teslacrypt | 4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68

Analysis

max time kernel
170s
max time network
176s
platform
windows7_x64
resource
win7-20220414-en
submitted
12/07/2022, 07:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe
Size

371KB
MD5

3d1d21040e9d68cbf02e146ad0ad67eb
SHA1

1ba5dc500339977ef248125ccc8f6f66f3cb0f6f
SHA256

4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68
SHA512

bb14db6c812f3acd1777c10ad6fea24b4a3b10975d7f8811355d42bc493bddc3c07aa9129b065b061fe021473c64dc7da940885ba9bd42d59d9b1feefbe86865

Score

10^/10

teslacrypt persistence ransomware suricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2277218442-1199762539-2004043321-1000\_RECoVERY_+fcjay.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://yyre45dbvn2nhbefbmh.begumvelic.at/A65B85DCF3D611E 2. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A65B85DCF3D611E 3. http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A65B85DCF3D611E 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/A65B85DCF3D611E 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://yyre45dbvn2nhbefbmh.begumvelic.at/A65B85DCF3D611E http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A65B85DCF3D611E http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A65B85DCF3D611E *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/A65B85DCF3D611E

URLs

http://yyre45dbvn2nhbefbmh.begumvelic.at/A65B85DCF3D611E

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A65B85DCF3D611E

http://gwe32fdr74bhfsyujb34gfszfv.zatcurr.com/A65B85DCF3D611E

http://xlowfznrg4wf7dli.ONION/A65B85DCF3D611E

Signatures

TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
ransomware teslacrypt
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata
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
1820	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe

Deletes itself 1 IoCs

pid	Process
676	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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run	ouiuoetwvgfq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\kkqnkmtetwuh = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\ouiuoetwvgfq.exe\""	ouiuoetwvgfq.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 1820 set thread context of 832	1820	ouiuoetwvgfq.exe	32

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\ouiuoetwvgfq.exe	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe
File opened for modification	C:\Windows\ouiuoetwvgfq.exe	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.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 60 IoCs

pid	Process
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe
832	ouiuoetwvgfq.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe
Token: SeDebugPrivilege	832	ouiuoetwvgfq.exe
Token: SeIncreaseQuotaPrivilege	2020	WMIC.exe
Token: SeSecurityPrivilege	2020	WMIC.exe
Token: SeTakeOwnershipPrivilege	2020	WMIC.exe
Token: SeLoadDriverPrivilege	2020	WMIC.exe
Token: SeSystemProfilePrivilege	2020	WMIC.exe
Token: SeSystemtimePrivilege	2020	WMIC.exe
Token: SeProfSingleProcessPrivilege	2020	WMIC.exe
Token: SeIncBasePriorityPrivilege	2020	WMIC.exe
Token: SeCreatePagefilePrivilege	2020	WMIC.exe
Token: SeBackupPrivilege	2020	WMIC.exe
Token: SeRestorePrivilege	2020	WMIC.exe
Token: SeShutdownPrivilege	2020	WMIC.exe
Token: SeDebugPrivilege	2020	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2020	WMIC.exe
Token: SeRemoteShutdownPrivilege	2020	WMIC.exe
Token: SeUndockPrivilege	2020	WMIC.exe
Token: SeManageVolumePrivilege	2020	WMIC.exe
Token: 33	2020	WMIC.exe
Token: 34	2020	WMIC.exe
Token: 35	2020	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2020	WMIC.exe
Token: SeSecurityPrivilege	2020	WMIC.exe
Token: SeTakeOwnershipPrivilege	2020	WMIC.exe
Token: SeLoadDriverPrivilege	2020	WMIC.exe
Token: SeSystemProfilePrivilege	2020	WMIC.exe
Token: SeSystemtimePrivilege	2020	WMIC.exe
Token: SeProfSingleProcessPrivilege	2020	WMIC.exe
Token: SeIncBasePriorityPrivilege	2020	WMIC.exe
Token: SeCreatePagefilePrivilege	2020	WMIC.exe
Token: SeBackupPrivilege	2020	WMIC.exe
Token: SeRestorePrivilege	2020	WMIC.exe
Token: SeShutdownPrivilege	2020	WMIC.exe
Token: SeDebugPrivilege	2020	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2020	WMIC.exe
Token: SeRemoteShutdownPrivilege	2020	WMIC.exe
Token: SeUndockPrivilege	2020	WMIC.exe
Token: SeManageVolumePrivilege	2020	WMIC.exe
Token: 33	2020	WMIC.exe
Token: 34	2020	WMIC.exe
Token: 35	2020	WMIC.exe
Token: SeBackupPrivilege	1176	vssvc.exe
Token: SeRestorePrivilege	1176	vssvc.exe
Token: SeAuditPrivilege	1176	vssvc.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 916 wrote to memory of 1256	916	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	28
PID 1256 wrote to memory of 1820	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	29
PID 1256 wrote to memory of 1820	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	29
PID 1256 wrote to memory of 1820	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	29
PID 1256 wrote to memory of 1820	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	29
PID 1256 wrote to memory of 676	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	30
PID 1256 wrote to memory of 676	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	30
PID 1256 wrote to memory of 676	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	30
PID 1256 wrote to memory of 676	1256	4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe	30
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 1820 wrote to memory of 832	1820	ouiuoetwvgfq.exe	32
PID 832 wrote to memory of 2020	832	ouiuoetwvgfq.exe	33
PID 832 wrote to memory of 2020	832	ouiuoetwvgfq.exe	33
PID 832 wrote to memory of 2020	832	ouiuoetwvgfq.exe	33
PID 832 wrote to memory of 2020	832	ouiuoetwvgfq.exe	33

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe
"C:\Users\Admin\AppData\Local\Temp\4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:916
- C:\Users\Admin\AppData\Local\Temp\4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe
  "C:\Users\Admin\AppData\Local\Temp\4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1256
- - C:\Windows\ouiuoetwvgfq.exe
    C:\Windows\ouiuoetwvgfq.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1820
  - - C:\Windows\ouiuoetwvgfq.exe
      C:\Windows\ouiuoetwvgfq.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:832
    - - C:\Windows\System32\wbem\WMIC.exe
        
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2020
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4C1047~1.EXE
    3⤵
    - Deletes itself
    PID:676

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1176

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

Loading Replay Monitor...

Downloads

C:\Windows\ouiuoetwvgfq.exe

Filesize
371KB

MD5
3d1d21040e9d68cbf02e146ad0ad67eb

SHA1
1ba5dc500339977ef248125ccc8f6f66f3cb0f6f

SHA256
4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68

SHA512
bb14db6c812f3acd1777c10ad6fea24b4a3b10975d7f8811355d42bc493bddc3c07aa9129b065b061fe021473c64dc7da940885ba9bd42d59d9b1feefbe86865

Download Submit
C:\Windows\ouiuoetwvgfq.exe

Filesize
371KB

MD5
3d1d21040e9d68cbf02e146ad0ad67eb

SHA1
1ba5dc500339977ef248125ccc8f6f66f3cb0f6f

SHA256
4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68

SHA512
bb14db6c812f3acd1777c10ad6fea24b4a3b10975d7f8811355d42bc493bddc3c07aa9129b065b061fe021473c64dc7da940885ba9bd42d59d9b1feefbe86865

Download Submit
C:\Windows\ouiuoetwvgfq.exe

Filesize
371KB

MD5
3d1d21040e9d68cbf02e146ad0ad67eb

SHA1
1ba5dc500339977ef248125ccc8f6f66f3cb0f6f

SHA256
4c1047afcf72657f290338efac15c4bb109735512edee5556f76307f975c4f68

SHA512
bb14db6c812f3acd1777c10ad6fea24b4a3b10975d7f8811355d42bc493bddc3c07aa9129b065b061fe021473c64dc7da940885ba9bd42d59d9b1feefbe86865

Download Submit
memory/832-92-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/832-91-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/832-90-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/916-54-0x0000000000240000-0x0000000000243000-memory.dmp

Filesize
12KB

Download
memory/916-67-0x0000000000240000-0x0000000000243000-memory.dmp

Filesize
12KB

Download
memory/1256-69-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-70-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-68-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1256-74-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-64-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-62-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-60-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-58-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-56-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1256-55-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download