satana | 021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3

General

Target

021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
Size

19KB
MD5

b7bbcacddaf239ec748b21ac54007c0e
SHA1

d6b9b0edbe1b2bfde48a9d91bfebec1035e2d821
SHA256

021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3
SHA512

8c46cdb5c8e25c965a64c5d704dfb5da6e5b8cab390b74b413353c03f6ec121d7aaad2c43fc222eefbf8e5a0057f35dc2e4fcb632ee3584f9d2311cc9aa20f7d

Score

10^/10

satana bootkit persistence ransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!satana!.txt

Ransom Note

You had bad luck.There was crypting of all your files in a FS bootkit virus <!SATANA!> To decrypt you need send on this E-mail: [email protected] your private code: A3D90235E1136671AB1195C6078184FF and pay on a Bitcoin Wallet: XsHmuuiWcMgjitqGaxdaafnBGCnP13zcy6 total 0,5 btc After that during 1 - 2 days the software will be sent to you - decryptor - and the necessary instructions. All changes in hardware configurations of your computer can make the decryption of your files absolutely impossible! Decryption of your files is possible only on your PC! Recovery is possible during 7 days, after which the program - decryptor - can not ask for the necessary signature from a public certificate server. Please contact via e-mail, which you can find as yet in the form of a text document in a folder with encrypted files, as well as in the name of all encrypted files.If you do not appreciate your files we recommend you format all your disks and reinstall the system. Read carefully this warning as it is no longer able to see at startup of the computer. We remind once again- it is all serious! Do not touch the configuration of your computer! E-mail: [email protected] - this is our mail CODE: A3D90235E1136671AB1195C6078184FF this is code; you must send BTC: XsHmuuiWcMgjitqGaxdaafnBGCnP13zcy6 here need to pay 0,5 bitcoins How to pay on the Bitcoin wallet you can easily find on the Internet. Enter your unlock code, obtained by E-mail here and press "ENTER" to continue the normal download on your computer. Good luck! May God help you! <!SATANA!>

Emails

[email protected]

Signatures

Satana
Ransomware family which also encrypts the system's Master Boot Record (MBR).
ransomware satana
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Executes dropped EXE 1 IoCs

pid	Process
664	zdcosa.exe

Deletes itself 1 IoCs

pid	Process
664	zdcosa.exe

Loads dropped DLL 5 IoCs

pid	Process
1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
664	zdcosa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\rkzwqdps = "C:\\Users\\Admin\\AppData\\Local\\Temp\\!satana!.txt"	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	zdcosa.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\!satana!.txt	zdcosa.exe
File created	C:\Program Files\!satana!.txt	zdcosa.exe
File created	C:\Program Files\7-Zip\!satana!.txt	zdcosa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
564	VSSADMIN.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	664	zdcosa.exe
Token: SeBackupPrivilege	1588	vssvc.exe
Token: SeRestorePrivilege	1588	vssvc.exe
Token: SeAuditPrivilege	1588	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 664	1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe	27
PID 1664 wrote to memory of 664	1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe	27
PID 1664 wrote to memory of 664	1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe	27
PID 1664 wrote to memory of 664	1664	021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe	27
PID 664 wrote to memory of 564	664	zdcosa.exe	28
PID 664 wrote to memory of 564	664	zdcosa.exe	28
PID 664 wrote to memory of 564	664	zdcosa.exe	28
PID 664 wrote to memory of 564	664	zdcosa.exe	28

C:\Users\Admin\AppData\Local\Temp\021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe
"C:\Users\Admin\AppData\Local\Temp\021e24623d999c5bd993873735d8c62202b6591199200d680ff94ca1cf2f58d3.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\zdcosa.exe
  "C:\Users\Admin\AppData\Local\Temp\zdcosa.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\021E24~1.EXE"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:664
- - C:\Windows\SysWOW64\VSSADMIN.EXE
    "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:564