teslacrypt | aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7

General

Target

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe
Size

428KB
MD5

0b23d4fb182a5b4a11cffabe59346ebb
SHA1

060c3991d04379ab5e2d7ba3e743c37c08f33efc
SHA256

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7
SHA512

ea82eb72a954c718a36acde103340a2023f450d7680e866bc9dcac8ad544f880ecb0616264b8e855fb72cb562012c46816c7521446d47df4d4fd27953c50ae4b
SSDEEP

12288:CzUgz5mSAKNuYH+eCGdFCWhLblCJxfS6:CzUOpQYeeCoFhvOR1

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2629973501-4017243118-3254762364-1000\_RECoVERY_+jaitk.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/A9BDDA47CB1719 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/A9BDDA47CB1719 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A9BDDA47CB1719 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/A9BDDA47CB1719 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/A9BDDA47CB1719 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/A9BDDA47CB1719 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A9BDDA47CB1719 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/A9BDDA47CB1719

URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/A9BDDA47CB1719

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/A9BDDA47CB1719

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A9BDDA47CB1719

http://xlowfznrg4wf7dli.ONION/A9BDDA47CB1719

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:

rlypekrrqotu.exe

pid process

4636 rlypekrrqotu.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:

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exerlypekrrqotu.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	rlypekrrqotu.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rlypekrrqotu.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	rlypekrrqotu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\glermpwqblkw = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\rlypekrrqotu.exe\""	rlypekrrqotu.exe

Drops file in Program Files directory 23 IoCs

Processes:

rlypekrrqotu.exe

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

Drops file in Windows directory 2 IoCs

Processes:

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe

description	ioc	process
File created	C:\Windows\rlypekrrqotu.exe	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe
File opened for modification	C:\Windows\rlypekrrqotu.exe	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.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 50 IoCs

Processes:

rlypekrrqotu.exe

pid	process
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe
4636	rlypekrrqotu.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

Processes:

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exerlypekrrqotu.exeWMIC.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe
Token: SeDebugPrivilege	4636	rlypekrrqotu.exe
Token: SeIncreaseQuotaPrivilege	4300	WMIC.exe
Token: SeSecurityPrivilege	4300	WMIC.exe
Token: SeTakeOwnershipPrivilege	4300	WMIC.exe
Token: SeLoadDriverPrivilege	4300	WMIC.exe
Token: SeSystemProfilePrivilege	4300	WMIC.exe
Token: SeSystemtimePrivilege	4300	WMIC.exe
Token: SeProfSingleProcessPrivilege	4300	WMIC.exe
Token: SeIncBasePriorityPrivilege	4300	WMIC.exe
Token: SeCreatePagefilePrivilege	4300	WMIC.exe
Token: SeBackupPrivilege	4300	WMIC.exe
Token: SeRestorePrivilege	4300	WMIC.exe
Token: SeShutdownPrivilege	4300	WMIC.exe
Token: SeDebugPrivilege	4300	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4300	WMIC.exe
Token: SeRemoteShutdownPrivilege	4300	WMIC.exe
Token: SeUndockPrivilege	4300	WMIC.exe
Token: SeManageVolumePrivilege	4300	WMIC.exe
Token: 33	4300	WMIC.exe
Token: 34	4300	WMIC.exe
Token: 35	4300	WMIC.exe
Token: 36	4300	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4300	WMIC.exe
Token: SeSecurityPrivilege	4300	WMIC.exe
Token: SeTakeOwnershipPrivilege	4300	WMIC.exe
Token: SeLoadDriverPrivilege	4300	WMIC.exe
Token: SeSystemProfilePrivilege	4300	WMIC.exe
Token: SeSystemtimePrivilege	4300	WMIC.exe
Token: SeProfSingleProcessPrivilege	4300	WMIC.exe
Token: SeIncBasePriorityPrivilege	4300	WMIC.exe
Token: SeCreatePagefilePrivilege	4300	WMIC.exe
Token: SeBackupPrivilege	4300	WMIC.exe
Token: SeRestorePrivilege	4300	WMIC.exe
Token: SeShutdownPrivilege	4300	WMIC.exe
Token: SeDebugPrivilege	4300	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4300	WMIC.exe
Token: SeRemoteShutdownPrivilege	4300	WMIC.exe
Token: SeUndockPrivilege	4300	WMIC.exe
Token: SeManageVolumePrivilege	4300	WMIC.exe
Token: 33	4300	WMIC.exe
Token: 34	4300	WMIC.exe
Token: 35	4300	WMIC.exe
Token: 36	4300	WMIC.exe
Token: SeBackupPrivilege	228	vssvc.exe
Token: SeRestorePrivilege	228	vssvc.exe
Token: SeAuditPrivilege	228	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exerlypekrrqotu.exe

description	pid	process	target process
PID 2252 wrote to memory of 4636	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	rlypekrrqotu.exe
PID 2252 wrote to memory of 4636	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	rlypekrrqotu.exe
PID 2252 wrote to memory of 4636	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	rlypekrrqotu.exe
PID 2252 wrote to memory of 1772	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	cmd.exe
PID 2252 wrote to memory of 1772	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	cmd.exe
PID 2252 wrote to memory of 1772	2252	aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe	cmd.exe
PID 4636 wrote to memory of 4300	4636	rlypekrrqotu.exe	WMIC.exe
PID 4636 wrote to memory of 4300	4636	rlypekrrqotu.exe	WMIC.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

rlypekrrqotu.exe

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

C:\Users\Admin\AppData\Local\Temp\aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe
"C:\Users\Admin\AppData\Local\Temp\aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\rlypekrrqotu.exe
  C:\Windows\rlypekrrqotu.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:4636
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\AA516E~1.EXE
  2⤵
  PID:1772

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:228

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\rlypekrrqotu.exe

Filesize
428KB

MD5
0b23d4fb182a5b4a11cffabe59346ebb

SHA1
060c3991d04379ab5e2d7ba3e743c37c08f33efc

SHA256
aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7

SHA512
ea82eb72a954c718a36acde103340a2023f450d7680e866bc9dcac8ad544f880ecb0616264b8e855fb72cb562012c46816c7521446d47df4d4fd27953c50ae4b

Download Submit
C:\Windows\rlypekrrqotu.exe

Filesize
428KB

MD5
0b23d4fb182a5b4a11cffabe59346ebb

SHA1
060c3991d04379ab5e2d7ba3e743c37c08f33efc

SHA256
aa516e398bda03faafdb7b129d8ab9261b64c26c9b9e4acc0aa7eb2899f1beb7

SHA512
ea82eb72a954c718a36acde103340a2023f450d7680e866bc9dcac8ad544f880ecb0616264b8e855fb72cb562012c46816c7521446d47df4d4fd27953c50ae4b

Download Submit
memory/1772-140-0x0000000000000000-mapping.dmp

Download
memory/2252-132-0x0000000000400000-0x00000000004AE000-memory.dmp

Filesize
696KB

Download
memory/2252-136-0x0000000002180000-0x0000000002205000-memory.dmp

Filesize
532KB

Download
memory/4300-146-0x0000000000000000-mapping.dmp

Download
memory/4636-137-0x0000000000000000-mapping.dmp

Download
memory/4636-145-0x00000000021B0000-0x0000000002235000-memory.dmp

Filesize
532KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads