ragnarok | db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785

General

Target

db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.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\Downloads\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
2544	bcdedit.exe
3600	bcdedit.exe

Renames multiple (428) 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
4236	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
4660	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe
1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2096	vssvc.exe
Token: SeRestorePrivilege	2096	vssvc.exe
Token: SeAuditPrivilege	2096	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 4428	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	86
PID 1432 wrote to memory of 4428	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	86
PID 1432 wrote to memory of 3488	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	89
PID 1432 wrote to memory of 3488	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	89
PID 1432 wrote to memory of 888	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	88
PID 1432 wrote to memory of 888	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	88
PID 1432 wrote to memory of 4324	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	87
PID 1432 wrote to memory of 4324	1432	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	87
PID 4324 wrote to memory of 4236	4324	cmd.exe	90
PID 4324 wrote to memory of 4236	4324	cmd.exe	90
PID 3488 wrote to memory of 2544	3488	cmd.exe	91
PID 3488 wrote to memory of 2544	3488	cmd.exe	91
PID 4428 wrote to memory of 4660	4428	cmd.exe	92
PID 4428 wrote to memory of 4660	4428	cmd.exe	92
PID 888 wrote to memory of 3600	888	cmd.exe	93
PID 888 wrote to memory of 3600	888	cmd.exe	93

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.exe
"C:\Users\Admin\AppData\Local\Temp\db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c vssadmin delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4428
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4660
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c netsh advfirewall set allprofiles state off
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Windows\system32\netsh.exe
    netsh advfirewall set allprofiles state off
    3⤵
    - Modifies Windows Firewall
    PID:4236
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c bcdedit /set {current} recoveryenabled no
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:888
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} recoveryenabled no
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:3600
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3488
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:2544

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2096

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\Downloads\How_To_Decrypt_My_Files.txt

Filesize
1KB

MD5
749d6ed7a9f34de7b5d8b30960f74953

SHA1
78494f0fedabcbec02d8d8f05227e711e3cbcbd4

SHA256
f2ddb0c9f5185e89a26d7b3bc7f55346b25f33c19f090546e2dc07670643a874

SHA512
c3f0a42387d251fd3482c903171fa4dcf2791b282b8bad033fc75477c96d65b643f77c6b997e99f29e9aecd8a1a82f89d4407c2a7e87fc02d45ec7017a84fc3f

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads