Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
25/03/2025, 20:28
Static task
static1
Behavioral task
behavioral1
Sample
2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe
Resource
win7-20241010-en
General
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Target
2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe
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Size
286KB
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MD5
0eb4f5a83dab65e4ae4befc95e36eea8
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SHA1
1e8e57b541cf633d2d5d66066167aa3a30b250c5
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SHA256
dec5752d980182e4ae33a4edc0242a53655d5e8c01aee0a6a0f75705a6aa5cf4
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SHA512
2c87574ec111e22028e93a1798888c30d05bbd1c870a48ff634503452077a217e2e7b902430852e7b3ad988d8282f6684a1a5ae393a87ac4cb2b6f35d70db7bf
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SSDEEP
3072:/IEQef2xyLHUTmCqvDO0Od6NBZNnUdAYZJj3hLKKKKKU8AAFTbp8ELQHsoOJNuY/:ZQB47UFq7O16NBZN7kofJXnIZRO
Malware Config
Extracted
phorphiex
http://185.215.113.66/
http://45.93.20.18/
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LdgchXq1sKbAaAJ1EXAPSRBzLb8jnTZstT
MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q
4AtjkCVKbtEC3UEN77SQHuH9i1XkzNiRi5VCbA2XGsJh46nJSXfGQn4GjLuupCqmC57Lo7LvKmFUyRfhtJSvKvuw3h9ReKK
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
0xCa90599132C4D88907Bd8E046540284aa468a035
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3ESHude8zUHksQg1h6hHmzY79BS36L91Yn
CSLKveRL2zqkbV2TqiFVuW6twtpqgFajoUZLAJQTTQk2
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
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mutex
k9ubbn6sdfs
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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://185.215.113.66
http://45.93.20.18
185.215.113.66
Signatures
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Phorphiex family
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Phorphiex payload 1 IoCs
resource yara_rule behavioral1/files/0x00070000000170f8-9.dat family_phorphiex -
Xmrig family
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XMRig Miner payload 9 IoCs
resource yara_rule behavioral1/memory/1520-81-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-80-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-86-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-85-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-84-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-83-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-87-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-89-0x0000000140000000-0x0000000140835000-memory.dmp xmrig behavioral1/memory/1520-90-0x0000000140000000-0x0000000140835000-memory.dmp xmrig -
Creates new service(s) 2 TTPs
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Downloads MZ/PE file 4 IoCs
flow pid Process 3 1684 2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe 7 2880 C8AC.exe 13 1868 2514718031.exe 13 1868 2514718031.exe -
Stops running service(s) 4 TTPs
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Executes dropped EXE 10 IoCs
pid Process 2880 C8AC.exe 2628 141773740.exe 2356 sysldrvcs.exe 1868 2514718031.exe 2728 47832839.exe 296 336209667.exe 832 518427598.exe 1644 2724918979.exe 464 Process not Found 1308 sysdoruhgsf.exe -
Loads dropped DLL 9 IoCs
pid Process 2880 C8AC.exe 2880 C8AC.exe 2356 sysldrvcs.exe 1868 2514718031.exe 2356 sysldrvcs.exe 1868 2514718031.exe 1868 2514718031.exe 1868 2514718031.exe 464 Process not Found -
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\\sysldrvcs.exe" 141773740.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1308 set thread context of 620 1308 sysdoruhgsf.exe 50 PID 1308 set thread context of 1520 1308 sysdoruhgsf.exe 51 -
resource yara_rule behavioral1/memory/1520-79-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-81-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-80-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-78-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-77-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-76-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-75-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-86-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-85-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-84-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-83-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-87-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-89-0x0000000140000000-0x0000000140835000-memory.dmp upx behavioral1/memory/1520-90-0x0000000140000000-0x0000000140835000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\sysldrvcs.exe 141773740.exe File opened for modification C:\Windows\sysldrvcs.exe 141773740.exe -
Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 900 sc.exe 1936 sc.exe 1456 sc.exe 708 sc.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 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 C8AC.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 141773740.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysldrvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2514718031.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 336209667.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1644 2724918979.exe 1644 2724918979.exe 1644 2724918979.exe 1644 2724918979.exe 1308 sysdoruhgsf.exe 1308 sysdoruhgsf.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeLockMemoryPrivilege 1520 dwm.exe -
Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 1684 wrote to memory of 2880 1684 2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe 30 PID 1684 wrote to memory of 2880 1684 2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe 30 PID 1684 wrote to memory of 2880 1684 2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe 30 PID 1684 wrote to memory of 2880 1684 2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe 30 PID 2880 wrote to memory of 2628 2880 C8AC.exe 32 PID 2880 wrote to memory of 2628 2880 C8AC.exe 32 PID 2880 wrote to memory of 2628 2880 C8AC.exe 32 PID 2880 wrote to memory of 2628 2880 C8AC.exe 32 PID 2628 wrote to memory of 2356 2628 141773740.exe 33 PID 2628 wrote to memory of 2356 2628 141773740.exe 33 PID 2628 wrote to memory of 2356 2628 141773740.exe 33 PID 2628 wrote to memory of 2356 2628 141773740.exe 33 PID 2356 wrote to memory of 1868 2356 sysldrvcs.exe 35 PID 2356 wrote to memory of 1868 2356 sysldrvcs.exe 35 PID 2356 wrote to memory of 1868 2356 sysldrvcs.exe 35 PID 2356 wrote to memory of 1868 2356 sysldrvcs.exe 35 PID 1868 wrote to memory of 2728 1868 2514718031.exe 36 PID 1868 wrote to memory of 2728 1868 2514718031.exe 36 PID 1868 wrote to memory of 2728 1868 2514718031.exe 36 PID 1868 wrote to memory of 2728 1868 2514718031.exe 36 PID 2356 wrote to memory of 296 2356 sysldrvcs.exe 38 PID 2356 wrote to memory of 296 2356 sysldrvcs.exe 38 PID 2356 wrote to memory of 296 2356 sysldrvcs.exe 38 PID 2356 wrote to memory of 296 2356 sysldrvcs.exe 38 PID 1868 wrote to memory of 832 1868 2514718031.exe 39 PID 1868 wrote to memory of 832 1868 2514718031.exe 39 PID 1868 wrote to memory of 832 1868 2514718031.exe 39 PID 1868 wrote to memory of 832 1868 2514718031.exe 39 PID 1868 wrote to memory of 1644 1868 2514718031.exe 40 PID 1868 wrote to memory of 1644 1868 2514718031.exe 40 PID 1868 wrote to memory of 1644 1868 2514718031.exe 40 PID 1868 wrote to memory of 1644 1868 2514718031.exe 40 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 620 1308 sysdoruhgsf.exe 50 PID 1308 wrote to memory of 1520 1308 sysdoruhgsf.exe 51 PID 1308 wrote to memory of 1520 1308 sysdoruhgsf.exe 51 PID 1308 wrote to memory of 1520 1308 sysdoruhgsf.exe 51 PID 1308 wrote to memory of 1520 1308 sysdoruhgsf.exe 51 PID 1308 wrote to memory of 1520 1308 sysdoruhgsf.exe 51
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-25_0eb4f5a83dab65e4ae4befc95e36eea8_hijackloader_ryuk.exe"1⤵
- Downloads MZ/PE file
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Users\Admin\AppData\Local\Temp\C8AC.exe"C:\Users\Admin\AppData\Local\Temp\C8AC.exe"2⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Users\Admin\AppData\Local\Temp\141773740.exeC:\Users\Admin\AppData\Local\Temp\141773740.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:2628 -
C:\Windows\sysldrvcs.exeC:\Windows\sysldrvcs.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Users\Admin\AppData\Local\Temp\2514718031.exeC:\Users\Admin\AppData\Local\Temp\2514718031.exe5⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Users\Admin\AppData\Local\Temp\47832839.exeC:\Users\Admin\AppData\Local\Temp\47832839.exe6⤵
- Executes dropped EXE
PID:2728
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C:\Users\Admin\AppData\Local\Temp\518427598.exeC:\Users\Admin\AppData\Local\Temp\518427598.exe6⤵
- Executes dropped EXE
PID:832
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C:\Users\Admin\AppData\Local\Temp\2724918979.exeC:\Users\Admin\AppData\Local\Temp\2724918979.exe6⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1644 -
C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe delete "MgrDrvSvc"7⤵
- Launches sc.exe
PID:900
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe create "MgrDrvSvc" binpath= "C:\ProgramData\MgrDrvSvc\sysdoruhgsf.exe" start= "auto"7⤵
- Launches sc.exe
PID:1936
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe stop eventlog7⤵
- Launches sc.exe
PID:708
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe start "MgrDrvSvc"7⤵
- Launches sc.exe
PID:1456
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C:\Users\Admin\AppData\Local\Temp\336209667.exeC:\Users\Admin\AppData\Local\Temp\336209667.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:296
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C:\ProgramData\MgrDrvSvc\sysdoruhgsf.exeC:\ProgramData\MgrDrvSvc\sysdoruhgsf.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Windows\system32\conhost.exeC:\Windows\system32\conhost.exe2⤵PID:620
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C:\Windows\system32\dwm.exedwm.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1520
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
10KB
MD521789ebcbfca1eb0c6881e6af6216a81
SHA130152ddbe1150a2a612eb7b08e6551830276c8f0
SHA256c0d12405d2a5cd6064e6e498d6f5f7fd48c72b2d02f171f20f898a4d2832968c
SHA512cf3296247865130e4e769f09280d5f15237bedf474734f7b383130dfd01c5407a081e3f571152c393845b08d8ed48a0b2d23d11e905783332fb2552d20ad4514
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Filesize
101KB
MD58a30adfbb8c9ed8170177ce8c5738fbf
SHA12d029ddd39fe81a08982dd4309a74045aa91004f
SHA25672b19310a8c3cdfc23be1041eb773e6e41a08ec608e53b027b32e05a275b1da9
SHA5128885308b53b8d1baab14a98ec257acac9c700f2cebe48cbb79a25e3d7133f0016ba082ec9f8397c9b1677375dd5a1d3894d813aba5947f267b44b012fa6a027f
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Filesize
13KB
MD5181921fd5d4f7e043b446392233698ee
SHA10f710714ea4c01446dcb2ea4f29256fd53633f5c
SHA256aed4ab578ba8613117a2132bee215cdc3b360a1d9f993ad937ed3eecd7e9f3e6
SHA512a04699fa408ceb79f89cf61f2bea6ab85b6d93b52989f7d5ba6bdb22964fe8bc2a19aa3e1a02b063b11f8a63f3d3582ba0a621b97d911c27e2010fe9df5c6172
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Filesize
2.5MB
MD5024dd77c38676e6ce0a5a2201f6145de
SHA15d020adf1adb0b0c0b370df63b2b09d89df0acfb
SHA256b4553ff5d7ae98614d4856de134f49e503f046a15fc49033af3232fbeab9ed4c
SHA512a94312eaea187830c28680164d80e3e9c2f58a7b24930dc224ac52a308406ccfd56524dffaf5c3a37e6b713d1d711f1b44d99d1fb60669c8b2351bb4c9d2fc85
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Filesize
19KB
MD59adb4c4939743d5f3e670b4d783d38e5
SHA17c989249b99b82def352f66bc97d9403fd6e653b
SHA256be502d8d90235a3c317e97cacb55b0eb5ec2aa8c50a582ec6f0527d08e99a759
SHA5127573981af4fc4845e4af61067e4620b92aace90b4ac218a14920dc6f93bddafac92a8f7b02c61f3d41b42ba9f1aabbea3c215dc439da3e9c9dc68060c9a53ac1
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Filesize
53KB
MD560686a27b79838583920c9a0954104c9
SHA10c253b3c72cd5b01a9403230ff3ec9d3cdd8b71c
SHA256270149da5feb9487799083b5e76d41d3aa69afaf8f731e72e7d64c3a7c070c7e
SHA512c0a9308b5a3baca0906c9663ca3e3eaf64fc131aaa5358557874b30e4b743ffe898da6fbace032c3481693bf9081f938127fd07c8d550d9eb74958b20e24ab04
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Filesize
20KB
MD52e5f10745392643c8cf21aae4241e4cc
SHA1ad390d62e2215a37a3faf5e0cb3f0f3244452c07
SHA25644db578a4075ab126df387da3fa757f76bd3074606f3a9be21ee55ec6ac1ed29
SHA51285e63e752fc43d4b2be83628f5f8dcb288276c5369a3e940f795e87409f70473221d2d28a87f04e68c126bc0836171310d00247f240e05f4618e1f9393b132af