satana | fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a

General

Target

fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
Size

108KB
MD5

53e1c922c52e8ad201949ca5c66609f6
SHA1

6c40ef2be382a141ade53b1349605da91784888c
SHA256

fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a
SHA512

cc5e1a56f28713dde1282c0d5ad4e593f41203fdfb0fdaec7ef3b168eded599bd1dbf75f479733b8b3d8a3682e831c874d9a99ba5dcfb1b10dcff3bd94bce33c

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: XtmxHRo8xkvaJ9FdNumLUARqsWvETHGCG5 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: XtmxHRo8xkvaJ9FdNumLUARqsWvETHGCG5 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
764	irytt.exe

Deletes itself 1 IoCs

pid	Process
764	irytt.exe

Loads dropped DLL 5 IoCs

pid	Process
1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
764	irytt.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-1-5-21-2329389628-4064185017-3901522362-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\zhkugp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\!satana!.txt"	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.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	irytt.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
1752	VSSADMIN.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	764	irytt.exe
Token: SeBackupPrivilege	1116	vssvc.exe
Token: SeRestorePrivilege	1116	vssvc.exe
Token: SeAuditPrivilege	1116	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 764	1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe	27
PID 1540 wrote to memory of 764	1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe	27
PID 1540 wrote to memory of 764	1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe	27
PID 1540 wrote to memory of 764	1540	fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe	27
PID 764 wrote to memory of 1752	764	irytt.exe	28
PID 764 wrote to memory of 1752	764	irytt.exe	28
PID 764 wrote to memory of 1752	764	irytt.exe	28
PID 764 wrote to memory of 1752	764	irytt.exe	28

C:\Users\Admin\AppData\Local\Temp\fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe
"C:\Users\Admin\AppData\Local\Temp\fd8e0e1aca4af2dfdd7861f351150ff5ce81ea390aeec04ba3f13802a408302a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Users\Admin\AppData\Local\Temp\irytt.exe
  "C:\Users\Admin\AppData\Local\Temp\irytt.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\FD8E0E~1.EXE"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:764
- - C:\Windows\SysWOW64\VSSADMIN.EXE
    "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:1752

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/764-65-0x0000000073C71000-0x0000000073C73000-memory.dmp

Filesize
8KB

Download
memory/1540-55-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download

Analysis

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