Analysis

  • max time kernel
    61s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 20:25

General

  • Target

    c5ca3b412412cb576b80cd5ceabbf8997a1e8b7ad110545c4a0fbaece8acb4a2.exe

  • Size

    3.4MB

  • MD5

    a75a69c8e7d43c798214ecfe57397224

  • SHA1

    5eea407838965192b0785ae08e7c7b4dbf900e33

  • SHA256

    c5ca3b412412cb576b80cd5ceabbf8997a1e8b7ad110545c4a0fbaece8acb4a2

  • SHA512

    13cfcacf1c0fe8cb80a775394720fc1f77c14e36d187356ff9d60a37bd1cf0ff14f2a85780437981db5b1411218a1dbd85f93f4b1053d9196679a7d149949d5a

  • SSDEEP

    49152:WelMheDwmXQVKk2rBkyD3RZDaCAxQs8VlIiWSk8hM0wGUsfisgEWmBMbLCDrYGE5:7L8ArGoaCls8VlIkkgMlGUkMqoX

Malware Config

Signatures

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 4 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5ca3b412412cb576b80cd5ceabbf8997a1e8b7ad110545c4a0fbaece8acb4a2.exe
    "C:\Users\Admin\AppData\Local\Temp\c5ca3b412412cb576b80cd5ceabbf8997a1e8b7ad110545c4a0fbaece8acb4a2.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2012
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2316
      • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffa081a46f8,0x7ffa081a4708,0x7ffa081a4718
        3⤵
          PID:4584
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" http://127.0.0.1:12856
        2⤵
        • Enumerates system info in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2836
        • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffa081a46f8,0x7ffa081a4708,0x7ffa081a4718
          3⤵
            PID:2428
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2136,7806100086743597737,16394439958241846502,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2176 /prefetch:2
            3⤵
              PID:32
            • 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=2136,7806100086743597737,16394439958241846502,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2352 /prefetch:3
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:2544
            • 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=2136,7806100086743597737,16394439958241846502,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2760 /prefetch:8
              3⤵
                PID:4624
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,7806100086743597737,16394439958241846502,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3424 /prefetch:1
                3⤵
                  PID:1964
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2136,7806100086743597737,16394439958241846502,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3436 /prefetch:1
                  3⤵
                    PID:4976
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2136,7806100086743597737,16394439958241846502,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4936 /prefetch:8
                    3⤵
                      PID:4676
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 2544
                    2⤵
                    • Program crash
                    PID:64
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:1844
                  • C:\Windows\system32\msiexec.exe
                    C:\Windows\system32\msiexec.exe /V
                    1⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3768
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2012 -ip 2012
                    1⤵
                      PID:608

                    Network

                    MITRE ATT&CK Matrix ATT&CK v6

                    Defense Evasion

                    Virtualization/Sandbox Evasion

                    1
                    T1497

                    Discovery

                    Query Registry

                    4
                    T1012

                    Virtualization/Sandbox Evasion

                    1
                    T1497

                    System Information Discovery

                    5
                    T1082

                    Collection

                    Email Collection

                    1
                    T1114

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

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

                      152B

                      MD5

                      1dde831b3f72227121241cfbcf0b8bfa

                      SHA1

                      e076ca61127cce19e3495b3a0ae3dfdb8592effd

                      SHA256

                      b3f388e535f4220252e0b0b4fc8146c51489ecbeca74227f8cdff78ed0062cc6

                      SHA512

                      2ec5a389bb710a725b75ba3e27f3fbcb0d5d6bd2ff0803d1f2381d1a79c7162581c6818afaa7e10aa03900482e2a1f683ca8cb7ed2f68489efa093715740f03b

                    • \??\pipe\LOCAL\crashpad_2836_QGIYHGUVMJKEHYAS
                      MD5

                      d41d8cd98f00b204e9800998ecf8427e

                      SHA1

                      da39a3ee5e6b4b0d3255bfef95601890afd80709

                      SHA256

                      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                      SHA512

                      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                    • memory/32-148-0x0000000000000000-mapping.dmp
                    • memory/1964-154-0x0000000000000000-mapping.dmp
                    • memory/2012-139-0x0000000005F80000-0x000000000601C000-memory.dmp
                      Filesize

                      624KB

                    • memory/2012-135-0x0000000077D50000-0x0000000077EF3000-memory.dmp
                      Filesize

                      1.6MB

                    • memory/2012-140-0x0000000006810000-0x0000000006DB4000-memory.dmp
                      Filesize

                      5.6MB

                    • memory/2012-141-0x00000000064B0000-0x0000000006542000-memory.dmp
                      Filesize

                      584KB

                    • memory/2012-161-0x0000000077D50000-0x0000000077EF3000-memory.dmp
                      Filesize

                      1.6MB

                    • memory/2012-160-0x0000000000B50000-0x00000000013D6000-memory.dmp
                      Filesize

                      8.5MB

                    • memory/2012-159-0x0000000077D50000-0x0000000077EF3000-memory.dmp
                      Filesize

                      1.6MB

                    • memory/2012-158-0x0000000000B50000-0x00000000013D6000-memory.dmp
                      Filesize

                      8.5MB

                    • memory/2012-138-0x0000000005AF0000-0x0000000005B56000-memory.dmp
                      Filesize

                      408KB

                    • memory/2012-137-0x0000000000B50000-0x00000000013D6000-memory.dmp
                      Filesize

                      8.5MB

                    • memory/2012-134-0x0000000000B50000-0x00000000013D6000-memory.dmp
                      Filesize

                      8.5MB

                    • memory/2012-136-0x0000000000B50000-0x00000000013D6000-memory.dmp
                      Filesize

                      8.5MB

                    • memory/2316-142-0x0000000000000000-mapping.dmp
                    • memory/2428-145-0x0000000000000000-mapping.dmp
                    • memory/2544-149-0x0000000000000000-mapping.dmp
                    • memory/2836-144-0x0000000000000000-mapping.dmp
                    • memory/4584-143-0x0000000000000000-mapping.dmp
                    • memory/4624-152-0x0000000000000000-mapping.dmp
                    • memory/4976-156-0x0000000000000000-mapping.dmp