
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4720
    • 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" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.106 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffb9762cc40,0x7ffb9762cc4c,0x7ffb9762cc58
      2⤵
        PID:3156
      • 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=1928,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=1924 /prefetch:2
        2⤵
          PID:224
        • 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=2104,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=2168 /prefetch:3
          2⤵
            PID:3732
          • 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=2256,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=2452 /prefetch:8
            2⤵
              PID:1948
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3152,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3172 /prefetch:1
              2⤵
                PID:1044
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3204,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3196 /prefetch:1
                2⤵
                  PID:3940
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4604,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3696 /prefetch:1
                  2⤵
                    PID:4728
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4844,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4804 /prefetch:8
                    2⤵
                      PID:4296
                    • 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=4908,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4920 /prefetch:8
                      2⤵
                        PID:3104
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=5344,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5352 /prefetch:8
                        2⤵
                        • Drops file in System32 directory
                        • Suspicious behavior: EnumeratesProcesses
                        PID:4552
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --field-trial-handle=5412,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5432 /prefetch:1
                        2⤵
                          PID:1204
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --no-appcompat-clear --field-trial-handle=4944,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5392 /prefetch:8
                          2⤵
                            PID:4072
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --no-appcompat-clear --field-trial-handle=4064,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4068 /prefetch:8
                            2⤵
                              PID:3488
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --no-appcompat-clear --field-trial-handle=3852,i,8265146667594282728,4799182974563289974,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5184 /prefetch:8
                              2⤵
                                PID:3664
                            • C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe
                              "C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe"
                              1⤵
                                PID:1604
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                1⤵
                                  PID:1460
                                • C:\Windows\system32\AUDIODG.EXE
                                  C:\Windows\system32\AUDIODG.EXE 0x3e0 0x478
                                  1⤵
                                    PID:1800

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        BrowsingTopicsState

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                        • Size 649B
                                        • SHA256 f7901e7cfcfa174bf9bdea88fa794d258e25ce4a8861b1bae9ce2281a3053dd3
                                        • MD5 SHA1 SHA512

                                        MANIFEST-000001

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\File System\000\p\Paths\MANIFEST-000001
                                        • Size 41B
                                        • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                                        • MD5 SHA1 SHA512

                                        CURRENT

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\File System\000\t\Paths\CURRENT
                                        • Size 16B
                                        • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                        • MD5 SHA1 SHA512

                                        Network Persistent State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                        • Size 1KB
                                        • SHA256 035b00162cf2d23e1ba5b0e8226da3877b7210ff8936630c54c0740355f87c4e
                                        • MD5 SHA1 SHA512

                                        SCT Auditing Pending Reports

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                        • Size 2B
                                        • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                        • MD5 SHA1 SHA512

                                        TransportSecurity

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                        • Size 521B
                                        • SHA256 9e26fba8fd6b414423097515f4dad8565c8580fefe102bef9c404dd439a6e180
                                        • MD5 SHA1 SHA512

                                        TransportSecurity

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                        • Size 354B
                                        • SHA256 c83452e8470b15e30e825acbdc8e92cbfb8761c287b8e614d549b4c256132fb1
                                        • MD5 SHA1 SHA512

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 3f74eb4e4a9d1242499f0a63a7651667296602c7ec42e1b12c2de9cbfa63ca4b
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 8KB
                                        • SHA256 9fc3f2ebebd5a952031cbf42eba90226ce663775abc9fcde6e655093df153263
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 10664f14084fdf703a0002deaa3859455bcc3ba870dc99ca9f8c7e975112f3c9
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 0f358f7ae29d0bed53506658ae93574e5b8eaaf9388d693b8555094acf31eed5
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 56ccb5c5a35307fb8f204acaf4f032370d56b79e9320d114d7a3994631f610e4
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 1189ec918ced7424454ec998b25c5ac333cb528fb5475f8f757fa60833345520
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 7a8aee30bb40410af1c174d565c1782a4a9e591d8890abe159d169f74f0890fc
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 5cbd7a00e1dc6c1457f54e869601ee746b21083660c8aab362727d8e869e725a
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 3a49ddc682faaef7ac4ce140eff622e2e855bdf3b90bd7a54c97eb0638bff419
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 d236c7f12ca1fdf7d006760725dc904b1b5fd909c032d494320cc7905b45d8eb
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 9KB
                                        • SHA256 a3df6feb1539c7060e7200ada3da1618e2f62524c27fe7e4825dc32a404387aa
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Secure Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                        • Size 15KB
                                        • SHA256 6e846ef4d29927d24077f63bc4045d4a9f1cf08566d6520a6d5c24deae4ee2db
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 185KB
                                        • SHA256 b9182faebf3caf81678170eb2dc32f340e9e8062bfd951bc74e288b169cb0bf0
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Local State

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                        • Size 185KB
                                        • SHA256 ea9b277ad1788526d841a59d3407658fd2a70a76c098e1b1236acdb8a43aef06
                                        • MD5 SHA1 SHA512 SSDEEP

                                        tmpA9DC.tmp

                                        • Path C:\Users\Admin\AppData\Local\Temp\tmpA9DC.tmp
                                        • Size 1KB
                                        • SHA256 77701b041ffaa9b1733bcea92c0d4a954675dd7f6d62a7a7ad555cc2c05c5b35
                                        • MD5 SHA1 SHA512

                                        tmpAA99.tmp

                                        • Path C:\Users\Admin\AppData\Local\Temp\tmpAA99.tmp
                                        • Size 1KB
                                        • SHA256 684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a
                                        • MD5 SHA1 SHA512

                                        memory/1608-65-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-66-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-0-0x0000000074762000-0x0000000074763000-memory.dmp

                                        memory/1608-64-0x0000000074762000-0x0000000074763000-memory.dmp

                                        memory/1608-11-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-4-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-2-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-1-0x0000000074760000-0x0000000074D11000-memory.dmp

                                        memory/1608-67-0x0000000074760000-0x0000000074D11000-memory.dmp