Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250502-en
  • resource tags

    arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14/05/2025, 01:11

General

  • Target

    2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe

  • Size

    199KB

  • MD5

    78537138f22853e082b0733cfce04842

  • SHA1

    a2b4675bb7828c01157549d9450ae354a08541a7

  • SHA256

    cd0d179927afd03a93b7bb96ed14a7cbe5b18d47fd13039b3b7a0d0f2665dc23

  • SHA512

    973bd76fe580389a85b231646d48ca966328cea31cbe4bee17aa906dd267e9ece59632ce7b0d6e3b7a69f36c561e03432530b4312f6d66e7a91678cb4b1b20ee

  • SSDEEP

    3072:T+fjzka/5RQPy7GWZz/IbIWucgnE9P6gNIjaPmVGY+5xS9YlSy:T+Xka/nTz/zmgniCgNlzoqQy

Malware Config

Extracted

Family

phorphiex

C2

http://185.156.72.39/

http://45.141.233.6/

Wallets

TW3wpRJmZgC5WifuY468JBUCF3TEkzBT5H

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

LdgchXq1sKbAaAJ1EXAPSRBzLb8jnTZstT

MF6iVGLmErYP9y4B9SwtzarDoy3ETSzYrh

4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

0x46e5cc402BC848ceC9f4d65c9B48aE7D7A24821B

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

1B8FF5WwJXNnjkVzxgPkAznVZ8uKb3Watx

ltc1qyfzdpxky7q2grz4zmqv5x0t0uwfuznl5u43c93

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3GcQJkfHq7NWgBhhNKjz7uSfM6LzADpLvX

CSLKveRL2zqkbV2TqiFVuW6twtpqgFajoUZLAJQTTQk2

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

Attributes
  • mutex

    l9n7b5f2r

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Extracted

Family

phorphiex

C2

http://185.156.72.39

185.156.72.39

Signatures

  • Phorphiex family
  • Phorphiex payload 1 IoCs
  • Phorphiex, Phorpiex

    Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

  • Downloads MZ/PE file 2 IoCs
  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 9 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe"
    1⤵
    • Downloads MZ/PE file
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\4A57.exe
      "C:\Users\Admin\AppData\Local\Temp\4A57.exe"
      2⤵
      • Downloads MZ/PE file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Users\Admin\AppData\Local\Temp\3218727625.exe
        C:\Users\Admin\AppData\Local\Temp\3218727625.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:712
        • C:\Windows\syscrondvr.exe
          C:\Windows\syscrondvr.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4876
          • C:\Users\Admin\AppData\Local\Temp\1721821951.exe
            C:\Users\Admin\AppData\Local\Temp\1721821951.exe
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4116
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c sc delete "DrvTcfgsvc" & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1688
              • C:\Windows\system32\sc.exe
                sc delete "DrvTcfgsvc"
                7⤵
                • Launches sc.exe
                PID:3024
              • C:\Windows\system32\reg.exe
                reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f
                7⤵
                  PID:2572
            • C:\Users\Admin\AppData\Local\Temp\2376713009.exe
              C:\Users\Admin\AppData\Local\Temp\2376713009.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:4500
            • C:\Users\Admin\AppData\Local\Temp\109114021.exe
              C:\Users\Admin\AppData\Local\Temp\109114021.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:3540
            • C:\Users\Admin\AppData\Local\Temp\212042377.exe
              C:\Users\Admin\AppData\Local\Temp\212042377.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:276
            • C:\Users\Admin\AppData\Local\Temp\2066818949.exe
              C:\Users\Admin\AppData\Local\Temp\2066818949.exe
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2484
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c sc delete "DrvCfgSvcs" & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:3056
                • C:\Windows\system32\sc.exe
                  sc delete "DrvCfgSvcs"
                  7⤵
                  • Launches sc.exe
                  PID:3464
                • C:\Windows\system32\reg.exe
                  reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f
                  7⤵
                    PID:2876
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2792
        • C:\Windows\syscrondvr.exe
          C:\Windows\syscrondvr.exe
          2⤵
          • Executes dropped EXE
          PID:3916

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\1721821951.exe.log

              Filesize

              425B

              MD5

              de75c43a265d0848584ae05945570edf

              SHA1

              69f95177914f8d8b2f278a91f585a0024b8dffd3

              SHA256

              d9bdf6a2bfdd9b2b5c8593de17ade3d8d317dad331aa6ca0da7483dd06db1140

              SHA512

              365f29c693dd7aa2ade092d765a96f20bf1f7fa93bca7f3b25aeddf5700817b9fd388e8f7d9f1b781c8a876739b06ad16d61e7ed08a1c85ac4be4686a38c63bc

            • C:\Users\Admin\AppData\Local\Temp\109114021.exe

              Filesize

              20KB

              MD5

              680f371f2918acd9c01ebd9b2624e191

              SHA1

              2f6d2bc41d8ec3c2cdddeb894f8af082a51acfa9

              SHA256

              5cf738edd0028523f23a77d7dc02087e6f99cf1110f5b51766bf79f00bff6d09

              SHA512

              df251b794acf1ede346f0b01bca3fe576b0d36d127f33e4942e8093625a40d6b74ec26fc51111ebba705a1e9c37d923069de98d2658b416d1f7410846f873e40

            • C:\Users\Admin\AppData\Local\Temp\1721821951.exe

              Filesize

              8KB

              MD5

              c2252ee01d47f885c466fea46d77b337

              SHA1

              0e5e5e21dfdd47632831935e98d46fb4c4bf9168

              SHA256

              7563681ee1464143363b1b7b6d59cef4c2a3b9a431c94feae043465cc7d23be0

              SHA512

              8e0fdf90fc8c1c014b6c183dafa58ccf18251a3ea2e279c671a35ff702b60a5be3058c2eceac7a00e4b747796b1e1ed10a64abf95f26bd288980592db4e690d7

            • C:\Users\Admin\AppData\Local\Temp\2066818949.exe

              Filesize

              8KB

              MD5

              0cd27d2aa3bc58e4fc3c6639f4797e55

              SHA1

              1224947928cbdb0634d3aa7b374825552fe20fde

              SHA256

              559dfe706ff2f2ce820748d25a91173972c89f6bb9510fba52f40815f018621c

              SHA512

              9a595bfaa5ed85d895337a488969d75a00f33a6dd4e8759b95179428ea44922cccbef6189f08579ff806fe030e9833506c0aa8fedd1108622ffed3d0815d7d62

            • C:\Users\Admin\AppData\Local\Temp\212042377.exe

              Filesize

              51KB

              MD5

              588e67994dd9e1084cbe989ee0d7eecd

              SHA1

              1a9e7f30d4b14b2054c6947ec7b25024dac5c50e

              SHA256

              d6a96251f4bd75df5e68bbc2ce0cea37e0c5fadf1bace5b035245832930a4d2c

              SHA512

              ad9f235b9c03c391d2cd10f1fc0d07d748b305a254dc310da0ad6e1b27160f65a811a1586a632c4f331c5660a2cb77dec8f06b163c6c226f6a2c39b0d13af25e

            • C:\Users\Admin\AppData\Local\Temp\2376713009.exe

              Filesize

              10KB

              MD5

              c08cfa523c9377d3ae24fdb373b3ae13

              SHA1

              5289219770ad28b0fa4f0bdd91817f76bd6be222

              SHA256

              326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0

              SHA512

              c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c

            • C:\Users\Admin\AppData\Local\Temp\3218727625.exe

              Filesize

              80KB

              MD5

              f30fdbf3448f67cbc3566f31729cb7a6

              SHA1

              fbf005c38f4a1c2e86817a2cb70406fc241f2c90

              SHA256

              81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8

              SHA512

              b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

            • C:\Users\Admin\AppData\Local\Temp\4A57.exe

              Filesize

              10KB

              MD5

              0ec46393976eb51f307cc11d80bae845

              SHA1

              69d4cb168f3a1b97c37a0ba1519d0adb1ff7e245

              SHA256

              252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d

              SHA512

              803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f

            • memory/2484-57-0x0000000000430000-0x0000000000436000-memory.dmp

              Filesize

              24KB

            • memory/4116-25-0x0000000000EF0000-0x0000000000EF6000-memory.dmp

              Filesize

              24KB