Resubmissions

07/01/2023, 17:44

230107-wa6t5seb76 10

07/01/2023, 17:33

230107-v498zshe3w 10

Analysis

  • max time kernel
    269s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2023, 17:44

General

  • Target

    674cd4625ef18cbcd8edb1434af6130d735e3ddd1d312bc30806749e5c65f01d.exe

  • Size

    323KB

  • MD5

    d2e3776282eec363c33d68dc27324718

  • SHA1

    630cc3e87e1e29cfee4262ac40abe4db5c11ba14

  • SHA256

    674cd4625ef18cbcd8edb1434af6130d735e3ddd1d312bc30806749e5c65f01d

  • SHA512

    4dc44c2ecdad959e873413ce3a270156e8a48101c0ba1eb48a97c9e2a2bc5d92505a26747fbd44fdd626a1b5565b0b4f1b08627589eb2196f417c872ec2ce2be

  • SSDEEP

    6144:+qoJn7Ly5qOZmhqEI9uwEtfMS/sPoX2mi6WbP:+qoJ7W5qOZP1TEtpEP1mi

Malware Config

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Drops file in Windows directory 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\674cd4625ef18cbcd8edb1434af6130d735e3ddd1d312bc30806749e5c65f01d.exe
    "C:\Users\Admin\AppData\Local\Temp\674cd4625ef18cbcd8edb1434af6130d735e3ddd1d312bc30806749e5c65f01d.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:832
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:268
    • 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:7 --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=89.0.4389.114 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6354f50,0x7fef6354f60,0x7fef6354f70
      2⤵
        PID:856
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1136 /prefetch:2
        2⤵
          PID:644
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1308 /prefetch:8
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1312
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1648 /prefetch:8
          2⤵
            PID:684
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2076 /prefetch:1
            2⤵
              PID:524
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2024 /prefetch:1
              2⤵
                PID:1224
              • 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 --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2816 /prefetch:8
                2⤵
                  PID:884
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --use-gl=swiftshader-webgl --mojo-platform-channel-handle=3304 /prefetch:2
                  2⤵
                    PID:632
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3368 /prefetch:1
                    2⤵
                      PID:1492
                    • 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 --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3372 /prefetch:8
                      2⤵
                        PID:2068
                      • 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 --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3624 /prefetch:8
                        2⤵
                          PID:2076
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3916 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2152
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3904 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2160
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1124,15620252309367274254,4906788193487648174,131072 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1808 /prefetch:1
                          2⤵
                            PID:2280
                        • C:\Windows\explorer.exe
                          "C:\Windows\explorer.exe"
                          1⤵
                            PID:2384
                          • C:\Windows\system32\AUDIODG.EXE
                            C:\Windows\system32\AUDIODG.EXE 0x1f8
                            1⤵
                            • Suspicious use of AdjustPrivilegeToken
                            PID:2520

                          Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                • memory/832-54-0x0000000075831000-0x0000000075833000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/832-55-0x00000000031AB000-0x00000000031C1000-memory.dmp

                                  Filesize

                                  88KB

                                • memory/832-56-0x0000000000220000-0x0000000000229000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/832-57-0x0000000000400000-0x0000000003013000-memory.dmp

                                  Filesize

                                  44.1MB

                                • memory/832-58-0x0000000000400000-0x0000000003013000-memory.dmp

                                  Filesize

                                  44.1MB

                                • memory/2384-61-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

                                  Filesize

                                  8KB