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Resubmissions

04/03/2025, 15:32

250304-syy8estrw6 10

31/01/2025, 12:59

250131-p8d4fswmbx 10

27/01/2025, 15:12

250127-slapastrfy 10

24/01/2025, 15:20

250124-sqxpmawncj 10

22/01/2025, 17:56

250122-wjahasypaj 10

21/01/2025, 17:40

250121-v8zcaawjcj 10

21/01/2025, 15:38

250121-s26fxa1ndk 10

21/01/2025, 14:09

250121-rglekaxlcw 10

Analysis

  • max time kernel
    59s
  • max time network
    52s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27/01/2025, 15:12

General

  • Target

    2025-01-21_07244d8bbd0721454ea97e696b6e85d3_wannacry.exe

  • Size

    352KB

  • MD5

    07244d8bbd0721454ea97e696b6e85d3

  • SHA1

    06bc9b13360ac74b019cab18c96cc888474afc52

  • SHA256

    6d4fdb81ba3d3005f83e87f1b28fd48fbfe213a6dd164b95d939b9391faff82e

  • SHA512

    73c5fa9ee0bf8f91daa41f15932b0138329990d192bda0b75b90bd2f70fc8aaab28f509c9562355942a0563c418c96f99c0322e149e8c9b6d8ff83f14e3a8061

  • SSDEEP

    6144:gV3r9iXlkEt9RGv5IKp/ntL2FJGAJRaWJ1rQPNDEDKx22LV:gglkEHshIKpvtg4AJRaWkp

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Chaos family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-21_07244d8bbd0721454ea97e696b6e85d3_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-21_07244d8bbd0721454ea97e696b6e85d3_wannacry.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2620
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:412
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4564
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:980
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:5100
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2192
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1852
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:3536
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4940
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3740
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1436
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2060
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Drops file in Windows directory
      • 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:1764
      • 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" "--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=123.0.6312.123 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffd88cfcc40,0x7ffd88cfcc4c,0x7ffd88cfcc58
        2⤵
          PID:3568
        • 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=1832,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1828 /prefetch:2
          2⤵
            PID:1400
          • 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=2056,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2116 /prefetch:3
            2⤵
              PID:3164
            • 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=2196,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2212 /prefetch:8
              2⤵
                PID:3892
              • 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=3104,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3256 /prefetch:1
                2⤵
                  PID:2884
                • 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=3156,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3296 /prefetch:1
                  2⤵
                    PID:2924
                  • 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=4436,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4020 /prefetch:1
                    2⤵
                      PID:236
                    • 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=4892,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4600 /prefetch:8
                      2⤵
                        PID:4420
                      • 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=4860,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4600 /prefetch:8
                        2⤵
                          PID:1836
                        • 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=10 --field-trial-handle=5004,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4296 /prefetch:1
                          2⤵
                            PID:2068
                          • 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=4308,i,14855156258431992844,13043515091275959107,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3400 /prefetch:1
                            2⤵
                              PID:2332
                          • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                            1⤵
                              PID:3388
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                              1⤵
                                PID:1576

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState

                                Filesize

                                649B

                                MD5

                                feffd5a8df88171abe4549c6b50c589a

                                SHA1

                                7ee716032c97d6844b5fd91cbbbf635798d0eb34

                                SHA256

                                a5b6478f600d66cbce80da6cd050d9493e7c98eba0cae926876760021283bc98

                                SHA512

                                9ce8c388997823ba7b388e20ca596a721476c7c4f6acc1dc2aa542d05764fde3868b3ba1701187b8d054cee2e34dc978496c1b2f92d5275eadd2de285836f7f0

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00001a

                                Filesize

                                215KB

                                MD5

                                3589d6be186a459827a850486cad3846

                                SHA1

                                c9f9d8bce4f666db9be63cba12a5f286a0fb41d9

                                SHA256

                                89f7aa5b3e458b35d74487fcb84a904187d332cca2f2aa574cdec77370fe487c

                                SHA512

                                8da2d5d3e569f89db770f151e656b471664577bf36cffff8b6830e9f39cc1b657e02b02307d10a86ea4553ac326eb01585dc5f0021863899f987bc03af906dc4

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                                Filesize

                                2B

                                MD5

                                d751713988987e9331980363e24189ce

                                SHA1

                                97d170e1550eee4afc0af065b78cda302a97674c

                                SHA256

                                4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                                SHA512

                                b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                Filesize

                                1KB

                                MD5

                                67147e4d09503caae1a3c92c32ef5b09

                                SHA1

                                5e945c8f99139abacc02ff8e0817dba7b96cb6a5

                                SHA256

                                8280746160341587924434a5eb65cbc19055cf249f84a7bb16ff9748829fea0e

                                SHA512

                                4900cbcf8708f6f607b7f07dee6004a55176a6e0c057a56779ecbd5da84da314bf908bd93787c0afb3a47f47afd24ac623522017109e5fbdaba598254dc821d3

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                Filesize

                                9KB

                                MD5

                                17e071695989aac996cec8cf6440675a

                                SHA1

                                a55b8f250bf68e188fb4593c026b32dd0ed1e279

                                SHA256

                                e1808ec6c4f31aeb28a2f579d35715a9b8069916fd51d0581f64258160e6c688

                                SHA512

                                c20271cdee773e60eeebcd1ea553a791bb86966cc19f520dc97502fe45f20cf8f1b5b3ef7545d3636f89e50fc1b788268355fb1fb8e66ec3f0fc4a0f1b947d94

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

                                Filesize

                                15KB

                                MD5

                                e71a39a106ddb46dfc593258b677438e

                                SHA1

                                04e4a17a411305696cc802e7dabb3ec1bddf153d

                                SHA256

                                d81ba2502440cf32c0cc8e51e1dd7e2b93bf07216de3b8cb7d38ab39ff6e31be

                                SHA512

                                7262ec2806bc5407ac1e0cc8df98c8738e32306eccdfd68d41dcfba464f69762d64c085a40ebdc368602cbec63ddfaf7926cfac1735e53cf1dc16bf04df5e0fd

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                                Filesize

                                233KB

                                MD5

                                bc9cecd0c1397dc7950d71b3b1efe820

                                SHA1

                                e7001cfcc1a5a93a24d7304f9b740d2cd94f5089

                                SHA256

                                3fd122ca6d2eb6226cfefb8adcd5d83438f130499dadb2d1b405c4743aefb0f4

                                SHA512

                                2e7f25f436a4af0d1beb079a970196fe23b9a787d2dbee18a4e791955154ff3c275698ef76d2029f35b3d3eb65c770ec760a59d2356a25445f0d817c7e49db33

                              • C:\Users\Admin\AppData\Roaming\svchost.exe

                                Filesize

                                352KB

                                MD5

                                07244d8bbd0721454ea97e696b6e85d3

                                SHA1

                                06bc9b13360ac74b019cab18c96cc888474afc52

                                SHA256

                                6d4fdb81ba3d3005f83e87f1b28fd48fbfe213a6dd164b95d939b9391faff82e

                                SHA512

                                73c5fa9ee0bf8f91daa41f15932b0138329990d192bda0b75b90bd2f70fc8aaab28f509c9562355942a0563c418c96f99c0322e149e8c9b6d8ff83f14e3a8061

                              • C:\Users\Admin\Desktop\read_it.txt

                                Filesize

                                120B

                                MD5

                                8a4a98a8bfe11567dd16d06ddc364346

                                SHA1

                                ed94fda66affe31abe3002f8e702c3ddd5e37ba8

                                SHA256

                                48236cc3c7a1316f9f61201f2937c9653b9e6c8f6b038f9a94fbe7a3a3153cd3

                                SHA512

                                662ae12eee1180e34a41a4e2b018cae970fabeb446a9d8e82c692ca32d52ebadccc8a465b7dce4988af9f37d42dcfaec7b028e6a3c107b9b6cdc81e345770141

                              • memory/2980-69-0x00007FFD8E080000-0x00007FFD8EB42000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/2980-14-0x00007FFD8E080000-0x00007FFD8EB42000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/4328-0-0x00007FFD8E083000-0x00007FFD8E085000-memory.dmp

                                Filesize

                                8KB

                              • memory/4328-1-0x0000000000C90000-0x0000000000CBC000-memory.dmp

                                Filesize

                                176KB