Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
14/05/2025, 01:11
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe
Resource
win11-20250502-en
General
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Target
2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe
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Size
199KB
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MD5
78537138f22853e082b0733cfce04842
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SHA1
a2b4675bb7828c01157549d9450ae354a08541a7
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SHA256
cd0d179927afd03a93b7bb96ed14a7cbe5b18d47fd13039b3b7a0d0f2665dc23
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SHA512
973bd76fe580389a85b231646d48ca966328cea31cbe4bee17aa906dd267e9ece59632ce7b0d6e3b7a69f36c561e03432530b4312f6d66e7a91678cb4b1b20ee
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SSDEEP
3072:T+fjzka/5RQPy7GWZz/IbIWucgnE9P6gNIjaPmVGY+5xS9YlSy:T+Xka/nTz/zmgniCgNlzoqQy
Malware Config
Extracted
phorphiex
http://185.156.72.39/
http://45.141.233.6/
TW3wpRJmZgC5WifuY468JBUCF3TEkzBT5H
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LdgchXq1sKbAaAJ1EXAPSRBzLb8jnTZstT
MF6iVGLmErYP9y4B9SwtzarDoy3ETSzYrh
4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
0x46e5cc402BC848ceC9f4d65c9B48aE7D7A24821B
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1B8FF5WwJXNnjkVzxgPkAznVZ8uKb3Watx
ltc1qyfzdpxky7q2grz4zmqv5x0t0uwfuznl5u43c93
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3GcQJkfHq7NWgBhhNKjz7uSfM6LzADpLvX
CSLKveRL2zqkbV2TqiFVuW6twtpqgFajoUZLAJQTTQk2
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1q9tgkga69k094n5v0pn7ewmpp2kn66sh9hu65gq
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
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mutex
l9n7b5f2r
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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
phorphiex
http://185.156.72.39
185.156.72.39
Signatures
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Phorphiex family
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Phorphiex payload 1 IoCs
resource yara_rule behavioral1/files/0x00080000000240f0-10.dat family_phorphiex -
Downloads MZ/PE file 2 IoCs
flow pid Process 36 4852 96A2.exe 3 1668 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe -
Stops running service(s) 4 TTPs
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3623617754-4043701611-775564599-1000\Control Panel\International\Geo\Nation 1087220806.exe Key value queried \REGISTRY\USER\S-1-5-21-3623617754-4043701611-775564599-1000\Control Panel\International\Geo\Nation 1428019237.exe -
Executes dropped EXE 9 IoCs
pid Process 4852 96A2.exe 436 2287025921.exe 992 syscrondvr.exe 4760 syscrondvr.exe 3416 1087220806.exe 436 1457712122.exe 2372 182823437.exe 1876 312522153.exe 976 1428019237.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\syscrondvr.exe" 2287025921.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\syscrondvr.exe 2287025921.exe File opened for modification C:\Windows\syscrondvr.exe 2287025921.exe -
Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 232 sc.exe 4876 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 96A2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2287025921.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language syscrondvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1457712122.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 182823437.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 312522153.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3416 1087220806.exe 976 1428019237.exe 976 1428019237.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3416 1087220806.exe Token: SeDebugPrivilege 976 1428019237.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 1668 wrote to memory of 4852 1668 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 88 PID 1668 wrote to memory of 4852 1668 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 88 PID 1668 wrote to memory of 4852 1668 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 88 PID 4852 wrote to memory of 436 4852 96A2.exe 102 PID 4852 wrote to memory of 436 4852 96A2.exe 102 PID 4852 wrote to memory of 436 4852 96A2.exe 102 PID 436 wrote to memory of 992 436 2287025921.exe 104 PID 436 wrote to memory of 992 436 2287025921.exe 104 PID 436 wrote to memory of 992 436 2287025921.exe 104 PID 3436 wrote to memory of 4760 3436 cmd.exe 106 PID 3436 wrote to memory of 4760 3436 cmd.exe 106 PID 3436 wrote to memory of 4760 3436 cmd.exe 106 PID 992 wrote to memory of 3416 992 syscrondvr.exe 108 PID 992 wrote to memory of 3416 992 syscrondvr.exe 108 PID 3416 wrote to memory of 1820 3416 1087220806.exe 109 PID 3416 wrote to memory of 1820 3416 1087220806.exe 109 PID 1820 wrote to memory of 232 1820 cmd.exe 111 PID 1820 wrote to memory of 232 1820 cmd.exe 111 PID 1820 wrote to memory of 1852 1820 cmd.exe 112 PID 1820 wrote to memory of 1852 1820 cmd.exe 112 PID 992 wrote to memory of 436 992 syscrondvr.exe 120 PID 992 wrote to memory of 436 992 syscrondvr.exe 120 PID 992 wrote to memory of 436 992 syscrondvr.exe 120 PID 992 wrote to memory of 2372 992 syscrondvr.exe 121 PID 992 wrote to memory of 2372 992 syscrondvr.exe 121 PID 992 wrote to memory of 2372 992 syscrondvr.exe 121 PID 992 wrote to memory of 1876 992 syscrondvr.exe 122 PID 992 wrote to memory of 1876 992 syscrondvr.exe 122 PID 992 wrote to memory of 1876 992 syscrondvr.exe 122 PID 992 wrote to memory of 976 992 syscrondvr.exe 123 PID 992 wrote to memory of 976 992 syscrondvr.exe 123 PID 976 wrote to memory of 1768 976 1428019237.exe 124 PID 976 wrote to memory of 1768 976 1428019237.exe 124 PID 1768 wrote to memory of 4876 1768 cmd.exe 126 PID 1768 wrote to memory of 4876 1768 cmd.exe 126 PID 1768 wrote to memory of 1348 1768 cmd.exe 127 PID 1768 wrote to memory of 1348 1768 cmd.exe 127
Processes
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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:1668 -
C:\Users\Admin\AppData\Local\Temp\96A2.exe"C:\Users\Admin\AppData\Local\Temp\96A2.exe"2⤵
- Downloads MZ/PE file
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852 -
C:\Users\Admin\AppData\Local\Temp\2287025921.exeC:\Users\Admin\AppData\Local\Temp\2287025921.exe3⤵
- 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:436 -
C:\Windows\syscrondvr.exeC:\Windows\syscrondvr.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:992 -
C:\Users\Admin\AppData\Local\Temp\1087220806.exeC:\Users\Admin\AppData\Local\Temp\1087220806.exe5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3416 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c sc delete "DrvTcfgsvc" & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f6⤵
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Windows\system32\sc.exesc delete "DrvTcfgsvc"7⤵
- Launches sc.exe
PID:232
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C:\Windows\system32\reg.exereg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f7⤵PID:1852
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C:\Users\Admin\AppData\Local\Temp\1457712122.exeC:\Users\Admin\AppData\Local\Temp\1457712122.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:436
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C:\Users\Admin\AppData\Local\Temp\182823437.exeC:\Users\Admin\AppData\Local\Temp\182823437.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2372
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C:\Users\Admin\AppData\Local\Temp\312522153.exeC:\Users\Admin\AppData\Local\Temp\312522153.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1876
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C:\Users\Admin\AppData\Local\Temp\1428019237.exeC:\Users\Admin\AppData\Local\Temp\1428019237.exe5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c sc delete "DrvCfgSvcs" & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f6⤵
- Suspicious use of WriteProcessMemory
PID:1768 -
C:\Windows\system32\sc.exesc delete "DrvCfgSvcs"7⤵
- Launches sc.exe
PID:4876
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C:\Windows\system32\reg.exereg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f7⤵PID:1348
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe1⤵
- Suspicious use of WriteProcessMemory
PID:3436 -
C:\Windows\syscrondvr.exeC:\Windows\syscrondvr.exe2⤵
- Executes dropped EXE
PID:4760
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
425B
MD5fff5cbccb6b31b40f834b8f4778a779a
SHA1899ed0377e89f1ed434cfeecc5bc0163ebdf0454
SHA256b8f7e4ed81764db56b9c09050f68c5a26af78d8a5e2443e75e0e1aa7cd2ccd76
SHA5121a188a14c667bc31d2651b220aa762be9cce4a75713217846fbe472a307c7bbc6e3c27617f75f489902a534d9184648d204d03ee956ac57b11aa90551248b8f9
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Filesize
8KB
MD5c2252ee01d47f885c466fea46d77b337
SHA10e5e5e21dfdd47632831935e98d46fb4c4bf9168
SHA2567563681ee1464143363b1b7b6d59cef4c2a3b9a431c94feae043465cc7d23be0
SHA5128e0fdf90fc8c1c014b6c183dafa58ccf18251a3ea2e279c671a35ff702b60a5be3058c2eceac7a00e4b747796b1e1ed10a64abf95f26bd288980592db4e690d7
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Filesize
8KB
MD50cd27d2aa3bc58e4fc3c6639f4797e55
SHA11224947928cbdb0634d3aa7b374825552fe20fde
SHA256559dfe706ff2f2ce820748d25a91173972c89f6bb9510fba52f40815f018621c
SHA5129a595bfaa5ed85d895337a488969d75a00f33a6dd4e8759b95179428ea44922cccbef6189f08579ff806fe030e9833506c0aa8fedd1108622ffed3d0815d7d62
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Filesize
10KB
MD5c08cfa523c9377d3ae24fdb373b3ae13
SHA15289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c
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Filesize
20KB
MD5680f371f2918acd9c01ebd9b2624e191
SHA12f6d2bc41d8ec3c2cdddeb894f8af082a51acfa9
SHA2565cf738edd0028523f23a77d7dc02087e6f99cf1110f5b51766bf79f00bff6d09
SHA512df251b794acf1ede346f0b01bca3fe576b0d36d127f33e4942e8093625a40d6b74ec26fc51111ebba705a1e9c37d923069de98d2658b416d1f7410846f873e40
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Filesize
80KB
MD5f30fdbf3448f67cbc3566f31729cb7a6
SHA1fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA25681783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8
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Filesize
51KB
MD5588e67994dd9e1084cbe989ee0d7eecd
SHA11a9e7f30d4b14b2054c6947ec7b25024dac5c50e
SHA256d6a96251f4bd75df5e68bbc2ce0cea37e0c5fadf1bace5b035245832930a4d2c
SHA512ad9f235b9c03c391d2cd10f1fc0d07d748b305a254dc310da0ad6e1b27160f65a811a1586a632c4f331c5660a2cb77dec8f06b163c6c226f6a2c39b0d13af25e
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Filesize
10KB
MD50ec46393976eb51f307cc11d80bae845
SHA169d4cb168f3a1b97c37a0ba1519d0adb1ff7e245
SHA256252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d
SHA512803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f