teslacrypt | 3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f

Analysis

max time kernel
17s
max time network
28s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
22-10-2022 05:20

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General

Target

3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe
Size

352KB
MD5

19f576ab9aac3ea1285e1670b1e3b2b1
SHA1

dc54ed445f74b2a40c2abb4c8d6d6aeef56aeb3b
SHA256

3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f
SHA512

14095ad6edb0afd32c26a7f72404232e75c48afaecefb7507d0567479c67f4fc6c74a9a4d31827faf83c4b5968ae69e7bb0c6effe263779c13b630b4caf89edd
SSDEEP

6144:tWi+KRsvG89EXczNPhONmTnzcRhjgdJyTyT9tgfuKKeK8dGyvF:tEKb8NPENmjgRhjWJyTyBtgGT6Rv

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_ReCoVeRy_+tdrtx.txt

Family

teslacrypt

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 RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 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://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/723BA5C86EF0E8 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/723BA5C86EF0E8 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/723BA5C86EF0E8 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 3 - Type in the address bar: xlowfznrg4wf7dli.onion/723BA5C86EF0E8 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/723BA5C86EF0E8 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/723BA5C86EF0E8 http://yyre45dbvn2nhbefbmh.begumvelic.at/723BA5C86EF0E8 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/723BA5C86EF0E8

URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/723BA5C86EF0E8

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/723BA5C86EF0E8

http://yyre45dbvn2nhbefbmh.begumvelic.at/723BA5C86EF0E8

http://xlowfznrg4wf7dli.ONION/723BA5C86EF0E8

Signatures

TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
ransomware teslacrypt
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
4752	orfknrcjkwgv.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	orfknrcjkwgv.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\djivrlh = "C:\\Windows\\system32\\CMD.EXE /c start C:\\Windows\\orfknrcjkwgv.exe"	orfknrcjkwgv.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\WINDOWS\CurrentVersion\RUN	orfknrcjkwgv.exe

Drops file in Program Files directory 13 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\be.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bg.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bn.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\br.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\History.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\an.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ast.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ca.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\co.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\af.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ar.txt	orfknrcjkwgv.exe
File opened for modification	C:\Program Files\7-Zip\Lang\az.txt	orfknrcjkwgv.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\orfknrcjkwgv.exe	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe
File opened for modification	C:\Windows\orfknrcjkwgv.exe	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe
4752	orfknrcjkwgv.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe
Token: SeDebugPrivilege	4752	orfknrcjkwgv.exe
Token: SeIncreaseQuotaPrivilege	2796	WMIC.exe
Token: SeSecurityPrivilege	2796	WMIC.exe
Token: SeTakeOwnershipPrivilege	2796	WMIC.exe
Token: SeLoadDriverPrivilege	2796	WMIC.exe
Token: SeSystemProfilePrivilege	2796	WMIC.exe
Token: SeSystemtimePrivilege	2796	WMIC.exe
Token: SeProfSingleProcessPrivilege	2796	WMIC.exe
Token: SeIncBasePriorityPrivilege	2796	WMIC.exe
Token: SeCreatePagefilePrivilege	2796	WMIC.exe
Token: SeBackupPrivilege	2796	WMIC.exe
Token: SeRestorePrivilege	2796	WMIC.exe
Token: SeShutdownPrivilege	2796	WMIC.exe
Token: SeDebugPrivilege	2796	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2796	WMIC.exe
Token: SeRemoteShutdownPrivilege	2796	WMIC.exe
Token: SeUndockPrivilege	2796	WMIC.exe
Token: SeManageVolumePrivilege	2796	WMIC.exe
Token: 33	2796	WMIC.exe
Token: 34	2796	WMIC.exe
Token: 35	2796	WMIC.exe
Token: 36	2796	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2796	WMIC.exe
Token: SeSecurityPrivilege	2796	WMIC.exe
Token: SeTakeOwnershipPrivilege	2796	WMIC.exe
Token: SeLoadDriverPrivilege	2796	WMIC.exe
Token: SeSystemProfilePrivilege	2796	WMIC.exe
Token: SeSystemtimePrivilege	2796	WMIC.exe
Token: SeProfSingleProcessPrivilege	2796	WMIC.exe
Token: SeIncBasePriorityPrivilege	2796	WMIC.exe
Token: SeCreatePagefilePrivilege	2796	WMIC.exe
Token: SeBackupPrivilege	2796	WMIC.exe
Token: SeRestorePrivilege	2796	WMIC.exe
Token: SeShutdownPrivilege	2796	WMIC.exe
Token: SeDebugPrivilege	2796	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2796	WMIC.exe
Token: SeRemoteShutdownPrivilege	2796	WMIC.exe
Token: SeUndockPrivilege	2796	WMIC.exe
Token: SeManageVolumePrivilege	2796	WMIC.exe
Token: 33	2796	WMIC.exe
Token: 34	2796	WMIC.exe
Token: 35	2796	WMIC.exe
Token: 36	2796	WMIC.exe
Token: SeBackupPrivilege	2480	vssvc.exe
Token: SeRestorePrivilege	2480	vssvc.exe
Token: SeAuditPrivilege	2480	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 4752	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	83
PID 2820 wrote to memory of 4752	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	83
PID 2820 wrote to memory of 4752	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	83
PID 2820 wrote to memory of 4404	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	84
PID 2820 wrote to memory of 4404	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	84
PID 2820 wrote to memory of 4404	2820	3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe	84
PID 4752 wrote to memory of 2796	4752	orfknrcjkwgv.exe	89
PID 4752 wrote to memory of 2796	4752	orfknrcjkwgv.exe	89

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	orfknrcjkwgv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	orfknrcjkwgv.exe

C:\Users\Admin\AppData\Local\Temp\3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe
"C:\Users\Admin\AppData\Local\Temp\3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\orfknrcjkwgv.exe
  C:\Windows\orfknrcjkwgv.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4752
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\3A4176~1.EXE
  2⤵
  PID:4404

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Windows\orfknrcjkwgv.exe

Filesize
352KB

MD5
19f576ab9aac3ea1285e1670b1e3b2b1

SHA1
dc54ed445f74b2a40c2abb4c8d6d6aeef56aeb3b

SHA256
3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f

SHA512
14095ad6edb0afd32c26a7f72404232e75c48afaecefb7507d0567479c67f4fc6c74a9a4d31827faf83c4b5968ae69e7bb0c6effe263779c13b630b4caf89edd

Download Submit
C:\Windows\orfknrcjkwgv.exe

Filesize
352KB

MD5
19f576ab9aac3ea1285e1670b1e3b2b1

SHA1
dc54ed445f74b2a40c2abb4c8d6d6aeef56aeb3b

SHA256
3a417657bd1cbf0989c45b86f9c21b839e396ce7766771bedc4b77b83ecd313f

SHA512
14095ad6edb0afd32c26a7f72404232e75c48afaecefb7507d0567479c67f4fc6c74a9a4d31827faf83c4b5968ae69e7bb0c6effe263779c13b630b4caf89edd

Download Submit
memory/2820-132-0x0000000000400000-0x000000000049C000-memory.dmp

Filesize
624KB

Download
memory/2820-136-0x00000000009C0000-0x0000000000A46000-memory.dmp

Filesize
536KB

Download
memory/4752-145-0x0000000002120000-0x00000000021A6000-memory.dmp

Filesize
536KB

Download