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Analysis

  • max time kernel
    20s
  • max time network
    20s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2024, 22:25

General

  • Target

    2.3.3.exe

  • Size

    1.7MB

  • MD5

    6eb122e96a700bd2b8cc99145e341dca

  • SHA1

    cb7b638457cc0c9d91f2d160cff668be728e98e7

  • SHA256

    7fdd01a97937e772442349582da60906c7af11674de1d2e7b5d8ef735d541310

  • SHA512

    a58e58533c58adc4e247d7a8e9f96034e04083b58d24b4f31ce191722978a2544d620e44d54ede8956698267dda2466303085d2f4b013859d928e915551d73e4

  • SSDEEP

    24576:m9ohkx17Y1hjhLYgHZ/3n9xNGEDx6sjoduqJaa+WB0cmukAoArSnw4GTNL2aa3/K:2skxe1/vNG2jSuryBJoeSnw4uO

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

ahk

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

ZCYbbgUqVRxZ

Attributes
  • delay

    3

  • install

    false

  • install_file

    powerhouse.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Async RAT payload 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2.3.3.exe
    "C:\Users\Admin\AppData\Local\Temp\2.3.3.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4204
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefault4ff26ffchb375h487dh9253hdc410e9d909c
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x120,0x124,0x128,0xfc,0x12c,0x7ffcecce46f8,0x7ffcecce4708,0x7ffcecce4718
      2⤵
        PID:1500
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2032 /prefetch:2
        2⤵
          PID:2020
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2368 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4376
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2028,9426571314349263463,1066343709785181275,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2912 /prefetch:8
          2⤵
            PID:2104
        • C:\Windows\System32\CompPkgSrv.exe
          C:\Windows\System32\CompPkgSrv.exe -Embedding
          1⤵
            PID:732
          • C:\Windows\System32\CompPkgSrv.exe
            C:\Windows\System32\CompPkgSrv.exe -Embedding
            1⤵
              PID:3236

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

              Filesize

              152B

              MD5

              f426165d1e5f7df1b7a3758c306cd4ae

              SHA1

              59ef728fbbb5c4197600f61daec48556fec651c1

              SHA256

              b68dfc21866d0abe5c75d70acc54670421fa9b26baf98af852768676a901b841

              SHA512

              8d437fcb85acb0705bf080141e7a021740901248985a76299ea8c43e46ad78fb88c738322cf302f6a550caa5e79d85b36827e9b329b1094521b17cf638c015b6

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

              Filesize

              5KB

              MD5

              dbb05b40602c65710f74220a10b01533

              SHA1

              16ecc8ec546b34d04acb91048ea40d534c670e25

              SHA256

              7370b172d6318aec6c8635911b7c0b295e6992a7e83e048746dc35f3f3dab9d0

              SHA512

              426575f996bb0ef8742eac952e8507886046a53710090f71368cda0e1a32a875ddf54ef91df6d6fde8309395ea95a696ee2c48ece365e7779569eab6d547933d

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

              Filesize

              8KB

              MD5

              d0b2f98466bed461736265fb13746bd6

              SHA1

              996c5df06a6ba70e78efbbc555beefdba8ffd61f

              SHA256

              30d316115b66c808b7ccc792169b851b5d625eeefa3e8ade2a9e84df23963c4a

              SHA512

              15ebd214eaeeed40ee71b9d57fcfb77a134d12335a4266aaa85026743a687a907c7f6265651c1c9b506abba19fb6cfa655bc8bcd753aa804f5792c448bacbfd3

            • memory/4204-0-0x00000000007C0000-0x0000000000C0C000-memory.dmp

              Filesize

              4.3MB

            • memory/4204-1-0x00000000007C0000-0x0000000000C0C000-memory.dmp

              Filesize

              4.3MB

            • memory/4204-2-0x00000000007C0000-0x0000000000C0C000-memory.dmp

              Filesize

              4.3MB

            • memory/4204-3-0x0000000007840000-0x00000000078A6000-memory.dmp

              Filesize

              408KB

            • memory/4204-4-0x0000000007CE0000-0x0000000007D7C000-memory.dmp

              Filesize

              624KB

            • memory/4204-6-0x00000000007C0000-0x0000000000C0C000-memory.dmp

              Filesize

              4.3MB