Analysis

  • max time kernel
    35s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02/01/2023, 14:19

General

  • Target
    4c5e108e41465eeb47587613f5dec1d0.exe
  • Size 5.6MB
  • Sample230102-rmtywsef35
  • SHA256 f7f2fc80daff553378963bbbc6d3df712f3a01428af4666dda5e7612300f5b37
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 43 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c5e108e41465eeb47587613f5dec1d0.exe
    "C:\Users\Admin\AppData\Local\Temp\4c5e108e41465eeb47587613f5dec1d0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1780
    • C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
      "C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1252
    • C:\Windows\syswow64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Suspicious use of SetThreadContext
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1036
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 22361
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:1620
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 22361
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:1684
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --no-first-run --no-default-browser-check --silent-launch --disable-backgrounding-occluded-windows --disable-background-timer-throttling --ran-launcher --profile-directory="Default"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2044
    • 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,0x7fef66b4f50,0x7fef66b4f60,0x7fef66b4f70
      2⤵
        PID:1804
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1120,3617475454855975467,12872005062051333193,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1128 /prefetch:2
        2⤵
          PID:1852
        • 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=1120,3617475454855975467,12872005062051333193,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1412 /prefetch:8
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1416
        • 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=1120,3617475454855975467,12872005062051333193,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1840 /prefetch:8
          2⤵
            PID:1604

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              Proueehaoipr.exe

              • Path C:\Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
              • Size 1.4MB
              • SHA256 11333749aa43d97da7da9a9f9589a50d8ec497aa931ed3c0cb6876f302be22e6
              • MD5 SHA1 SHA512 SSDEEP

              Proueehaoipr.exe

              • Path \Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
              • Size 1.4MB
              • SHA256 11333749aa43d97da7da9a9f9589a50d8ec497aa931ed3c0cb6876f302be22e6
              • MD5 SHA1 SHA512 SSDEEP

              Proueehaoipr.exe

              • Path \Users\Admin\AppData\Local\Temp\Proueehaoipr.exe
              • Size 1.4MB
              • SHA256 11333749aa43d97da7da9a9f9589a50d8ec497aa931ed3c0cb6876f302be22e6
              • MD5 SHA1 SHA512 SSDEEP

              memory/1036-92-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-91-0x0000000002940000-0x0000000003497000-memory.dmp

              memory/1036-114-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-113-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-112-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-109-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-120-0x0000000002940000-0x0000000003497000-memory.dmp

              memory/1036-97-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-96-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-95-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-86-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-84-0x0000000002940000-0x0000000003497000-memory.dmp

              memory/1036-80-0x0000000002940000-0x0000000003497000-memory.dmp

              memory/1036-90-0x0000000000B00000-0x0000000001537000-memory.dmp

              memory/1036-89-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-88-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-87-0x00000000034A0000-0x00000000035E0000-memory.dmp

              memory/1036-76-0x0000000000B00000-0x0000000001537000-memory.dmp

              memory/1252-70-0x0000000001DD0000-0x0000000001F02000-memory.dmp

              memory/1252-82-0x0000000001DD0000-0x0000000001F02000-memory.dmp

              memory/1252-85-0x0000000000400000-0x000000000057B000-memory.dmp

              memory/1252-83-0x0000000001F40000-0x0000000002073000-memory.dmp

              memory/1620-100-0x0000000001E60000-0x0000000001FA0000-memory.dmp

              memory/1620-99-0x0000000001E60000-0x0000000001FA0000-memory.dmp

              memory/1620-105-0x0000000002080000-0x0000000002323000-memory.dmp

              memory/1620-93-0x0000000000220000-0x00000000004B1000-memory.dmp

              memory/1620-104-0x0000000002080000-0x0000000002323000-memory.dmp

              memory/1620-103-0x0000000000220000-0x00000000004B1000-memory.dmp

              memory/1620-101-0x000007FEFB7C1000-0x000007FEFB7C3000-memory.dmp

              memory/1684-119-0x0000000001E60000-0x0000000002103000-memory.dmp

              memory/1684-116-0x00000000021E0000-0x0000000002320000-memory.dmp

              memory/1684-117-0x00000000021E0000-0x0000000002320000-memory.dmp

              memory/1780-65-0x0000000006A30000-0x0000000007587000-memory.dmp

              memory/1780-108-0x0000000000400000-0x00000000009C0000-memory.dmp

              memory/1780-66-0x0000000006A30000-0x0000000007587000-memory.dmp

              memory/1780-75-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-67-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-68-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-69-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-106-0x0000000000400000-0x00000000009C0000-memory.dmp

              memory/1780-107-0x0000000006A30000-0x0000000007587000-memory.dmp

              memory/1780-54-0x0000000002200000-0x000000000276D000-memory.dmp

              memory/1780-64-0x0000000000400000-0x00000000009C0000-memory.dmp

              memory/1780-63-0x0000000002770000-0x0000000002D2E000-memory.dmp

              memory/1780-60-0x0000000006A30000-0x0000000007587000-memory.dmp

              memory/1780-61-0x0000000002200000-0x000000000276D000-memory.dmp

              memory/1780-71-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-72-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-73-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-74-0x0000000007830000-0x0000000007970000-memory.dmp

              memory/1780-55-0x0000000075991000-0x0000000075993000-memory.dmp