Resubmissions

06-01-2025 19:53

250106-yl61dswlbx 10

04-01-2025 19:59

250104-yqtkvsvldv 10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2025 19:53

General

  • Target

    JaffaCakes118_7b80ad7363ee0a368a08e628ccda91ea.dll

  • Size

    553KB

  • MD5

    7b80ad7363ee0a368a08e628ccda91ea

  • SHA1

    91d13ebd101bf9c0b5f921210090385d926f8c65

  • SHA256

    d8abbbc02496cb5c20ce506cb485e6ab668c652f218f095142d162989caba6a6

  • SHA512

    929c84d8d4dd465607193ddb25037482b0f932773c23026ef92843454c8be9af59becd47accb11ec565f9c59e13b8769c97221e0e5dc812814ea4854ea818701

  • SSDEEP

    3072:oDKpt9sSR0HUHPwZWLnWVfEAzV2INwTBftZmc+z+f3Q0b:oDgtfRQUHPw06MoV2swTBlxm8D

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Yunsip family
  • 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b80ad7363ee0a368a08e628ccda91ea.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b80ad7363ee0a368a08e628ccda91ea.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3240
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • 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:4660
    • 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=0x118,0x11c,0x120,0xf4,0x124,0x7ffb398acc40,0x7ffb398acc4c,0x7ffb398acc58
      2⤵
        PID:4888
      • 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=1900,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1872 /prefetch:2
        2⤵
          PID:632
        • 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=2164,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2176 /prefetch:3
          2⤵
            PID:3032
          • 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=2284,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2300 /prefetch:8
            2⤵
              PID:64
            • 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=3160,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3176 /prefetch:1
              2⤵
                PID:2684
              • 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=3320,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3340 /prefetch:1
                2⤵
                  PID:4428
                • 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=3716,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3712 /prefetch:1
                  2⤵
                    PID:4808
                  • 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=4860,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4892 /prefetch:8
                    2⤵
                      PID:1460
                    • 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=4824,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4832 /prefetch:8
                      2⤵
                        PID:3288
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4816,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4892 /prefetch:8
                        2⤵
                          PID:4552
                        • 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=5336,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5344 /prefetch:8
                          2⤵
                            PID:2300
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4920,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5236 /prefetch:8
                            2⤵
                              PID:3960
                            • 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=5212,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5348 /prefetch:8
                              2⤵
                                PID:3680
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --field-trial-handle=4512,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5344 /prefetch:2
                                2⤵
                                  PID:5544
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=5812,i,15917052790069889155,11010187486402655285,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4488 /prefetch:8
                                  2⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:5200
                              • 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:1072
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                  1⤵
                                    PID:3496

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

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                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\84060f5a-a3dc-4c46-9db2-6760fd27f3de.tmp

                                    Filesize

                                    9KB

                                    MD5

                                    be32184d7e87f88fa597ed11cecede58

                                    SHA1

                                    e402dbede8b4ad592a5af70bf76ac3c0f194f1a8

                                    SHA256

                                    bdc48dff37440dbc0412f476f9ed82294327239c23ad1bc23b7774f11f086137

                                    SHA512

                                    08d61a5278f056888307f2248335e3085dd5e3b26c34e1c0cf749289c29ffded61917a0343b0e35c72eeeadb6851026303c0bf71c38234224c67685461d99db4

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

                                    Filesize

                                    649B

                                    MD5

                                    e3ce9f642700f8092ada51ee98314bf3

                                    SHA1

                                    e9357a22e3344afeacca65f7fa56ee34841c3dd7

                                    SHA256

                                    78dab2b9cebbed0591ff12e834977b400c9a491961d3caf9ebff845fedbba965

                                    SHA512

                                    db25e4e06298015062dcb8215a73cdf734398d0999ed805368e33b2755364238ee57837952081b0e4362c29d61d64458d64e92ee7debeed16d192f6ac0398498

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.85.1_0\_locales\en\messages.json

                                    Filesize

                                    851B

                                    MD5

                                    07ffbe5f24ca348723ff8c6c488abfb8

                                    SHA1

                                    6dc2851e39b2ee38f88cf5c35a90171dbea5b690

                                    SHA256

                                    6895648577286002f1dc9c3366f558484eb7020d52bbf64a296406e61d09599c

                                    SHA512

                                    7ed2c8db851a84f614d5daf1d5fe633bd70301fd7ff8a6723430f05f642ceb3b1ad0a40de65b224661c782ffcec69d996ebe3e5bb6b2f478181e9a07d8cd41f6

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.85.1_0\dasherSettingSchema.json

                                    Filesize

                                    854B

                                    MD5

                                    4ec1df2da46182103d2ffc3b92d20ca5

                                    SHA1

                                    fb9d1ba3710cf31a87165317c6edc110e98994ce

                                    SHA256

                                    6c69ce0fe6fab14f1990a320d704fee362c175c00eb6c9224aa6f41108918ca6

                                    SHA512

                                    939d81e6a82b10ff73a35c931052d8d53d42d915e526665079eeb4820df4d70f1c6aebab70b59519a0014a48514833fefd687d5a3ed1b06482223a168292105d

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

                                    Filesize

                                    1KB

                                    MD5

                                    16bc8a2a66a8201f427bb221e24dd6b2

                                    SHA1

                                    2ad5bd0b5d793e124a970ba8750a67946f180935

                                    SHA256

                                    1274b8a353ddde691238a62d643df4d7a9ae4e01767e494f60ed415b0e3a4c06

                                    SHA512

                                    cf1f0694eb5d71aae9837cab8de7723213edc15990aebfae36bbd7a96b98f3031375e51403565a91249b4e685c1dcd43478f8758ef43ead89956a5f22cfeb62f

                                  • 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

                                    354B

                                    MD5

                                    e88ad6c6799c43cf8cf55191f0849ace

                                    SHA1

                                    4d48e4437c089ff5b6f7ba37e527f4538be1a5e6

                                    SHA256

                                    b4e77f926ad338dae545f97101c5a0bacc72e3168ff760b3ae2a778c6d54dfae

                                    SHA512

                                    14e012d7fe01f8c89803982df4f8475d6a1bf98f410db09e1c689476e3edfdcfebce6da0ca5a585d9e618aa3ac902dd0ecf940cc4d9579cfe3ac04a51a80ae8e

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

                                    Filesize

                                    9KB

                                    MD5

                                    81fb04401faf226722664c353860be8a

                                    SHA1

                                    9e9d90c4fcc3206153aab4c2f53446f80fd38278

                                    SHA256

                                    1fa7090e064e49ff9b129f54a70478fafb6f730bcd89de2c9110400f87de87e4

                                    SHA512

                                    ec071bf1692a54fcef69edde4aa76895b1dc0cecb8ec6677966f92e8e27b90eddbe562f9d716f28b36ea8302542973c961e96e23364f14cf1f6ce3fbf5158a83

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

                                    Filesize

                                    9KB

                                    MD5

                                    336beb9e7f3b3f8e29121f48a6be3528

                                    SHA1

                                    4222d90ec464252ddb5d8db64112029d6f24ae6d

                                    SHA256

                                    a1474d2beb09df59ff07ce3af93708a15b1306ee400b667d7bf5d3a71ccfa005

                                    SHA512

                                    051479258fe62b436610f2f2f6ed622f488125bd45ffd9e8ca5b600262009c9535537134bb337a39788bb98422da14b53bdef60f599b92a0b1940693d77ffebb

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

                                    Filesize

                                    15KB

                                    MD5

                                    04053ae92d7e2748c5539e1c9e92c138

                                    SHA1

                                    d0b05771354cfe8bb2b245e3d8c8657bfdb4d9d8

                                    SHA256

                                    1a4c1fb4671c83b5f4197479f780be315a90964fe23833df60c9d2180607a227

                                    SHA512

                                    113ab99aa04b99e34eda2700b22c7bc56c92698d2d40d1c33f7cdd9f86e9cb2ab42ec61650e38ffdda2c24044245966f1ce89a3cb3c963287e7883815508c349

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index

                                    Filesize

                                    72B

                                    MD5

                                    3d6fa8d5e2584dc4e87128514cd17e07

                                    SHA1

                                    a4b9c56cd573fac453b5e87191c77be7974c99ad

                                    SHA256

                                    3fa04c85cc1f401c39e84a3e305e7cd82d6e7516ee0f4bc1807cd26f200a24a1

                                    SHA512

                                    3f0b9677d3b1af9d37cc93ec175de3075bd9b5fcac2e0e371063dea3f986c59ee15e6526d866e298be4cd94e93833e4f57e30c991ad26371d7e7c11347f1b461

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

                                    Filesize

                                    231KB

                                    MD5

                                    3cba4cc62e558b47929be24027e57ec9

                                    SHA1

                                    f2c8382149e8b697ef1ec5a56a70ecd36d5ce988

                                    SHA256

                                    16ea0e74034d01ce1b12c84a9a67b349a93ff391b3684a27cdf842dc2a65f0ad

                                    SHA512

                                    a98e19dc023e36d8e00d91f7ed483696d8da08658b6bb2d432f8784e0016bc103590e55dfdc3ecde58627c270a1b9568799c009841d37436de126b725046cfda

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

                                    Filesize

                                    231KB

                                    MD5

                                    a67a9a5c3f3e5b8d08eb1bda98b3cfa1

                                    SHA1

                                    91f3e16abf4d5af53f30f3dcf36b529fe667dd17

                                    SHA256

                                    e4fa626dbcc835670191985fce728fa1afe8005ea9d38e3417e2e515b2f64fd0

                                    SHA512

                                    f50fd883bbaeae96dc5854a100aa2f85602930895585570a1ef5eb85d7870aeab9381fb6cb072306e1fd6fe08f878939157bbe2dc0914e0a61a5460cdd27dca4

                                  • C:\Users\Admin\AppData\Local\Temp\scoped_dir4660_882306605\CRX_INSTALL\_locales\en\messages.json

                                    Filesize

                                    711B

                                    MD5

                                    558659936250e03cc14b60ebf648aa09

                                    SHA1

                                    32f1ce0361bbfdff11e2ffd53d3ae88a8b81a825

                                    SHA256

                                    2445cad863be47bb1c15b57a4960b7b0d01864e63cdfde6395f3b2689dc1444b

                                    SHA512

                                    1632f5a3cd71887774bf3cb8a4d8b787ea6278271657b0f1d113dbe1a7fd42c4daa717cc449f157ce8972037572b882dc946a7dc2c0e549d71982dcdee89f727

                                  • C:\Users\Admin\AppData\Local\Temp\scoped_dir4660_882306605\b4f9ccec-ce06-455e-9620-d2d31d9b4cb7.tmp

                                    Filesize

                                    150KB

                                    MD5

                                    14937b985303ecce4196154a24fc369a

                                    SHA1

                                    ecfe89e11a8d08ce0c8745ff5735d5edad683730

                                    SHA256

                                    71006a5311819fef45c659428944897184880bcdb571bf68c52b3d6ee97682ff

                                    SHA512

                                    1d03c75e4d2cd57eee7b0e93e2de293b41f280c415fb2446ac234fc5afd11fe2f2fcc8ab9843db0847c2ce6bd7df7213fcf249ea71896fbf6c0696e3f5aee46c