5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

General

Target

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
Size

604KB
MD5

8202b93966917230e6fc1f66f2761c18
SHA1

eeb91c80cd52416375e86af94734e98546a82072
SHA256

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c
SHA512

0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

Score

10^/10

evasion persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2372564722-193526734-2636556182-1000\_H_e_l_p_RECOVER_INSTRUCTIONS+urx.txt

Ransom Note

__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server. What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/C5DFAFA1B8FC926B 2. http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/C5DFAFA1B8FC926B 3. http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/C5DFAFA1B8FC926B If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/C5DFAFA1B8FC926B 4. Follow the instructions on the site. !!! IMPORTANT INFORMATION: !!! Your personal pages: http://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/C5DFAFA1B8FC926B http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/C5DFAFA1B8FC926B http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/C5DFAFA1B8FC926B !!! Your personal page Tor-Browser: fwgrhsao3aoml7ej.onion/C5DFAFA1B8FC926B !!! Your personal identification ID: C5DFAFA1B8FC926B

URLs

http://jj4dhbg4d86sdgrsdfzcadc.ziraimshi.com/C5DFAFA1B8FC926B

http://uu5dbnmsedf4s3jdnfbh34fsdf.parsesun.at/C5DFAFA1B8FC926B

http://perc54hg47fhnkjnfvcdgvdc.clinkjuno.com/C5DFAFA1B8FC926B

http://fwgrhsao3aoml7ej.onion/C5DFAFA1B8FC926B

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Modifies boot configuration data using bcdedit 1 TTPs 5 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exebcdedit.exebcdedit.exebcdedit.exe

pid process

3616 bcdedit.exe
3736 bcdedit.exe
2352 bcdedit.exe
2696 bcdedit.exe
5100 bcdedit.exe

pid	process
3616	bcdedit.exe
3736	bcdedit.exe
2352	bcdedit.exe
2696	bcdedit.exe
5100	bcdedit.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

krlvdcl.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	krlvdcl.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\addon_v57 = "C:\\Users\\Admin\\AppData\\Roaming\\krlvdcl.exe"	krlvdcl.exe

Executes dropped EXE 2 IoCs

Processes:

krlvdcl.exekrlvdcl.exe

pid process

4272 krlvdcl.exe
3328 krlvdcl.exe

pid	process
4272	krlvdcl.exe
3328	krlvdcl.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exekrlvdcl.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	krlvdcl.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exekrlvdcl.exe

description	pid	process	target process
PID 4872 set thread context of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4272 set thread context of 3328	4272	krlvdcl.exe	krlvdcl.exe

Drops file in Program Files directory 2 IoCs

Processes:

krlvdcl.exe

description	ioc	process
File opened for modification	C:\Program Files\7-Zip\Lang\af.txt	krlvdcl.exe
File opened for modification	C:\Program Files\7-Zip\History.txt	krlvdcl.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

Processes:

vssadmin.exe

pid process

2484 vssadmin.exe

pid	process
2484	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

krlvdcl.exe

pid	process
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe
3328	krlvdcl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exekrlvdcl.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
Token: SeDebugPrivilege	3328	krlvdcl.exe
Token: SeBackupPrivilege	4888	vssvc.exe
Token: SeRestorePrivilege	4888	vssvc.exe
Token: SeAuditPrivilege	4888	vssvc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exekrlvdcl.exe

pid process

4872 5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
4272 krlvdcl.exe

pid	process
4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
4272	krlvdcl.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exekrlvdcl.exekrlvdcl.exe

description	pid	process	target process
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 4872 wrote to memory of 1912	4872	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
PID 1912 wrote to memory of 4272	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	krlvdcl.exe
PID 1912 wrote to memory of 4272	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	krlvdcl.exe
PID 1912 wrote to memory of 4272	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	krlvdcl.exe
PID 1912 wrote to memory of 5076	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	cmd.exe
PID 1912 wrote to memory of 5076	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	cmd.exe
PID 1912 wrote to memory of 5076	1912	5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe	cmd.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 4272 wrote to memory of 3328	4272	krlvdcl.exe	krlvdcl.exe
PID 3328 wrote to memory of 3616	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 3616	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 2484	3328	krlvdcl.exe	vssadmin.exe
PID 3328 wrote to memory of 2484	3328	krlvdcl.exe	vssadmin.exe
PID 3328 wrote to memory of 3736	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 3736	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 2352	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 2352	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 2696	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 2696	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 5100	3328	krlvdcl.exe	bcdedit.exe
PID 3328 wrote to memory of 5100	3328	krlvdcl.exe	bcdedit.exe

C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
"C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe
  "C:\Users\Admin\AppData\Local\Temp\5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Users\Admin\AppData\Roaming\krlvdcl.exe
    C:\Users\Admin\AppData\Roaming\krlvdcl.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4272
  - - C:\Users\Admin\AppData\Roaming\krlvdcl.exe
      C:\Users\Admin\AppData\Roaming\krlvdcl.exe
      4⤵
      Adds policy Run key to start application
      Executes dropped EXE
      Checks computer location settings
      Drops file in Program Files directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3328
    - - C:\Windows\SYSTEM32\bcdedit.exe
        
        bcdedit.exe /set {current} bootems off
        5⤵
        Modifies boot configuration data using bcdedit
        
        PID:3616
    - - C:\Windows\System32\vssadmin.exe
        
        "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
        5⤵
        Interacts with shadow copies
        
        PID:2484
    - - C:\Windows\SYSTEM32\bcdedit.exe
        
        bcdedit.exe /set {current} advancedoptions off
        5⤵
        Modifies boot configuration data using bcdedit
        
        PID:3736
    - - C:\Windows\SYSTEM32\bcdedit.exe
        
        bcdedit.exe /set {current} optionsedit off
        5⤵
        Modifies boot configuration data using bcdedit
        
        PID:2352
    - - C:\Windows\SYSTEM32\bcdedit.exe
        
        bcdedit.exe /set {current} bootstatuspolicy IgnoreAllFailures
        5⤵
        Modifies boot configuration data using bcdedit
        
        PID:2696
    - - C:\Windows\SYSTEM32\bcdedit.exe
        
        bcdedit.exe /set {current} recoveryenabled off
        5⤵
        Modifies boot configuration data using bcdedit
        
        PID:5100
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\5F33D8~1.EXE
    3⤵
    PID:5076

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4888

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

3

T1490

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Downloads

C:\Users\Admin\AppData\Roaming\krlvdcl.exe

Filesize
604KB

MD5
8202b93966917230e6fc1f66f2761c18

SHA1
eeb91c80cd52416375e86af94734e98546a82072

SHA256
5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

SHA512
0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

Download Submit
C:\Users\Admin\AppData\Roaming\krlvdcl.exe

Filesize
604KB

MD5
8202b93966917230e6fc1f66f2761c18

SHA1
eeb91c80cd52416375e86af94734e98546a82072

SHA256
5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

SHA512
0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

Download Submit
C:\Users\Admin\AppData\Roaming\krlvdcl.exe

Filesize
604KB

MD5
8202b93966917230e6fc1f66f2761c18

SHA1
eeb91c80cd52416375e86af94734e98546a82072

SHA256
5f33d8e12648b1587cc12ba9270def7b63833bc10041e128bfded6c438e4058c

SHA512
0477f41c090a19aedf1268fffc02fc1c3ed709a09f4154da0b5658988be3efc023c9ef1e378602946dcbe14a00cf67fa58cd5deed1172bfad1338079fcedfc8c

Download Submit
memory/1912-142-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1912-131-0x0000000000000000-mapping.dmp

Download
memory/1912-135-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1912-136-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1912-132-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1912-133-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2352-152-0x0000000000000000-mapping.dmp

Download
memory/2484-150-0x0000000000000000-mapping.dmp

Download
memory/2696-153-0x0000000000000000-mapping.dmp

Download
memory/3328-143-0x0000000000000000-mapping.dmp

Download
memory/3328-147-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3328-146-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3328-148-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3328-155-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3616-149-0x0000000000000000-mapping.dmp

Download
memory/3736-151-0x0000000000000000-mapping.dmp

Download
memory/4272-137-0x0000000000000000-mapping.dmp

Download
memory/4272-140-0x0000000000800000-0x0000000000803000-memory.dmp

Filesize
12KB

Download
memory/4872-134-0x0000000002540000-0x0000000002543000-memory.dmp

Filesize
12KB

Download
memory/4872-130-0x0000000002540000-0x0000000002543000-memory.dmp

Filesize
12KB

Download
memory/5076-141-0x0000000000000000-mapping.dmp

Download
memory/5100-154-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads