teslacrypt | 39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc

Analysis

max time kernel
187s
max time network
180s
platform
windows7_x64
resource
win7-20220414-en
submitted
25/06/2022, 09:03

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General

Target

39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe
Size

340KB
MD5

6bcc066e2a81f34c7e052895001f44c6
SHA1

6f892ec0287ace1c4c7c86e3945b44de6c9d3ba8
SHA256

39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc
SHA512

b11b924dfda23d28019879acbd790778049f4f711134b0003967408b28532544745d12081a9da538f9ecd84f3791b621d3d9c1b4a62699b22d7c56274a1f9f2c

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\Recovery+lmsfv.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://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/223AC7FFAFCAB4E3 2. http://tes543berda73i48fsdfsd.keratadze.at/223AC7FFAFCAB4E3 3. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/223AC7FFAFCAB4E3 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/223AC7FFAFCAB4E3 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/223AC7FFAFCAB4E3 http://tes543berda73i48fsdfsd.keratadze.at/223AC7FFAFCAB4E3 http://tt54rfdjhb34rfbnknaerg.milerteddy.com/223AC7FFAFCAB4E3 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/223AC7FFAFCAB4E3

URLs

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/223AC7FFAFCAB4E3

http://tes543berda73i48fsdfsd.keratadze.at/223AC7FFAFCAB4E3

http://tt54rfdjhb34rfbnknaerg.milerteddy.com/223AC7FFAFCAB4E3

http://xlowfznrg4wf7dli.ONION/223AC7FFAFCAB4E3

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 2 IoCs

pid	Process
1980	kayabeoyswlm.exe
860	kayabeoyswlm.exe

Deletes itself 1 IoCs

pid	Process
692	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	kayabeoyswlm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\wghhbjomdjtp = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\kayabeoyswlm.exe\""	kayabeoyswlm.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1980 set thread context of 860	1980	kayabeoyswlm.exe	31

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\History.txt	kayabeoyswlm.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\kayabeoyswlm.exe	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe
File opened for modification	C:\Windows\kayabeoyswlm.exe	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.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
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe
860	kayabeoyswlm.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe
Token: SeDebugPrivilege	860	kayabeoyswlm.exe
Token: SeIncreaseQuotaPrivilege	1684	WMIC.exe
Token: SeSecurityPrivilege	1684	WMIC.exe
Token: SeTakeOwnershipPrivilege	1684	WMIC.exe
Token: SeLoadDriverPrivilege	1684	WMIC.exe
Token: SeSystemProfilePrivilege	1684	WMIC.exe
Token: SeSystemtimePrivilege	1684	WMIC.exe
Token: SeProfSingleProcessPrivilege	1684	WMIC.exe
Token: SeIncBasePriorityPrivilege	1684	WMIC.exe
Token: SeCreatePagefilePrivilege	1684	WMIC.exe
Token: SeBackupPrivilege	1684	WMIC.exe
Token: SeRestorePrivilege	1684	WMIC.exe
Token: SeShutdownPrivilege	1684	WMIC.exe
Token: SeDebugPrivilege	1684	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1684	WMIC.exe
Token: SeRemoteShutdownPrivilege	1684	WMIC.exe
Token: SeUndockPrivilege	1684	WMIC.exe
Token: SeManageVolumePrivilege	1684	WMIC.exe
Token: 33	1684	WMIC.exe
Token: 34	1684	WMIC.exe
Token: 35	1684	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1684	WMIC.exe
Token: SeSecurityPrivilege	1684	WMIC.exe
Token: SeTakeOwnershipPrivilege	1684	WMIC.exe
Token: SeLoadDriverPrivilege	1684	WMIC.exe
Token: SeSystemProfilePrivilege	1684	WMIC.exe
Token: SeSystemtimePrivilege	1684	WMIC.exe
Token: SeProfSingleProcessPrivilege	1684	WMIC.exe
Token: SeIncBasePriorityPrivilege	1684	WMIC.exe
Token: SeCreatePagefilePrivilege	1684	WMIC.exe
Token: SeBackupPrivilege	1684	WMIC.exe
Token: SeRestorePrivilege	1684	WMIC.exe
Token: SeShutdownPrivilege	1684	WMIC.exe
Token: SeDebugPrivilege	1684	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1684	WMIC.exe
Token: SeRemoteShutdownPrivilege	1684	WMIC.exe
Token: SeUndockPrivilege	1684	WMIC.exe
Token: SeManageVolumePrivilege	1684	WMIC.exe
Token: 33	1684	WMIC.exe
Token: 34	1684	WMIC.exe
Token: 35	1684	WMIC.exe
Token: SeBackupPrivilege	572	vssvc.exe
Token: SeRestorePrivilege	572	vssvc.exe
Token: SeAuditPrivilege	572	vssvc.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 1324 wrote to memory of 2044	1324	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	27
PID 2044 wrote to memory of 1980	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	28
PID 2044 wrote to memory of 1980	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	28
PID 2044 wrote to memory of 1980	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	28
PID 2044 wrote to memory of 1980	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	28
PID 2044 wrote to memory of 692	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	29
PID 2044 wrote to memory of 692	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	29
PID 2044 wrote to memory of 692	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	29
PID 2044 wrote to memory of 692	2044	39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe	29
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 1980 wrote to memory of 860	1980	kayabeoyswlm.exe	31
PID 860 wrote to memory of 1684	860	kayabeoyswlm.exe	32
PID 860 wrote to memory of 1684	860	kayabeoyswlm.exe	32
PID 860 wrote to memory of 1684	860	kayabeoyswlm.exe	32
PID 860 wrote to memory of 1684	860	kayabeoyswlm.exe	32

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe
"C:\Users\Admin\AppData\Local\Temp\39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Users\Admin\AppData\Local\Temp\39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe
  "C:\Users\Admin\AppData\Local\Temp\39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\kayabeoyswlm.exe
    C:\Windows\kayabeoyswlm.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1980
  - - C:\Windows\kayabeoyswlm.exe
      C:\Windows\kayabeoyswlm.exe
      4⤵
      Executes dropped EXE
      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:860
    - - C:\Windows\System32\wbem\WMIC.exe
        
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1684
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\39A709~1.EXE
    3⤵
    - Deletes itself
    PID:692

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:572

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

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\kayabeoyswlm.exe

Filesize
340KB

MD5
6bcc066e2a81f34c7e052895001f44c6

SHA1
6f892ec0287ace1c4c7c86e3945b44de6c9d3ba8

SHA256
39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc

SHA512
b11b924dfda23d28019879acbd790778049f4f711134b0003967408b28532544745d12081a9da538f9ecd84f3791b621d3d9c1b4a62699b22d7c56274a1f9f2c

Download Submit
C:\Windows\kayabeoyswlm.exe

Filesize
340KB

MD5
6bcc066e2a81f34c7e052895001f44c6

SHA1
6f892ec0287ace1c4c7c86e3945b44de6c9d3ba8

SHA256
39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc

SHA512
b11b924dfda23d28019879acbd790778049f4f711134b0003967408b28532544745d12081a9da538f9ecd84f3791b621d3d9c1b4a62699b22d7c56274a1f9f2c

Download Submit
C:\Windows\kayabeoyswlm.exe

Filesize
340KB

MD5
6bcc066e2a81f34c7e052895001f44c6

SHA1
6f892ec0287ace1c4c7c86e3945b44de6c9d3ba8

SHA256
39a70938288eacf5eab1002150cb06a8299475ad6064fb131aa6e9118c66b4bc

SHA512
b11b924dfda23d28019879acbd790778049f4f711134b0003967408b28532544745d12081a9da538f9ecd84f3791b621d3d9c1b4a62699b22d7c56274a1f9f2c

Download Submit
memory/860-92-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/860-91-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/860-90-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1324-66-0x0000000000300000-0x0000000000303000-memory.dmp

Filesize
12KB

Download
memory/1324-54-0x0000000000300000-0x0000000000303000-memory.dmp

Filesize
12KB

Download
memory/2044-69-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-70-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-68-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/2044-74-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-64-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-62-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-60-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-58-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-56-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2044-55-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download