Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 00:54

General

  • Target

    2025-05-14_3c325ce590daca460eddcd52111bcdb3_black-basta_mespinoza_ryuk.exe

  • Size

    354KB

  • MD5

    3c325ce590daca460eddcd52111bcdb3

  • SHA1

    3f1b16c6cd303672562804ac137da5a4a94b3cf3

  • SHA256

    9c03e81f071c3555ab0305859af158db266b42debbc44aa34f19150549ce8665

  • SHA512

    3c1f2b74a92d35251bb66706f4df082dba8773a28e5f5a742574bed98fbcfc3ab6ef88b81f6c65251a74b4fa5efc725622dd1bfd15197f3b44c1c6e95f0ae66c

  • SSDEEP

    6144:P1AtjM+EVs7+W7d2lw4GAcstxxIHohqJpyQy:t+M+FdCGAfUo0aQy

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.

  • Xmrig family
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 7 IoCs
  • Creates new service(s) 2 TTPs
  • Downloads MZ/PE file 3 IoCs
  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 11 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
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 6 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).

  • Program crash 1 IoCs
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-05-14_3c325ce590daca460eddcd52111bcdb3_black-basta_mespinoza_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-05-14_3c325ce590daca460eddcd52111bcdb3_black-basta_mespinoza_ryuk.exe"
    1⤵
    • Downloads MZ/PE file
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Users\Admin\AppData\Local\Temp\58BF.exe
      "C:\Users\Admin\AppData\Local\Temp\58BF.exe"
      2⤵
      • Downloads MZ/PE file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1112
      • C:\Users\Admin\AppData\Local\Temp\313946743.exe
        C:\Users\Admin\AppData\Local\Temp\313946743.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:4888
        • C:\Windows\syscrondvr.exe
          C:\Windows\syscrondvr.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4924
          • C:\Users\Admin\AppData\Local\Temp\245601122.exe
            C:\Users\Admin\AppData\Local\Temp\245601122.exe
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4860
            • 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:1268
              • C:\Windows\system32\sc.exe
                sc delete "DrvTcfgsvc"
                7⤵
                • Launches sc.exe
                PID:2640
              • C:\Windows\system32\reg.exe
                reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f
                7⤵
                  PID:5356
            • C:\Users\Admin\AppData\Local\Temp\909024951.exe
              C:\Users\Admin\AppData\Local\Temp\909024951.exe
              5⤵
              • Downloads MZ/PE file
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:412
              • C:\Users\Admin\AppData\Local\Temp\2630319144.exe
                C:\Users\Admin\AppData\Local\Temp\2630319144.exe
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:5372
                • C:\Windows\system32\sc.exe
                  C:\Windows\system32\sc.exe delete "MgrSrvdrvcs"
                  7⤵
                  • Launches sc.exe
                  PID:3488
                • C:\Windows\system32\sc.exe
                  C:\Windows\system32\sc.exe create "MgrSrvdrvcs" binpath= "C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe" start= "auto"
                  7⤵
                  • Launches sc.exe
                  PID:1136
                • C:\Windows\system32\sc.exe
                  C:\Windows\system32\sc.exe stop eventlog
                  7⤵
                  • Launches sc.exe
                  PID:4208
                • C:\Windows\system32\sc.exe
                  C:\Windows\system32\sc.exe start "MgrSrvdrvcs"
                  7⤵
                  • Launches sc.exe
                  PID:2592
            • C:\Users\Admin\AppData\Local\Temp\2929416162.exe
              C:\Users\Admin\AppData\Local\Temp\2929416162.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:4740
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 73752
                6⤵
                • Program crash
                PID:4684
            • C:\Users\Admin\AppData\Local\Temp\3116014267.exe
              C:\Users\Admin\AppData\Local\Temp\3116014267.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:2088
            • C:\Users\Admin\AppData\Local\Temp\592830483.exe
              C:\Users\Admin\AppData\Local\Temp\592830483.exe
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4856
              • 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:3456
                • C:\Windows\system32\sc.exe
                  sc delete "DrvCfgSvcs"
                  7⤵
                  • Launches sc.exe
                  PID:3640
                • C:\Windows\system32\reg.exe
                  reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f
                  7⤵
                    PID:2392
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Windows\syscrondvr.exe
          C:\Windows\syscrondvr.exe
          2⤵
          • Executes dropped EXE
          PID:2420
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4740 -ip 4740
        1⤵
          PID:4564
        • C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe
          C:\ProgramData\MgrSrvdrvcs\sysmtdrav.exe
          1⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5576
          • C:\Windows\system32\conhost.exe
            C:\Windows\system32\conhost.exe
            2⤵
              PID:3548
            • C:\Windows\system32\dwm.exe
              dwm.exe
              2⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:5820

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\245601122.exe.log

                  Filesize

                  425B

                  MD5

                  de75c43a265d0848584ae05945570edf

                  SHA1

                  69f95177914f8d8b2f278a91f585a0024b8dffd3

                  SHA256

                  d9bdf6a2bfdd9b2b5c8593de17ade3d8d317dad331aa6ca0da7483dd06db1140

                  SHA512

                  365f29c693dd7aa2ade092d765a96f20bf1f7fa93bca7f3b25aeddf5700817b9fd388e8f7d9f1b781c8a876739b06ad16d61e7ed08a1c85ac4be4686a38c63bc

                • C:\Users\Admin\AppData\Local\Temp\245601122.exe

                  Filesize

                  8KB

                  MD5

                  c2252ee01d47f885c466fea46d77b337

                  SHA1

                  0e5e5e21dfdd47632831935e98d46fb4c4bf9168

                  SHA256

                  7563681ee1464143363b1b7b6d59cef4c2a3b9a431c94feae043465cc7d23be0

                  SHA512

                  8e0fdf90fc8c1c014b6c183dafa58ccf18251a3ea2e279c671a35ff702b60a5be3058c2eceac7a00e4b747796b1e1ed10a64abf95f26bd288980592db4e690d7

                • C:\Users\Admin\AppData\Local\Temp\2630319144.exe

                  Filesize

                  2.5MB

                  MD5

                  0000638ebbfe0d620abe6ca32abb1b58

                  SHA1

                  ae908681544765eb238e92b4ff7df26884692aa0

                  SHA256

                  267ec6176c1111d9ffcf32fcfa6aa65917e64d1556dcbbd8989ee6bbebc2e72f

                  SHA512

                  1522ed6c96d0a6699aaf5c1e6e3956742f26e8b46f2c795c0b6cfd3c02421aa6101134ded49c6b97e4085a789056cfb2d0fa09630c1c8796c7fc8d49aef66212

                • C:\Users\Admin\AppData\Local\Temp\2929416162.exe

                  Filesize

                  20KB

                  MD5

                  680f371f2918acd9c01ebd9b2624e191

                  SHA1

                  2f6d2bc41d8ec3c2cdddeb894f8af082a51acfa9

                  SHA256

                  5cf738edd0028523f23a77d7dc02087e6f99cf1110f5b51766bf79f00bff6d09

                  SHA512

                  df251b794acf1ede346f0b01bca3fe576b0d36d127f33e4942e8093625a40d6b74ec26fc51111ebba705a1e9c37d923069de98d2658b416d1f7410846f873e40

                • C:\Users\Admin\AppData\Local\Temp\3116014267.exe

                  Filesize

                  51KB

                  MD5

                  588e67994dd9e1084cbe989ee0d7eecd

                  SHA1

                  1a9e7f30d4b14b2054c6947ec7b25024dac5c50e

                  SHA256

                  d6a96251f4bd75df5e68bbc2ce0cea37e0c5fadf1bace5b035245832930a4d2c

                  SHA512

                  ad9f235b9c03c391d2cd10f1fc0d07d748b305a254dc310da0ad6e1b27160f65a811a1586a632c4f331c5660a2cb77dec8f06b163c6c226f6a2c39b0d13af25e

                • C:\Users\Admin\AppData\Local\Temp\313946743.exe

                  Filesize

                  80KB

                  MD5

                  f30fdbf3448f67cbc3566f31729cb7a6

                  SHA1

                  fbf005c38f4a1c2e86817a2cb70406fc241f2c90

                  SHA256

                  81783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8

                  SHA512

                  b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8

                • C:\Users\Admin\AppData\Local\Temp\58BF.exe

                  Filesize

                  10KB

                  MD5

                  0ec46393976eb51f307cc11d80bae845

                  SHA1

                  69d4cb168f3a1b97c37a0ba1519d0adb1ff7e245

                  SHA256

                  252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d

                  SHA512

                  803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f

                • C:\Users\Admin\AppData\Local\Temp\592830483.exe

                  Filesize

                  8KB

                  MD5

                  0cd27d2aa3bc58e4fc3c6639f4797e55

                  SHA1

                  1224947928cbdb0634d3aa7b374825552fe20fde

                  SHA256

                  559dfe706ff2f2ce820748d25a91173972c89f6bb9510fba52f40815f018621c

                  SHA512

                  9a595bfaa5ed85d895337a488969d75a00f33a6dd4e8759b95179428ea44922cccbef6189f08579ff806fe030e9833506c0aa8fedd1108622ffed3d0815d7d62

                • C:\Users\Admin\AppData\Local\Temp\909024951.exe

                  Filesize

                  10KB

                  MD5

                  c08cfa523c9377d3ae24fdb373b3ae13

                  SHA1

                  5289219770ad28b0fa4f0bdd91817f76bd6be222

                  SHA256

                  326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0

                  SHA512

                  c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c

                • memory/3548-76-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/3548-68-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/3548-71-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/3548-67-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/3548-69-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/3548-70-0x0000000140000000-0x000000014000D000-memory.dmp

                  Filesize

                  52KB

                • memory/4856-57-0x0000000000220000-0x0000000000226000-memory.dmp

                  Filesize

                  24KB

                • memory/4860-25-0x0000000000760000-0x0000000000766000-memory.dmp

                  Filesize

                  24KB

                • memory/5820-82-0x0000014C3EDB0000-0x0000014C3EDD0000-memory.dmp

                  Filesize

                  128KB

                • memory/5820-87-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-85-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-84-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-80-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-78-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-77-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-86-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-74-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-75-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-83-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-81-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB

                • memory/5820-79-0x0000000140000000-0x0000000140835000-memory.dmp

                  Filesize

                  8.2MB