ragnarok | b7319f3e21c3941fc2a960b67a150b02f1f3389825164140e75dfa023a73d34c

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 12:51

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General

Target

since1969.exe
Size

210KB
MD5

48452dd2506831d0b340e45b08799623
SHA1

74993759f49d123ec334111f29cdbbf2e0276b58
SHA256

b7319f3e21c3941fc2a960b67a150b02f1f3389825164140e75dfa023a73d34c
SHA512

5a0b4f5884ae2d302661b0581ab2475c1403555af0f531e1d0c29e240454dfe9979a32979d30856c5ad5da0ea1ffac1ec2c16eb6fa07b7ece74e069fcf2e5958
SSDEEP

3072:LNWPHNek0igmpXlZwbvsBQUbtqJQW7xAZ22yz6VoSYMFZoJ8lsPGKLpZnoHq86fa:RGSigm1lmbaBp7O6qSYCiNPhzHa

Score

10^/10

ragnarok evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\!!ReadMe_To_Decrypt_My_Files.txt

Family

ragnarok

Ransom Note

It's not late to say happy new year right? but how didn't i bring a gift as the first time we met :) #what happend to your files? Unfortunately your files are encrypted with rsa4096 and aes encryption,you won't decrypt your files without our tool but don't worry,you can follow the instructions to decrypt your files 1.obviously you need a decrypt tool so that you can decrypt all of your files 2.contact with us for our btcoin address and send us your DEVICE ID after you decide to pay 3.i will reply a specific price e.g 1.0011 or 0.9099 after i received your mail including your DEVICE ID 4.i will send your personal decrypt tool only work on your own machine after i had check the ransom paystatus 5.you can provide a file less than 1M for us to prove that we can decrypt your files after you paid 6.it's wise to pay as soon as possible it wont make you more losses the ransome: 1 btcoin for per machine,5 bitcoins for all machines how to buy bitcoin and transfer? i think you are very good at googlesearch [email protected] [email protected] [email protected] Attention:if you wont pay the ransom in five days, all of your files will be made public on internet and will be deleted YOUR DEVICE ID: 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

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
2792	bcdedit.exe
2956	bcdedit.exe

Renames multiple (608) 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
2308	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

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File created	C:\Users\Public\Documents\desktop.ini	since1969.exe
File created	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\XOUCI7X0\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	since1969.exe
File created	C:\Users\Admin\Contacts\desktop.ini	since1969.exe
File created	C:\Users\Admin\Videos\desktop.ini	since1969.exe
File created	C:\Users\Public\Videos\Sample Videos\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\9ZA6L5EC\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\S14V3QJ7\desktop.ini	since1969.exe
File created	C:\Users\Public\Downloads\desktop.ini	since1969.exe
File created	C:\Users\Public\Recorded TV\desktop.ini	since1969.exe
File created	C:\Users\Admin\Desktop\desktop.ini	since1969.exe
File created	C:\Users\Admin\Documents\desktop.ini	since1969.exe
File created	C:\Users\Admin\Downloads\desktop.ini	since1969.exe
File created	C:\Users\Admin\Favorites\desktop.ini	since1969.exe
File created	C:\Users\Admin\Music\desktop.ini	since1969.exe
File created	C:\Users\Admin\Pictures\desktop.ini	since1969.exe
File created	C:\Users\Public\Music\desktop.ini	since1969.exe
File created	C:\Users\Public\Videos\desktop.ini	since1969.exe
File created	C:\Users\Public\Music\Sample Music\desktop.ini	since1969.exe
File created	C:\Users\Public\Desktop\desktop.ini	since1969.exe
File created	C:\Users\Public\Pictures\desktop.ini	since1969.exe
File created	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	since1969.exe
File created	C:\Users\Admin\Favorites\Links\desktop.ini	since1969.exe
File created	C:\Users\Admin\Favorites\Links for United States\desktop.ini	since1969.exe
File created	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	since1969.exe
File created	C:\Users\Public\desktop.ini	since1969.exe
File created	C:\Users\Admin\Links\desktop.ini	since1969.exe
File created	C:\Users\Admin\Saved Games\desktop.ini	since1969.exe
File created	C:\Users\Admin\Searches\desktop.ini	since1969.exe
File created	C:\Users\Public\Libraries\desktop.ini	since1969.exe
File created	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FZ6PR11S\desktop.ini	since1969.exe

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
2376	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2936	since1969.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2640	vssvc.exe
Token: SeRestorePrivilege	2640	vssvc.exe
Token: SeAuditPrivilege	2640	vssvc.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2996	2936	since1969.exe	28
PID 2936 wrote to memory of 2996	2936	since1969.exe	28
PID 2936 wrote to memory of 2996	2936	since1969.exe	28
PID 2936 wrote to memory of 2996	2936	since1969.exe	28
PID 2936 wrote to memory of 3012	2936	since1969.exe	31
PID 2936 wrote to memory of 3012	2936	since1969.exe	31
PID 2936 wrote to memory of 3012	2936	since1969.exe	31
PID 2936 wrote to memory of 3012	2936	since1969.exe	31
PID 2936 wrote to memory of 2172	2936	since1969.exe	30
PID 2936 wrote to memory of 2172	2936	since1969.exe	30
PID 2936 wrote to memory of 2172	2936	since1969.exe	30
PID 2936 wrote to memory of 2172	2936	since1969.exe	30
PID 2936 wrote to memory of 1240	2936	since1969.exe	29
PID 2936 wrote to memory of 1240	2936	since1969.exe	29
PID 2936 wrote to memory of 1240	2936	since1969.exe	29
PID 2936 wrote to memory of 1240	2936	since1969.exe	29
PID 2172 wrote to memory of 2792	2172	cmd.exe	36
PID 2172 wrote to memory of 2792	2172	cmd.exe	36
PID 2172 wrote to memory of 2792	2172	cmd.exe	36
PID 3012 wrote to memory of 2956	3012	cmd.exe	38
PID 3012 wrote to memory of 2956	3012	cmd.exe	38
PID 3012 wrote to memory of 2956	3012	cmd.exe	38
PID 2996 wrote to memory of 2376	2996	cmd.exe	37
PID 2996 wrote to memory of 2376	2996	cmd.exe	37
PID 2996 wrote to memory of 2376	2996	cmd.exe	37
PID 1240 wrote to memory of 2308	1240	cmd.exe	39
PID 1240 wrote to memory of 2308	1240	cmd.exe	39
PID 1240 wrote to memory of 2308	1240	cmd.exe	39

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\since1969.exe
"C:\Users\Admin\AppData\Local\Temp\since1969.exe"
1⤵
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\system32\cmd.exe
  cmd.exe /c vssadmin delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2996
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2376
- C:\Windows\system32\cmd.exe
  cmd.exe /c netsh advfirewall set allprofiles state off
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1240
- - C:\Windows\system32\netsh.exe
    netsh advfirewall set allprofiles state off
    3⤵
    - Modifies Windows Firewall
    PID:2308
- C:\Windows\system32\cmd.exe
  cmd.exe /c bcdedit /set {current} recoveryenabled no
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2172
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} recoveryenabled no
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:2792
- C:\Windows\system32\cmd.exe
  cmd.exe /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:2956

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\!!ReadMe_To_Decrypt_My_Files.txt

Filesize
2KB

MD5
dc105fe798cf2b0e855d1e7577a0e425

SHA1
4acf28751dfbcec114cf3387215af6da0ce1dd7e

SHA256
6bee385fef4b6c0c9cbcd8b3fc15b2825c7d0452ce378449002d0b38b3d95c6f

SHA512
bc7d59da453432df3e84eaea65463ff22ad4404332db2d888cf0e15a1f781a50ddedf1b9e2ffba599e51af1597391bb5ed62849b32785e81ae0f7632393e9079

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