teslacrypt | 4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3

General

Target

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe
Size

424KB
MD5

df23ae2c9888695539d87c39e521930f
SHA1

da9f86e5df799d26aa3c266e0854223b3b85aac9
SHA256

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3
SHA512

60c2e626a74ebfe322586daf86f56da4d2abedbe03f33583ed065b0702a3eb554702b6480e66802eff1756118cc73827b7833b258c0a49b10df9eb5123ad55bb
SSDEEP

6144:dWmfUHQSVs1ZYi9Cz3cnPOqURF7T16kCQ4B1oyjqnVhyfVoXbftChXW3AxfulDGq:kmfUHQS0GiGc6R6kXP/nVAcblCJxfS6

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+dijxw.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 AES More information about the encryption keys using AES can be found here: http://en.wikipedia.org/wiki/AES How did this happen ? !!! Specially for your PC was generated personal AES 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://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/664BA4DAD856B681 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/664BA4DAD856B681 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/664BA4DAD856B681 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/664BA4DAD856B681 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/664BA4DAD856B681 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/664BA4DAD856B681 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/664BA4DAD856B681 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/664BA4DAD856B681

URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/664BA4DAD856B681

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/664BA4DAD856B681

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/664BA4DAD856B681

http://xlowfznrg4wf7dli.ONION/664BA4DAD856B681

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

Processes:

ydojtfxhtpce.exe

pid process

1840 ydojtfxhtpce.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:

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exeydojtfxhtpce.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ydojtfxhtpce.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ydojtfxhtpce.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	ydojtfxhtpce.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lmpjxoksfhia = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\ydojtfxhtpce.exe\""	ydojtfxhtpce.exe

Drops file in Program Files directory 18 IoCs

Processes:

ydojtfxhtpce.exe

description	ioc	process
File opened for modification	C:\Program Files\7-Zip\Lang\af.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\an.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ast.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cy.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\da.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\be.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bg.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\co.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\el.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\History.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\br.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ca.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\de.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ar.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\az.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bn.txt	ydojtfxhtpce.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	ydojtfxhtpce.exe

Drops file in Windows directory 2 IoCs

Processes:

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe

description	ioc	process
File created	C:\Windows\ydojtfxhtpce.exe	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe
File opened for modification	C:\Windows\ydojtfxhtpce.exe	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.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 44 IoCs

Processes:

ydojtfxhtpce.exe

pid	process
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe
1840	ydojtfxhtpce.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

Processes:

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exeydojtfxhtpce.exeWMIC.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe
Token: SeDebugPrivilege	1840	ydojtfxhtpce.exe
Token: SeIncreaseQuotaPrivilege	4964	WMIC.exe
Token: SeSecurityPrivilege	4964	WMIC.exe
Token: SeTakeOwnershipPrivilege	4964	WMIC.exe
Token: SeLoadDriverPrivilege	4964	WMIC.exe
Token: SeSystemProfilePrivilege	4964	WMIC.exe
Token: SeSystemtimePrivilege	4964	WMIC.exe
Token: SeProfSingleProcessPrivilege	4964	WMIC.exe
Token: SeIncBasePriorityPrivilege	4964	WMIC.exe
Token: SeCreatePagefilePrivilege	4964	WMIC.exe
Token: SeBackupPrivilege	4964	WMIC.exe
Token: SeRestorePrivilege	4964	WMIC.exe
Token: SeShutdownPrivilege	4964	WMIC.exe
Token: SeDebugPrivilege	4964	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4964	WMIC.exe
Token: SeRemoteShutdownPrivilege	4964	WMIC.exe
Token: SeUndockPrivilege	4964	WMIC.exe
Token: SeManageVolumePrivilege	4964	WMIC.exe
Token: 33	4964	WMIC.exe
Token: 34	4964	WMIC.exe
Token: 35	4964	WMIC.exe
Token: 36	4964	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4964	WMIC.exe
Token: SeSecurityPrivilege	4964	WMIC.exe
Token: SeTakeOwnershipPrivilege	4964	WMIC.exe
Token: SeLoadDriverPrivilege	4964	WMIC.exe
Token: SeSystemProfilePrivilege	4964	WMIC.exe
Token: SeSystemtimePrivilege	4964	WMIC.exe
Token: SeProfSingleProcessPrivilege	4964	WMIC.exe
Token: SeIncBasePriorityPrivilege	4964	WMIC.exe
Token: SeCreatePagefilePrivilege	4964	WMIC.exe
Token: SeBackupPrivilege	4964	WMIC.exe
Token: SeRestorePrivilege	4964	WMIC.exe
Token: SeShutdownPrivilege	4964	WMIC.exe
Token: SeDebugPrivilege	4964	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4964	WMIC.exe
Token: SeRemoteShutdownPrivilege	4964	WMIC.exe
Token: SeUndockPrivilege	4964	WMIC.exe
Token: SeManageVolumePrivilege	4964	WMIC.exe
Token: 33	4964	WMIC.exe
Token: 34	4964	WMIC.exe
Token: 35	4964	WMIC.exe
Token: 36	4964	WMIC.exe
Token: SeBackupPrivilege	2320	vssvc.exe
Token: SeRestorePrivilege	2320	vssvc.exe
Token: SeAuditPrivilege	2320	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exeydojtfxhtpce.exe

description	pid	process	target process
PID 4256 wrote to memory of 1840	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	ydojtfxhtpce.exe
PID 4256 wrote to memory of 1840	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	ydojtfxhtpce.exe
PID 4256 wrote to memory of 1840	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	ydojtfxhtpce.exe
PID 4256 wrote to memory of 544	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	cmd.exe
PID 4256 wrote to memory of 544	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	cmd.exe
PID 4256 wrote to memory of 544	4256	4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe	cmd.exe
PID 1840 wrote to memory of 4964	1840	ydojtfxhtpce.exe	WMIC.exe
PID 1840 wrote to memory of 4964	1840	ydojtfxhtpce.exe	WMIC.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

ydojtfxhtpce.exe

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

C:\Users\Admin\AppData\Local\Temp\4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe
"C:\Users\Admin\AppData\Local\Temp\4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4256
- C:\Windows\ydojtfxhtpce.exe
  C:\Windows\ydojtfxhtpce.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:1840
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4053BD~1.EXE
  2⤵
  PID:544

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2320

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

1

T1490

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Downloads

C:\Windows\ydojtfxhtpce.exe

Filesize
424KB

MD5
df23ae2c9888695539d87c39e521930f

SHA1
da9f86e5df799d26aa3c266e0854223b3b85aac9

SHA256
4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3

SHA512
60c2e626a74ebfe322586daf86f56da4d2abedbe03f33583ed065b0702a3eb554702b6480e66802eff1756118cc73827b7833b258c0a49b10df9eb5123ad55bb

Download Submit
C:\Windows\ydojtfxhtpce.exe

Filesize
424KB

MD5
df23ae2c9888695539d87c39e521930f

SHA1
da9f86e5df799d26aa3c266e0854223b3b85aac9

SHA256
4053bd7f73a8df7ae21b935bdcaeb57d768d9ddb86c5c46856b3eb7175f2e2d3

SHA512
60c2e626a74ebfe322586daf86f56da4d2abedbe03f33583ed065b0702a3eb554702b6480e66802eff1756118cc73827b7833b258c0a49b10df9eb5123ad55bb

Download Submit
memory/544-142-0x0000000000000000-mapping.dmp

Download
memory/1840-136-0x0000000000000000-mapping.dmp

Download
memory/1840-145-0x0000000002190000-0x0000000002215000-memory.dmp

Filesize
532KB

Download
memory/4256-132-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/4256-139-0x00000000022A0000-0x0000000002325000-memory.dmp

Filesize
532KB

Download
memory/4964-146-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads