sodinokibi | 83002399482a30115e37cea0222fdb265cc6d57101ca7ce4591374acd6b8a371

General

Target

uRzaV4mH.exe.dll
Size

116KB
MD5

586c80559a50dc4a431d36caaf3c2694
SHA1

f59dc0c154de3f02804f643047db9beb2f3a579a
SHA256

83002399482a30115e37cea0222fdb265cc6d57101ca7ce4591374acd6b8a371
SHA512

b79e1a4a28011ab62d8a86c8ceaa3d8dc8959b76fbe7744e9290e8c9d89dc8afaaf3e59a9b80c12885301fcfbc2b4045c65562470e3fde06cf7ed7e9c860594d

Score

10^/10

ransomware persistence sodinokibi

Malware Config

Extracted

Path

C:\b9nf0-readme.txt

Family

sodinokibi

Ransom Note

---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension b9nf0. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practice - time is much more valuable than money. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/3D51E0BA0E304706 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.cc/3D51E0BA0E304706 Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: Fzw2SJYhIIXy7Z3uTmbpEXc6+IkRV9J/J6Rw2Z4DlIUXfVP5pg5QreX7kaj7S/UW afIJ4vWoB3+rJ+8Mqxn4JSXxiZreGa1Y27srp/J+s6SAibcx4cfFHKvqUJQwPmzM PeXvNBsGi6ZGE8gdgyf5oczmcA2IR32DIQ2ahfiAaIcEHdiCo/tZEsNLAQ+I7wNJ ZBaPVIEruAkWYybbv0skFMUH3OXjPqKKp7sQthe1ZzIEbIdwYzZcHgBah4sV2T2L fDKcyMSGdmxNDlNJd3DzOVcaH0pQDsgRNuR8Rev8XnjmGudMq3nSjyZ7/hIj4hOf rml+HDegTRWnqjZFb9eXg78xunpOKq4B7tdEuNFDoZQKxpWTAhiYWhhYFwIOzaCU ZrV0RGiVIGBYv33NKhVHXvLiJUIIsrYyhCQPosg0SBVVw8/FxbSfj48o+NRcKNSw Zor13oCsrL+eZQtNemlAwN1ku6fH1394LuR34h4pGiQ9KWEWdwj/r4NesCPWgd2X xX2D5MQaTwp8j1rxUKqdC1JgUVG4n7iUc9qvTeDMc9AKslPZi49xqww0Hq2dc2B2 q8M6tp0NyvYi/YRRbK4NQanaIMciXC3QqMbZ5+1uuz74agtlRpOuhoZTcctIsgwO dFVs6K8KZAp8EmMJgc/m74882OoAIyHvxLS37rdtgLJ2tu9OtVdtAqSxdsyGa1V+ uKGr96jNpB0/xyK+xzO31dyD/wQBFzupErnQcjhw0Pos6aNSnKmtwPIg0XRbLc2L TQVyGmsyoi1NdnYdfWexKwNih0lYN53q0HCSXKR3qTepWfJwlbj/xLqo6WHm4LyP NIimJzv4VpYiY2dfAk8dUBfPG/WhwL/FXTQ8o81ND1qUVzz+U8EEsan1UMgJ6ao0 N6GeLBXca36+zrASJ6FJJ+SoD5WWczJ97mIXH+nr8mgqJRBPsu7duPoRMTr3EtsZ 3OfStWutwlFqw3ETV+9VcXWayfTy8E1VJ+witiHNHPJQWL1BRX5nJFnSbku0CedO eynRJBNCQHvHSisNLA7/Z56qV/NrMrOcNV2PAtzs6EmRAZ3qvUHgcBKzckY4ZrRD Gx64A6qwAafzgYFtQBiMnnOoe9gjkTaUs2EWekf6ifxuQI7k67uOj8yoeGA3f/cn y6qDKzOs8ZFEqo8d7rPij3/be9y0/zVKp3APNCEMrrChj7ezON9koOHyIkAIS0i0 nlppp3WAFMtqjKesMnbWIvoHqLGiiYyAgDLh0FevDKV9o2LEpqDaP6R5m0ljJG8t p1oUqdwGNuUJ/fxzHDk= ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damage of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!

URLs

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/3D51E0BA0E304706

http://decryptor.cc/3D51E0BA0E304706

Signatures

Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
ransomware sodinokibi

Blacklisted process makes network request 120 IoCs

Processes:

rundll32.exe

flow	pid	process
21	800	rundll32.exe
23	800	rundll32.exe
24	800	rundll32.exe
26	800	rundll32.exe
28	800	rundll32.exe
30	800	rundll32.exe
32	800	rundll32.exe
34	800	rundll32.exe
36	800	rundll32.exe
38	800	rundll32.exe
40	800	rundll32.exe
42	800	rundll32.exe
44	800	rundll32.exe
46	800	rundll32.exe
48	800	rundll32.exe
50	800	rundll32.exe
52	800	rundll32.exe
54	800	rundll32.exe
57	800	rundll32.exe
59	800	rundll32.exe
61	800	rundll32.exe
63	800	rundll32.exe
65	800	rundll32.exe
67	800	rundll32.exe
69	800	rundll32.exe
71	800	rundll32.exe
73	800	rundll32.exe
75	800	rundll32.exe
77	800	rundll32.exe
78	800	rundll32.exe
80	800	rundll32.exe
82	800	rundll32.exe
84	800	rundll32.exe
86	800	rundll32.exe
88	800	rundll32.exe
90	800	rundll32.exe
92	800	rundll32.exe
94	800	rundll32.exe
95	800	rundll32.exe
97	800	rundll32.exe
99	800	rundll32.exe
101	800	rundll32.exe
103	800	rundll32.exe
105	800	rundll32.exe
107	800	rundll32.exe
109	800	rundll32.exe
110	800	rundll32.exe
112	800	rundll32.exe
114	800	rundll32.exe
115	800	rundll32.exe
116	800	rundll32.exe
117	800	rundll32.exe
119	800	rundll32.exe
121	800	rundll32.exe
123	800	rundll32.exe
125	800	rundll32.exe
127	800	rundll32.exe
129	800	rundll32.exe
131	800	rundll32.exe
133	800	rundll32.exe
135	800	rundll32.exe
138	800	rundll32.exe
140	800	rundll32.exe
141	800	rundll32.exe

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	process
File opened for modification	\??\c:\users\admin\pictures\CompleteInvoke.tiff	rundll32.exe
File renamed	C:\Users\Admin\Pictures\FormatUnlock.tif => \??\c:\users\admin\pictures\FormatUnlock.tif.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\OpenRestart.tif => \??\c:\users\admin\pictures\OpenRestart.tif.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\StepWrite.tif => \??\c:\users\admin\pictures\StepWrite.tif.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SendUnblock.raw => \??\c:\users\admin\pictures\SendUnblock.raw.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SelectEnable.png => \??\c:\users\admin\pictures\SelectEnable.png.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SplitMount.raw => \??\c:\users\admin\pictures\SplitMount.raw.b9nf0	rundll32.exe
File opened for modification	\??\c:\users\admin\pictures\AddUse.tiff	rundll32.exe
File renamed	C:\Users\Admin\Pictures\CompleteInvoke.tiff => \??\c:\users\admin\pictures\CompleteInvoke.tiff.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\AddUse.tiff => \??\c:\users\admin\pictures\AddUse.tiff.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\HideCompare.tif => \??\c:\users\admin\pictures\HideCompare.tif.b9nf0	rundll32.exe
File renamed	C:\Users\Admin\Pictures\RenameTrace.raw => \??\c:\users\admin\pictures\RenameTrace.raw.b9nf0	rundll32.exe

Enumerates connected drives 3 TTPs 25 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\D:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\A:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\T:	rundll32.exe

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

vssvc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f5m2r8gm550.bmp"	rundll32.exe

Drops file in Program Files directory 37 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	\??\c:\program files\MountFormat.clr	rundll32.exe
File opened for modification	\??\c:\program files\SearchRemove.ram	rundll32.exe
File opened for modification	\??\c:\program files\WaitDisconnect.bmp	rundll32.exe
File opened for modification	\??\c:\program files\ConvertDebug.dib	rundll32.exe
File opened for modification	\??\c:\program files\PopAdd.ods	rundll32.exe
File opened for modification	\??\c:\program files\CloseRedo.ppsx	rundll32.exe
File opened for modification	\??\c:\program files\OptimizeComplete.txt	rundll32.exe
File opened for modification	\??\c:\program files\RenameGrant.aifc	rundll32.exe
File opened for modification	\??\c:\program files\SkipRename.odp	rundll32.exe
File opened for modification	\??\c:\program files\AssertRead.cr2	rundll32.exe
File opened for modification	\??\c:\program files\ConnectResize.midi	rundll32.exe
File opened for modification	\??\c:\program files\SavePing.rtf	rundll32.exe
File opened for modification	\??\c:\program files\SuspendOpen.wma	rundll32.exe
File opened for modification	\??\c:\program files\UnprotectRemove.aifc	rundll32.exe
File opened for modification	\??\c:\program files\WriteInitialize.001	rundll32.exe
File created	\??\c:\program files\b9nf0-readme.txt	rundll32.exe
File created	\??\c:\program files (x86)\b9nf0-readme.txt	rundll32.exe
File opened for modification	\??\c:\program files\ConnectWait.emf	rundll32.exe
File opened for modification	\??\c:\program files\GroupUndo.wmv	rundll32.exe
File opened for modification	\??\c:\program files\ProtectEnter.asf	rundll32.exe
File opened for modification	\??\c:\program files\UnblockPop.dotm	rundll32.exe
File opened for modification	\??\c:\program files\AddDebug.mov	rundll32.exe
File opened for modification	\??\c:\program files\DebugCompress.clr	rundll32.exe
File opened for modification	\??\c:\program files\EnableRepair.wm	rundll32.exe
File opened for modification	\??\c:\program files\PublishGrant.rar	rundll32.exe
File opened for modification	\??\c:\program files\SubmitSend.jpg	rundll32.exe
File opened for modification	\??\c:\program files\AssertExit.mpe	rundll32.exe
File opened for modification	\??\c:\program files\OptimizeConvert.mp3	rundll32.exe
File opened for modification	\??\c:\program files\PingShow.M2V	rundll32.exe
File opened for modification	\??\c:\program files\RestartMeasure.mov	rundll32.exe
File opened for modification	\??\c:\program files\UnregisterLock.wmf	rundll32.exe
File opened for modification	\??\c:\program files\ApproveSplit.m4v	rundll32.exe
File opened for modification	\??\c:\program files\ConvertToGrant.tiff	rundll32.exe
File opened for modification	\??\c:\program files\DenyInstall.asx	rundll32.exe
File opened for modification	\??\c:\program files\InitializeRename.svgz	rundll32.exe
File opened for modification	\??\c:\program files\PingRevoke.mht	rundll32.exe
File opened for modification	\??\c:\program files\RenameDismount.search-ms	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

800 rundll32.exe
800 rundll32.exe

pid	process
800	rundll32.exe
800	rundll32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

rundll32.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	800	rundll32.exe
Token: SeTakeOwnershipPrivilege	800	rundll32.exe
Token: SeBackupPrivilege	3444	vssvc.exe
Token: SeRestorePrivilege	3444	vssvc.exe
Token: SeAuditPrivilege	3444	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3956 wrote to memory of 800	3956	rundll32.exe	rundll32.exe
PID 3956 wrote to memory of 800	3956	rundll32.exe	rundll32.exe
PID 3956 wrote to memory of 800	3956	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\uRzaV4mH.exe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3956

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\uRzaV4mH.exe.dll,#1
2⤵
- Blacklisted process makes network request
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:800