Analysis
-
max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
12-04-2024 05:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe
Resource
win7-20240221-en
General
-
Target
2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe
-
Size
3.0MB
-
MD5
cabc3c8eb0441e5ee6822be4766a9e4d
-
SHA1
6bc0d0fe0bdce7849dd260126022e47f7099c9e9
-
SHA256
1cb8ede8cc22d89f9a3c3e4e821926f82317617250150db17d234b2624b52a52
-
SHA512
2340af738bed9266279b09520b1e0d671bead3398fdc7553d2eb1c07975ba629349c44ec62e7ab79223ef986512ff1b2d666755693d0cd1ae28deeee896e6a27
-
SSDEEP
49152:zZ8lB2MHidF9CKpz7rVb3RObyfH9IhyUU8XWcE/4A+TDwlQuPZRa9/efG3hNDCTT:d8B27xXr14nwlQubFfG3hNDCTV
Malware Config
Extracted
phorphiex
http://185.215.113.66/
0xAa3ea4838e8E3F6a1922c6B67E3cD6efD1ff175b
THRUoPK7oYqF7YyKZJvPYwTH35JsPZVPto
1Hw9tx4KyTq4oRoLVhPb4hjDJcLhEa4Tn6
qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut
XtxFdsKkRN3oVDXtN2ipcHeNi87basT2sL
LXMNcn9D8FQKzGNLjdSyR9dEM8Rsh9NzyX
rwn7tb5KQjXEjH42GgdHWHec5PPhVgqhSH
ARML6g7zynrwUHJbFJCCzMPiysUFXYBGgQ
48jYpFT6bT8MTeph7VsyzCQeDsGHqdQNc2kUkRFJPzfRHHjarBvBtudPUtParMkDzZbYBrd3yntWBQcsnVBNeeMbN9EXifg
3PL7YCa4akNYzuScqQwiSbtTP9q9E9PLreC
3FerB8kUraAVGCVCNkgv57zTBjUGjAUkU3
D9AJWrbYsidS9rAU146ifLRu1fzX9oQYSH
t1gvVWHnjbGTsoWXEyoTFojc2GqEzBgvbEn
bnb1cgttf7t5hu7ud3c436ufhcmy59qnkd09adqczd
bc1q0fusmmgycnhsd5cadsuz2hk8d4maausjfjypqg
bitcoincash:qr89hag2967ef604ud3lw4pq8hmn69n46czwdnx3ut
GAUCC7ZBSU2KJMHXOZD6AP5LOBGKNDPCDNRYP2CO2ACR63YCSUBNT5QE
Signatures
-
Processes:
226830419.exe2230522247.exe2361324715.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 226830419.exe -
Downloads MZ/PE file
-
Executes dropped EXE 8 IoCs
Processes:
8FDC.exe2361324715.exe226830419.exe2230522247.exe275354733.exe3098927184.exe3111528000.exe2585132584.exepid process 3836 8FDC.exe 2616 2361324715.exe 3548 226830419.exe 2076 2230522247.exe 5084 275354733.exe 3016 3098927184.exe 4376 3111528000.exe 2004 2585132584.exe -
Processes:
226830419.exe2230522247.exe2361324715.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 226830419.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2230522247.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" 2361324715.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 226830419.exe -
Adds Run key to start application 2 TTPs 6 IoCs
Processes:
2361324715.exe226830419.exe2230522247.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysdinrdvs.exe" 2361324715.exe Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\sysdinrdvs.exe" 2361324715.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\syspplsvc.exe" 226830419.exe Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\syspplsvc.exe" 226830419.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Windows\\winakrosvsa.exe" 2230522247.exe Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Service = "C:\\Users\\Admin\\winakrosvsa.exe" 2230522247.exe -
Drops file in Windows directory 6 IoCs
Processes:
2361324715.exe226830419.exe2230522247.exedescription ioc process File created C:\Windows\sysdinrdvs.exe 2361324715.exe File opened for modification C:\Windows\sysdinrdvs.exe 2361324715.exe File created C:\Windows\syspplsvc.exe 226830419.exe File opened for modification C:\Windows\syspplsvc.exe 226830419.exe File created C:\Windows\winakrosvsa.exe 2230522247.exe File opened for modification C:\Windows\winakrosvsa.exe 2230522247.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
Processes:
226830419.exepid process 3548 226830419.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exepid process 3332 2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe8FDC.exe2361324715.exe226830419.exedescription pid process target process PID 3332 wrote to memory of 3836 3332 2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe 8FDC.exe PID 3332 wrote to memory of 3836 3332 2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe 8FDC.exe PID 3332 wrote to memory of 3836 3332 2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe 8FDC.exe PID 3836 wrote to memory of 2616 3836 8FDC.exe 2361324715.exe PID 3836 wrote to memory of 2616 3836 8FDC.exe 2361324715.exe PID 3836 wrote to memory of 2616 3836 8FDC.exe 2361324715.exe PID 2616 wrote to memory of 3548 2616 2361324715.exe 226830419.exe PID 2616 wrote to memory of 3548 2616 2361324715.exe 226830419.exe PID 2616 wrote to memory of 3548 2616 2361324715.exe 226830419.exe PID 2616 wrote to memory of 2076 2616 2361324715.exe 2230522247.exe PID 2616 wrote to memory of 2076 2616 2361324715.exe 2230522247.exe PID 2616 wrote to memory of 2076 2616 2361324715.exe 2230522247.exe PID 3548 wrote to memory of 5084 3548 226830419.exe 275354733.exe PID 3548 wrote to memory of 5084 3548 226830419.exe 275354733.exe PID 3548 wrote to memory of 5084 3548 226830419.exe 275354733.exe PID 2616 wrote to memory of 3016 2616 2361324715.exe 3098927184.exe PID 2616 wrote to memory of 3016 2616 2361324715.exe 3098927184.exe PID 2616 wrote to memory of 3016 2616 2361324715.exe 3098927184.exe PID 3548 wrote to memory of 4376 3548 226830419.exe 3111528000.exe PID 3548 wrote to memory of 4376 3548 226830419.exe 3111528000.exe PID 3548 wrote to memory of 4376 3548 226830419.exe 3111528000.exe PID 3548 wrote to memory of 2004 3548 226830419.exe 2585132584.exe PID 3548 wrote to memory of 2004 3548 226830419.exe 2585132584.exe PID 3548 wrote to memory of 2004 3548 226830419.exe 2585132584.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-12_cabc3c8eb0441e5ee6822be4766a9e4d_ryuk.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Users\Admin\AppData\Local\Temp\8FDC.exe"C:\Users\Admin\AppData\Local\Temp\8FDC.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3836 -
C:\Users\Admin\AppData\Local\Temp\2361324715.exeC:\Users\Admin\AppData\Local\Temp\2361324715.exe3⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Users\Admin\AppData\Local\Temp\226830419.exeC:\Users\Admin\AppData\Local\Temp\226830419.exe4⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: SetClipboardViewer
- Suspicious use of WriteProcessMemory
PID:3548 -
C:\Users\Admin\AppData\Local\Temp\275354733.exeC:\Users\Admin\AppData\Local\Temp\275354733.exe5⤵
- Executes dropped EXE
PID:5084
-
-
C:\Users\Admin\AppData\Local\Temp\3111528000.exeC:\Users\Admin\AppData\Local\Temp\3111528000.exe5⤵
- Executes dropped EXE
PID:4376
-
-
C:\Users\Admin\AppData\Local\Temp\2585132584.exeC:\Users\Admin\AppData\Local\Temp\2585132584.exe5⤵
- Executes dropped EXE
PID:2004
-
-
-
C:\Users\Admin\AppData\Local\Temp\2230522247.exeC:\Users\Admin\AppData\Local\Temp\2230522247.exe4⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
PID:2076
-
-
C:\Users\Admin\AppData\Local\Temp\3098927184.exeC:\Users\Admin\AppData\Local\Temp\3098927184.exe4⤵
- Executes dropped EXE
PID:3016
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
14KB
MD5fce292c79288067dc17919ed588c161c
SHA1bb44fa2c95af5bbd11e49264a40c16d6f343fa21
SHA2564ef8146d85d60c2867bdbe44304b5ba00cceb208f4c10c9f91183308e1da3828
SHA51273dac29753044a720fc43b4ee19d320e06855167cdf0ebf329207aa16faa13fd6d2937bd87b54e544dd8d4c3da634773abd73769d3915154099ff01e6e03033e
-
Filesize
85KB
MD534a87206cee71119a2c6a02e0129718e
SHA1806643ae1b7685d64c2796227229461c8d526cd6
SHA256ecea49f9a754af7055b60a860acfd8ce2bc63048c947c9ee6324f07d45c4787d
SHA512e83b0e003687ebe5d5df5bd405b12b267e07252838d1575dc390b409e03279f9d0ce4a4691971a9601f58d52e55af2fa8ea9596ace4bef246f9ef511b65cdbc3
-
Filesize
8KB
MD593c0bd2539d4d4eb74fe6d41c928f66c
SHA1c7a2010ebd934828e20450c5318c8e20168f4ba8
SHA2565d9f88fcde1bd7fbe7ecba0dae737da96a55005b0d61c45c4251be0677195299
SHA512b8c7cdad4cf1ffd9a3bb6ffb36dabec957169bd43e27f0ec48c19693dd014c09916c0df0a46e808dba0450707c89e7dba7d3ff439d763fbe1e4d8b09fad2aad6
-
Filesize
14KB
MD52f4ab1a4a57649200550c0906d57bc28
SHA194bc52ed3921791630b2a001d9565b8f1bd3bd17
SHA256baa6149b5b917ea3af1f7c77a65e26a34a191a31a9c79726bd60baf4656701fa
SHA512ab1a59aa4c48f6c7fcf7950f4a68c3b89a56f266681a5aabd0df947af8340676e209d82ddd1997bfebd972b35ca235233b61231335aec4567f7b031e786ea7e8
-
Filesize
85KB
MD510ffc145e1c09190a496a0e0527b4f3f
SHA1e21fba21a11eecb4bc37638f48aed9f09d8912f6
SHA25680b7e224f28c6160737a313221b9fc94d5f5e933ae1438afef4b5fae33185b2d
SHA512bec357e73376f2e9e2963db5f7110a4c90de31a94edfaa7bf59c2f01b7bdd0c33e9a8024e995b7f0e67e332bc4aa0ec1280c7c28a24ba554772f8325e1badd1d
-
Filesize
84KB
MD5161a475bfe57d8b5317ca1f2f24b88fa
SHA138fa8a789d3d7570c411ddf4c038d89524142c2c
SHA25698fb81423a107a5359e5fc86f1c4d81ff2d4bc73b79f55a5bf827fdb8e620c54
SHA512d9f61f80c96fbac030c1105274f690d38d5dc8af360645102080a7caed7bad303ae89ed0e169124b834a68d1a669781eb70269bf4e8d5f34aeef394dd3d16547
-
Filesize
8KB
MD580f97c916a3eb0e5663761ac5ee1ddd1
SHA14ee54f2bf257f9490eaa2c988a5705ef7b11d2bc
SHA2569e06f61d715b1b88507e3e70390721ab7ab35d70fe2df6edaaf0e565783e7d2f
SHA51285e30cfc5c02543820f884602701986aa1e40d587da13c35b76b80dc95c0d6b3e18f5b0ad083fcfa3e9b92935306e4f8faec36ac28ac25e53fb03dcba4a092a6
-
Filesize
9KB
MD562b97cf4c0abafeda36e3fc101a5a022
SHA1328fae9acff3f17df6e9dc8d6ef1cec679d4eb2b
SHA256e172537adcee1fcdc8f16c23e43a5ac82c56a0347fa0197c08be979438a534ab
SHA51232bd7062aabd25205471cec8d292b820fc2fd2479da6fb723332887fc47036570bb2d25829acb7c883ccaaab272828c8effbc78f02a3deeabb47656f4b64eb24
-
Filesize
4KB
MD5d73cf76255ed3e90e72d98d28e8eddd3
SHA1d58abac9bb8e4bb30cea4ef3ba7aa19186189fb5
SHA256bfcb5f4589729deeeb57b92842933b144322a672cfe3ce11586f1aec83472781
SHA51220ef064050ba23e5163435c595bc9c81422ca3b8ac82338ff965961a954bd9c0da9b13f489997015565908d1105784b712ccc2b3a478fe990e4b99e071bfa9b2
-
Filesize
4KB
MD52b3a8538703b92b6929893654fe11c71
SHA19aee11e5d8363583a9eaeee5e138df8063ef7d23
SHA25650e1db0d011cee408730c4334addb8f5d15097b0fd8b30c2654883d24ad03bbb
SHA512dacc87a4b2af3845665e8259aabe980c42a087ed98eefc90f5280b774556aabe6ce0a4a1e89dbb65506be006cb8bd8c73c89a5e836f4fce496309993a29126ca