ragnarok | db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785

General

Target

db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe
Size

228KB
MD5

e134d5a91ed31516566a091c0caa76fe
SHA1

260c54f8ef9450d2366794f35d0b291bdc133ec5
SHA256

db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785
SHA512

4bccd544d3f53e4240b62651465eee6347cf54501437cf7d6f79060707ba702f4ff16435aeb342099f4b238e7b7372a60a2271b3a9b537e4893d743874c8d1db
SSDEEP

3072:PaOtRGsL8/MmCtAyBsli4bnQC2mCr/yXt5NKMxyNuX987URxf+zgTP7VZKf:PhGsL8kfAyBslvAyd3KMxomvf+iC

Score

10^/10

ragnarok evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\How_To_Decrypt_My_Files.txt

Family

ragnarok

Ransom Note

#what happend? Unfortunately your files are encrypted, To decrypt your files follow the instructions 1. you need a decrypt tool so that you can decrypt all of your files 2. contact with us for our btc address if you want decrypt your files or you can do nothing just wait your files gona be deleted 3. you can provide a file which size less than 3M for us to prove that we can decrypt your files after you paid 4. it is wise to pay in the first time it wont cause you more losses DEVICE ID: ---------------------------- =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 ---------------------------- you can send your DEVICE ID to mail address below [email protected]

Emails

[email protected]

Signatures

Ragnarok
Ransomware family deployed from Citrix servers infected via CVE-2019-19781.
ransomware ragnarok
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
4100	bcdedit.exe
4472	bcdedit.exe

Renames multiple (420) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2832	netsh.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
4808	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe
3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4552	vssvc.exe
Token: SeRestorePrivilege	4552	vssvc.exe
Token: SeAuditPrivilege	4552	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 2716	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	85
PID 3440 wrote to memory of 2716	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	85
PID 3440 wrote to memory of 1064	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	86
PID 3440 wrote to memory of 1064	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	86
PID 3440 wrote to memory of 2180	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	87
PID 3440 wrote to memory of 2180	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	87
PID 3440 wrote to memory of 2700	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	88
PID 3440 wrote to memory of 2700	3440	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe	88
PID 2700 wrote to memory of 2832	2700	cmd.exe	89
PID 2700 wrote to memory of 2832	2700	cmd.exe	89
PID 2716 wrote to memory of 4808	2716	cmd.exe	90
PID 2716 wrote to memory of 4808	2716	cmd.exe	90
PID 1064 wrote to memory of 4472	1064	cmd.exe	92
PID 1064 wrote to memory of 4472	1064	cmd.exe	92
PID 2180 wrote to memory of 4100	2180	cmd.exe	91
PID 2180 wrote to memory of 4100	2180	cmd.exe	91

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe
"C:\Users\Admin\AppData\Local\Temp\db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785_JC.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c vssadmin delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4808
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:4472
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c bcdedit /set {current} recoveryenabled no
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} recoveryenabled no
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:4100
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c netsh advfirewall set allprofiles state off
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Windows\system32\netsh.exe
    netsh advfirewall set allprofiles state off
    3⤵
    - Modifies Windows Firewall
    PID:2832

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

3

T1490

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Downloads

C:\Users\Admin\Documents\How_To_Decrypt_My_Files.txt

Filesize
1KB

MD5
b3a48edd0d30ac6a7234f556e37ee44c

SHA1
9f0b4861751603bba0d8aca9712d9f51e563677e

SHA256
58c54f2308501b0e72615c524f83c470777a929fdd09a989e1e815eb35f4358f

SHA512
225eb5c642db5edf60692c66290f96949ed83525a474cf805f9fb65bd4693d3fa06e02e97680b1e0e58fa6f6555c16c17fb0cd1de0efe30cfa51ceddc07bcedb

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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