teslacrypt | 07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6

Analysis

max time kernel
11s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
22-10-2022 02:14

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General

Target

07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe
Size

424KB
MD5

ba9fc3bdca857bc4e0f9a4803c1c0dee
SHA1

605bfe3a0212da3231e0c4a74a4ac2e07bf3f6d2
SHA256

07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6
SHA512

687c453a2a2111fdd2da657f3135dc2eeb7b665a64f68bbb51f7137c3d2f1309b94ce068d71abecaa645c66ab846834c273fefa3f27bde5530480f308e68cae3
SSDEEP

6144:Cg696TSBF7DRiH9Pyn65fNkKJXXj8p8HmHorKspEJihalpr70PoXbftChXW3Axfg:i96kNqmMNTFQaEorEJ4E5blCJxfS6

Score

10^/10

teslacrypt persistence ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-929662420-1054238289-2961194603-1000\_RECoVERY_+wrolr.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/6618CE45086559F 2. http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6618CE45086559F 3. http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6618CE45086559F 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/6618CE45086559F 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/6618CE45086559F http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6618CE45086559F http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6618CE45086559F *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/6618CE45086559F

URLs

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/6618CE45086559F

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/6618CE45086559F

http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/6618CE45086559F

http://xlowfznrg4wf7dli.ONION/6618CE45086559F

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

pid	Process
536	asivmilceowb.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	asivmilceowb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	asivmilceowb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pcxxmghudttr = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\asivmilceowb.exe\""	asivmilceowb.exe

Drops file in Program Files directory 21 IoCs

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

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\asivmilceowb.exe	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe
File opened for modification	C:\Windows\asivmilceowb.exe	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.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 30 IoCs

pid	Process
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe
536	asivmilceowb.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe
Token: SeDebugPrivilege	536	asivmilceowb.exe
Token: SeIncreaseQuotaPrivilege	1860	WMIC.exe
Token: SeSecurityPrivilege	1860	WMIC.exe
Token: SeTakeOwnershipPrivilege	1860	WMIC.exe
Token: SeLoadDriverPrivilege	1860	WMIC.exe
Token: SeSystemProfilePrivilege	1860	WMIC.exe
Token: SeSystemtimePrivilege	1860	WMIC.exe
Token: SeProfSingleProcessPrivilege	1860	WMIC.exe
Token: SeIncBasePriorityPrivilege	1860	WMIC.exe
Token: SeCreatePagefilePrivilege	1860	WMIC.exe
Token: SeBackupPrivilege	1860	WMIC.exe
Token: SeRestorePrivilege	1860	WMIC.exe
Token: SeShutdownPrivilege	1860	WMIC.exe
Token: SeDebugPrivilege	1860	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1860	WMIC.exe
Token: SeRemoteShutdownPrivilege	1860	WMIC.exe
Token: SeUndockPrivilege	1860	WMIC.exe
Token: SeManageVolumePrivilege	1860	WMIC.exe
Token: 33	1860	WMIC.exe
Token: 34	1860	WMIC.exe
Token: 35	1860	WMIC.exe
Token: 36	1860	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1860	WMIC.exe
Token: SeSecurityPrivilege	1860	WMIC.exe
Token: SeTakeOwnershipPrivilege	1860	WMIC.exe
Token: SeLoadDriverPrivilege	1860	WMIC.exe
Token: SeSystemProfilePrivilege	1860	WMIC.exe
Token: SeSystemtimePrivilege	1860	WMIC.exe
Token: SeProfSingleProcessPrivilege	1860	WMIC.exe
Token: SeIncBasePriorityPrivilege	1860	WMIC.exe
Token: SeCreatePagefilePrivilege	1860	WMIC.exe
Token: SeBackupPrivilege	1860	WMIC.exe
Token: SeRestorePrivilege	1860	WMIC.exe
Token: SeShutdownPrivilege	1860	WMIC.exe
Token: SeDebugPrivilege	1860	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1860	WMIC.exe
Token: SeRemoteShutdownPrivilege	1860	WMIC.exe
Token: SeUndockPrivilege	1860	WMIC.exe
Token: SeManageVolumePrivilege	1860	WMIC.exe
Token: 33	1860	WMIC.exe
Token: 34	1860	WMIC.exe
Token: 35	1860	WMIC.exe
Token: 36	1860	WMIC.exe
Token: SeBackupPrivilege	4392	vssvc.exe
Token: SeRestorePrivilege	4392	vssvc.exe
Token: SeAuditPrivilege	4392	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 536	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	84
PID 3368 wrote to memory of 536	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	84
PID 3368 wrote to memory of 536	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	84
PID 3368 wrote to memory of 2232	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	85
PID 3368 wrote to memory of 2232	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	85
PID 3368 wrote to memory of 2232	3368	07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe	85
PID 536 wrote to memory of 1860	536	asivmilceowb.exe	90
PID 536 wrote to memory of 1860	536	asivmilceowb.exe	90

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe
"C:\Users\Admin\AppData\Local\Temp\07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Windows\asivmilceowb.exe
  C:\Windows\asivmilceowb.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:536
- - C:\Windows\System32\wbem\WMIC.exe
    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\07D786~1.EXE
  2⤵
  PID:2232

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4392

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

C:\Windows\asivmilceowb.exe

Filesize
424KB

MD5
ba9fc3bdca857bc4e0f9a4803c1c0dee

SHA1
605bfe3a0212da3231e0c4a74a4ac2e07bf3f6d2

SHA256
07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6

SHA512
687c453a2a2111fdd2da657f3135dc2eeb7b665a64f68bbb51f7137c3d2f1309b94ce068d71abecaa645c66ab846834c273fefa3f27bde5530480f308e68cae3

Download Submit
C:\Windows\asivmilceowb.exe

Filesize
424KB

MD5
ba9fc3bdca857bc4e0f9a4803c1c0dee

SHA1
605bfe3a0212da3231e0c4a74a4ac2e07bf3f6d2

SHA256
07d786c92884ec850f027c69105a9873af40f9b7a791125c7027e93535a8a4a6

SHA512
687c453a2a2111fdd2da657f3135dc2eeb7b665a64f68bbb51f7137c3d2f1309b94ce068d71abecaa645c66ab846834c273fefa3f27bde5530480f308e68cae3

Download Submit
memory/536-146-0x0000000002150000-0x00000000021D5000-memory.dmp

Filesize
532KB

Download
memory/3368-132-0x00000000022B0000-0x0000000002335000-memory.dmp

Filesize
532KB

Download
memory/3368-133-0x0000000000400000-0x00000000004AE000-memory.dmp

Filesize
696KB

Download
memory/3368-141-0x00000000022B0000-0x0000000002335000-memory.dmp

Filesize
532KB

Download