Analysis
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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
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 behavioral2/files/0x001900000002af36-10.dat family_phorphiex -
Downloads MZ/PE file 2 IoCs
flow pid Process 3 2784 4A57.exe 1 1108 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe -
Stops running service(s) 4 TTPs
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Executes dropped EXE 9 IoCs
pid Process 2784 4A57.exe 712 3218727625.exe 4876 syscrondvr.exe 3916 syscrondvr.exe 4116 1721821951.exe 4500 2376713009.exe 3540 109114021.exe 276 212042377.exe 2484 2066818949.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" 3218727625.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\syscrondvr.exe 3218727625.exe File opened for modification C:\Windows\syscrondvr.exe 3218727625.exe -
Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3024 sc.exe 3464 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 4A57.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3218727625.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language syscrondvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2376713009.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 109114021.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 212042377.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4116 1721821951.exe 2484 2066818949.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4116 1721821951.exe Token: SeDebugPrivilege 2484 2066818949.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 1108 wrote to memory of 2784 1108 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 79 PID 1108 wrote to memory of 2784 1108 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 79 PID 1108 wrote to memory of 2784 1108 2025-05-14_78537138f22853e082b0733cfce04842_black-basta_ryuk.exe 79 PID 2784 wrote to memory of 712 2784 4A57.exe 80 PID 2784 wrote to memory of 712 2784 4A57.exe 80 PID 2784 wrote to memory of 712 2784 4A57.exe 80 PID 712 wrote to memory of 4876 712 3218727625.exe 82 PID 712 wrote to memory of 4876 712 3218727625.exe 82 PID 712 wrote to memory of 4876 712 3218727625.exe 82 PID 2792 wrote to memory of 3916 2792 cmd.exe 84 PID 2792 wrote to memory of 3916 2792 cmd.exe 84 PID 2792 wrote to memory of 3916 2792 cmd.exe 84 PID 4876 wrote to memory of 4116 4876 syscrondvr.exe 85 PID 4876 wrote to memory of 4116 4876 syscrondvr.exe 85 PID 4116 wrote to memory of 1688 4116 1721821951.exe 86 PID 4116 wrote to memory of 1688 4116 1721821951.exe 86 PID 1688 wrote to memory of 3024 1688 cmd.exe 88 PID 1688 wrote to memory of 3024 1688 cmd.exe 88 PID 1688 wrote to memory of 2572 1688 cmd.exe 89 PID 1688 wrote to memory of 2572 1688 cmd.exe 89 PID 4876 wrote to memory of 4500 4876 syscrondvr.exe 90 PID 4876 wrote to memory of 4500 4876 syscrondvr.exe 90 PID 4876 wrote to memory of 4500 4876 syscrondvr.exe 90 PID 4876 wrote to memory of 3540 4876 syscrondvr.exe 91 PID 4876 wrote to memory of 3540 4876 syscrondvr.exe 91 PID 4876 wrote to memory of 3540 4876 syscrondvr.exe 91 PID 4876 wrote to memory of 276 4876 syscrondvr.exe 92 PID 4876 wrote to memory of 276 4876 syscrondvr.exe 92 PID 4876 wrote to memory of 276 4876 syscrondvr.exe 92 PID 4876 wrote to memory of 2484 4876 syscrondvr.exe 93 PID 4876 wrote to memory of 2484 4876 syscrondvr.exe 93 PID 2484 wrote to memory of 3056 2484 2066818949.exe 94 PID 2484 wrote to memory of 3056 2484 2066818949.exe 94 PID 3056 wrote to memory of 3464 3056 cmd.exe 96 PID 3056 wrote to memory of 3464 3056 cmd.exe 96 PID 3056 wrote to memory of 2876 3056 cmd.exe 97 PID 3056 wrote to memory of 2876 3056 cmd.exe 97
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: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.exeC:\Users\Admin\AppData\Local\Temp\3218727625.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:712 -
C:\Windows\syscrondvr.exeC:\Windows\syscrondvr.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Users\Admin\AppData\Local\Temp\1721821951.exeC:\Users\Admin\AppData\Local\Temp\1721821951.exe5⤵
- 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" /f6⤵
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\system32\sc.exesc delete "DrvTcfgsvc"7⤵
- Launches sc.exe
PID:3024
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C:\Windows\system32\reg.exereg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvTcfgsvc" /f7⤵PID:2572
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C:\Users\Admin\AppData\Local\Temp\2376713009.exeC:\Users\Admin\AppData\Local\Temp\2376713009.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4500
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C:\Users\Admin\AppData\Local\Temp\109114021.exeC:\Users\Admin\AppData\Local\Temp\109114021.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3540
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C:\Users\Admin\AppData\Local\Temp\212042377.exeC:\Users\Admin\AppData\Local\Temp\212042377.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:276
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C:\Users\Admin\AppData\Local\Temp\2066818949.exeC:\Users\Admin\AppData\Local\Temp\2066818949.exe5⤵
- 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" /f6⤵
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\system32\sc.exesc delete "DrvCfgSvcs"7⤵
- Launches sc.exe
PID:3464
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C:\Windows\system32\reg.exereg delete "HKLM\SYSTEM\CurrentControlSet\Services\DrvCfgSvcs" /f7⤵PID:2876
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\syscrondvr.exe1⤵
- Suspicious use of WriteProcessMemory
PID:2792 -
C:\Windows\syscrondvr.exeC:\Windows\syscrondvr.exe2⤵
- Executes dropped EXE
PID:3916
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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
MD5de75c43a265d0848584ae05945570edf
SHA169f95177914f8d8b2f278a91f585a0024b8dffd3
SHA256d9bdf6a2bfdd9b2b5c8593de17ade3d8d317dad331aa6ca0da7483dd06db1140
SHA512365f29c693dd7aa2ade092d765a96f20bf1f7fa93bca7f3b25aeddf5700817b9fd388e8f7d9f1b781c8a876739b06ad16d61e7ed08a1c85ac4be4686a38c63bc
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Filesize
20KB
MD5680f371f2918acd9c01ebd9b2624e191
SHA12f6d2bc41d8ec3c2cdddeb894f8af082a51acfa9
SHA2565cf738edd0028523f23a77d7dc02087e6f99cf1110f5b51766bf79f00bff6d09
SHA512df251b794acf1ede346f0b01bca3fe576b0d36d127f33e4942e8093625a40d6b74ec26fc51111ebba705a1e9c37d923069de98d2658b416d1f7410846f873e40
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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
51KB
MD5588e67994dd9e1084cbe989ee0d7eecd
SHA11a9e7f30d4b14b2054c6947ec7b25024dac5c50e
SHA256d6a96251f4bd75df5e68bbc2ce0cea37e0c5fadf1bace5b035245832930a4d2c
SHA512ad9f235b9c03c391d2cd10f1fc0d07d748b305a254dc310da0ad6e1b27160f65a811a1586a632c4f331c5660a2cb77dec8f06b163c6c226f6a2c39b0d13af25e
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Filesize
10KB
MD5c08cfa523c9377d3ae24fdb373b3ae13
SHA15289219770ad28b0fa4f0bdd91817f76bd6be222
SHA256326c70a965d4e642275c26cd913e268b1db89edd59b31a86ee600a7a9c664eb0
SHA512c91acd580ac832d5fed363a9a2b98b724a255d82e4fdda6eca62133feb5e60dd79a8caca36597a52bfbfa907a44208c48b15142e2e6020db219d14e970c3f57c
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Filesize
80KB
MD5f30fdbf3448f67cbc3566f31729cb7a6
SHA1fbf005c38f4a1c2e86817a2cb70406fc241f2c90
SHA25681783b558904becc5b86553faba9525070de5f43339766eb1c025bcfbfe1eef8
SHA512b428df2c8f8b4a002c8d7e1bfd9926e5cf95ee998688a2c360b8551e80be5bfbfa17ef210bea35f247da4a5c8a940fb5dba49f4786da9a74e5d001b771c8e9a8
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Filesize
10KB
MD50ec46393976eb51f307cc11d80bae845
SHA169d4cb168f3a1b97c37a0ba1519d0adb1ff7e245
SHA256252171bdaa35d19f872c165e861b03d347a4afb85d7a03d02f8eae09d191038d
SHA512803351760e3c422e4825103235e13085004b3418b483a2c646aafaef62b7212a1ba4ed28469134a236c5b6121e6a748ba958bbae2dbe4afe9f9f45704928d31f