teslacrypt | 323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915

General

Target

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe
Size

424KB
MD5

a2801a0ac7d6204ec19ec708228e5a0b
SHA1

692a926583bcf3aed9fa28678435b6d7921e49ab
SHA256

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915
SHA512

b62f40f4ef79a4538afa609a0e66838339c1e54e3340d917fbf2ac7e59d6b7487b4807a1f18088736963b4030c0f28de8c43b6bfc2ddd7d72235cc3a6ea05190
SSDEEP

6144:tgqUTWoodwYn0vpNnjB6SZk+L6gmo/b7EqAAwp8oXbftChXW3AxfulDGgB:DUTRoKN7nt6S2+LN/AqgpZblCJxfS6

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2891029575-1462575-1165213807-1000\_RECoVERY_+hvmrl.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/512376AAEA8267 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/512376AAEA8267 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/512376AAEA8267 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/512376AAEA8267 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/512376AAEA8267 http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/512376AAEA8267 http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/512376AAEA8267 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/512376AAEA8267

URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/512376AAEA8267

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/512376AAEA8267

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/512376AAEA8267

http://xlowfznrg4wf7dli.ONION/512376AAEA8267

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:

oiftsttecacq.exe

pid process

4928 oiftsttecacq.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:

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exeoiftsttecacq.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	oiftsttecacq.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

oiftsttecacq.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	oiftsttecacq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feuufcecornc = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\oiftsttecacq.exe\""	oiftsttecacq.exe

Drops file in Windows directory 2 IoCs

Processes:

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe

description	ioc	process
File created	C:\Windows\oiftsttecacq.exe	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe
File opened for modification	C:\Windows\oiftsttecacq.exe	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.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 16 IoCs

Processes:

oiftsttecacq.exe

pid	process
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe
4928	oiftsttecacq.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

Processes:

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exeoiftsttecacq.exeWMIC.exe

description	pid	process
Token: SeDebugPrivilege	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe
Token: SeDebugPrivilege	4928	oiftsttecacq.exe
Token: SeIncreaseQuotaPrivilege	1896	WMIC.exe
Token: SeSecurityPrivilege	1896	WMIC.exe
Token: SeTakeOwnershipPrivilege	1896	WMIC.exe
Token: SeLoadDriverPrivilege	1896	WMIC.exe
Token: SeSystemProfilePrivilege	1896	WMIC.exe
Token: SeSystemtimePrivilege	1896	WMIC.exe
Token: SeProfSingleProcessPrivilege	1896	WMIC.exe
Token: SeIncBasePriorityPrivilege	1896	WMIC.exe
Token: SeCreatePagefilePrivilege	1896	WMIC.exe
Token: SeBackupPrivilege	1896	WMIC.exe
Token: SeRestorePrivilege	1896	WMIC.exe
Token: SeShutdownPrivilege	1896	WMIC.exe
Token: SeDebugPrivilege	1896	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1896	WMIC.exe
Token: SeRemoteShutdownPrivilege	1896	WMIC.exe
Token: SeUndockPrivilege	1896	WMIC.exe
Token: SeManageVolumePrivilege	1896	WMIC.exe
Token: 33	1896	WMIC.exe
Token: 34	1896	WMIC.exe
Token: 35	1896	WMIC.exe
Token: 36	1896	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1896	WMIC.exe
Token: SeSecurityPrivilege	1896	WMIC.exe
Token: SeTakeOwnershipPrivilege	1896	WMIC.exe
Token: SeLoadDriverPrivilege	1896	WMIC.exe
Token: SeSystemProfilePrivilege	1896	WMIC.exe
Token: SeSystemtimePrivilege	1896	WMIC.exe
Token: SeProfSingleProcessPrivilege	1896	WMIC.exe
Token: SeIncBasePriorityPrivilege	1896	WMIC.exe
Token: SeCreatePagefilePrivilege	1896	WMIC.exe
Token: SeBackupPrivilege	1896	WMIC.exe
Token: SeRestorePrivilege	1896	WMIC.exe
Token: SeShutdownPrivilege	1896	WMIC.exe
Token: SeDebugPrivilege	1896	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1896	WMIC.exe
Token: SeRemoteShutdownPrivilege	1896	WMIC.exe
Token: SeUndockPrivilege	1896	WMIC.exe
Token: SeManageVolumePrivilege	1896	WMIC.exe
Token: 33	1896	WMIC.exe
Token: 34	1896	WMIC.exe
Token: 35	1896	WMIC.exe
Token: 36	1896	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exeoiftsttecacq.exe

description	pid	process	target process
PID 4636 wrote to memory of 4928	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	oiftsttecacq.exe
PID 4636 wrote to memory of 4928	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	oiftsttecacq.exe
PID 4636 wrote to memory of 4928	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	oiftsttecacq.exe
PID 4636 wrote to memory of 4388	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	cmd.exe
PID 4636 wrote to memory of 4388	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	cmd.exe
PID 4636 wrote to memory of 4388	4636	323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe	cmd.exe
PID 4928 wrote to memory of 1896	4928	oiftsttecacq.exe	WMIC.exe
PID 4928 wrote to memory of 1896	4928	oiftsttecacq.exe	WMIC.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

oiftsttecacq.exe

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

C:\Users\Admin\AppData\Local\Temp\323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe
"C:\Users\Admin\AppData\Local\Temp\323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\oiftsttecacq.exe
  C:\Windows\oiftsttecacq.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4928
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\323B85~1.EXE
  2⤵
  PID:4388

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
PID:988

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\oiftsttecacq.exe

Filesize
424KB

MD5
a2801a0ac7d6204ec19ec708228e5a0b

SHA1
692a926583bcf3aed9fa28678435b6d7921e49ab

SHA256
323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915

SHA512
b62f40f4ef79a4538afa609a0e66838339c1e54e3340d917fbf2ac7e59d6b7487b4807a1f18088736963b4030c0f28de8c43b6bfc2ddd7d72235cc3a6ea05190

Download Submit
C:\Windows\oiftsttecacq.exe

Filesize
424KB

MD5
a2801a0ac7d6204ec19ec708228e5a0b

SHA1
692a926583bcf3aed9fa28678435b6d7921e49ab

SHA256
323b8534996ed1f42e206831aa00b77c91f20e428263b1534a1db3c2abab4915

SHA512
b62f40f4ef79a4538afa609a0e66838339c1e54e3340d917fbf2ac7e59d6b7487b4807a1f18088736963b4030c0f28de8c43b6bfc2ddd7d72235cc3a6ea05190

Download Submit
memory/1896-146-0x0000000000000000-mapping.dmp

Download
memory/4388-145-0x0000000000000000-mapping.dmp

Download
memory/4636-132-0x0000000000400000-0x00000000004AE000-memory.dmp

Filesize
696KB

Download
memory/4636-136-0x00000000022B0000-0x0000000002335000-memory.dmp

Filesize
532KB

Download
memory/4928-137-0x0000000000000000-mapping.dmp

Download
memory/4928-144-0x0000000002110000-0x0000000002195000-memory.dmp

Filesize
532KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads