teslacrypt | 9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25

General

Target

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe
Size

416KB
MD5

9b81061dbd03ced428fcc2be26261013
SHA1

4a5f76999c7085c1f6f2ec6d0d7b2dadff1441b0
SHA256

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25
SHA512

3d405081f715fa79f79070e55e1e9bda43c6767a23f4cf6016b32f4ac749c1987b09c4f9bb9cda16a4aa4869aa7b4483030b9d56c12b9fbbe818e553dc0094cb
SSDEEP

12288:8bB+H+j4dgHuxxcU6conxGp4GbuolVoOl:81+448cGGp4aVoOl

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+lesqi.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://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/41D165EB50F15F19 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/41D165EB50F15F19 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/41D165EB50F15F19 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/41D165EB50F15F19 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/41D165EB50F15F19 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/41D165EB50F15F19 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/41D165EB50F15F19 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/41D165EB50F15F19

URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/41D165EB50F15F19

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/41D165EB50F15F19

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/41D165EB50F15F19

http://xlowfznrg4wf7dli.ONION/41D165EB50F15F19

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:

csllhxacsivm.exe

pid process

552 csllhxacsivm.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:

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.execsllhxacsivm.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	csllhxacsivm.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

csllhxacsivm.exe

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

Drops file in Program Files directory 12 IoCs

Processes:

csllhxacsivm.exe

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

Drops file in Windows directory 2 IoCs

Processes:

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe

description	ioc	process
File created	C:\Windows\csllhxacsivm.exe	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe
File opened for modification	C:\Windows\csllhxacsivm.exe	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.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 32 IoCs

Processes:

csllhxacsivm.exe

pid	process
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe
552	csllhxacsivm.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

Processes:

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.execsllhxacsivm.exeWMIC.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe
Token: SeDebugPrivilege	552	csllhxacsivm.exe
Token: SeIncreaseQuotaPrivilege	1840	WMIC.exe
Token: SeSecurityPrivilege	1840	WMIC.exe
Token: SeTakeOwnershipPrivilege	1840	WMIC.exe
Token: SeLoadDriverPrivilege	1840	WMIC.exe
Token: SeSystemProfilePrivilege	1840	WMIC.exe
Token: SeSystemtimePrivilege	1840	WMIC.exe
Token: SeProfSingleProcessPrivilege	1840	WMIC.exe
Token: SeIncBasePriorityPrivilege	1840	WMIC.exe
Token: SeCreatePagefilePrivilege	1840	WMIC.exe
Token: SeBackupPrivilege	1840	WMIC.exe
Token: SeRestorePrivilege	1840	WMIC.exe
Token: SeShutdownPrivilege	1840	WMIC.exe
Token: SeDebugPrivilege	1840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1840	WMIC.exe
Token: SeRemoteShutdownPrivilege	1840	WMIC.exe
Token: SeUndockPrivilege	1840	WMIC.exe
Token: SeManageVolumePrivilege	1840	WMIC.exe
Token: 33	1840	WMIC.exe
Token: 34	1840	WMIC.exe
Token: 35	1840	WMIC.exe
Token: 36	1840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1840	WMIC.exe
Token: SeSecurityPrivilege	1840	WMIC.exe
Token: SeTakeOwnershipPrivilege	1840	WMIC.exe
Token: SeLoadDriverPrivilege	1840	WMIC.exe
Token: SeSystemProfilePrivilege	1840	WMIC.exe
Token: SeSystemtimePrivilege	1840	WMIC.exe
Token: SeProfSingleProcessPrivilege	1840	WMIC.exe
Token: SeIncBasePriorityPrivilege	1840	WMIC.exe
Token: SeCreatePagefilePrivilege	1840	WMIC.exe
Token: SeBackupPrivilege	1840	WMIC.exe
Token: SeRestorePrivilege	1840	WMIC.exe
Token: SeShutdownPrivilege	1840	WMIC.exe
Token: SeDebugPrivilege	1840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1840	WMIC.exe
Token: SeRemoteShutdownPrivilege	1840	WMIC.exe
Token: SeUndockPrivilege	1840	WMIC.exe
Token: SeManageVolumePrivilege	1840	WMIC.exe
Token: 33	1840	WMIC.exe
Token: 34	1840	WMIC.exe
Token: 35	1840	WMIC.exe
Token: 36	1840	WMIC.exe
Token: SeBackupPrivilege	408	vssvc.exe
Token: SeRestorePrivilege	408	vssvc.exe
Token: SeAuditPrivilege	408	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.execsllhxacsivm.exe

description	pid	process	target process
PID 1716 wrote to memory of 552	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	csllhxacsivm.exe
PID 1716 wrote to memory of 552	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	csllhxacsivm.exe
PID 1716 wrote to memory of 552	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	csllhxacsivm.exe
PID 1716 wrote to memory of 2232	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	cmd.exe
PID 1716 wrote to memory of 2232	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	cmd.exe
PID 1716 wrote to memory of 2232	1716	9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe	cmd.exe
PID 552 wrote to memory of 1840	552	csllhxacsivm.exe	WMIC.exe
PID 552 wrote to memory of 1840	552	csllhxacsivm.exe	WMIC.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

csllhxacsivm.exe

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

C:\Users\Admin\AppData\Local\Temp\9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe
"C:\Users\Admin\AppData\Local\Temp\9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\csllhxacsivm.exe
  C:\Windows\csllhxacsivm.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:552
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\9CA681~1.EXE
  2⤵
  PID:2232

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:408

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\csllhxacsivm.exe

Filesize
416KB

MD5
9b81061dbd03ced428fcc2be26261013

SHA1
4a5f76999c7085c1f6f2ec6d0d7b2dadff1441b0

SHA256
9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25

SHA512
3d405081f715fa79f79070e55e1e9bda43c6767a23f4cf6016b32f4ac749c1987b09c4f9bb9cda16a4aa4869aa7b4483030b9d56c12b9fbbe818e553dc0094cb

Download Submit
C:\Windows\csllhxacsivm.exe

Filesize
416KB

MD5
9b81061dbd03ced428fcc2be26261013

SHA1
4a5f76999c7085c1f6f2ec6d0d7b2dadff1441b0

SHA256
9ca68197d8f08ab94d253ce4036e9b307af5ae1ffef0378f6cc205fb1e7f4d25

SHA512
3d405081f715fa79f79070e55e1e9bda43c6767a23f4cf6016b32f4ac749c1987b09c4f9bb9cda16a4aa4869aa7b4483030b9d56c12b9fbbe818e553dc0094cb

Download Submit
memory/552-137-0x0000000000000000-mapping.dmp

Download
memory/552-146-0x0000000002120000-0x00000000021A4000-memory.dmp

Filesize
528KB

Download
memory/1716-132-0x00000000022E0000-0x0000000002364000-memory.dmp

Filesize
528KB

Download
memory/1716-133-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1716-141-0x00000000022E0000-0x0000000002364000-memory.dmp

Filesize
528KB

Download
memory/1840-147-0x0000000000000000-mapping.dmp

Download
memory/2232-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads