a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-en-20211208
submitted
15-12-2021 06:21

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General

Target

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
Size

25KB
MD5

a22ca06bb3a58d4ca2bca856434b96f3
SHA1

4a12e232b2442746334ef5d94fab4c3577b33de7
SHA256

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85
SHA512

e0f22e150d52b22a2033a4e9a8f99f2d17a2eb496d039b11ef217a94c711f51db4f5b07d941335ace99c10d824fc547494b2b3ee2458c8239853d4780fe283c1

Score

10^/10

ransomware

Malware Config

Extracted

Path

C:\Help Restore Your Files.txt

Ransom Note

All of your files have been encrypted! The harddisks of your computer have been encrypted with an military grade encryption algorithm. There is no way to restore your data without a special software Doydo. To purchase your key and restore your data, please follow these three easy: 1. The price for the software is $300 dollars USD. Payment can be made in Bitcoin only. 2. Bitcoin Address: 3JG36KY6abZTnHBdQCon1hheC3Wa2bdyqs 3. Once paid, send proof of payment: Email: recover300dollars@gmail.com You receive your key in 20 minutes: To make sure we have the decryptor and it works, you can send an email: recover300dollars@gmail.com and decrypt a file for free. But this file shouldn't be of any value! Warning: do not turn off your pc! If you abort this process, you could destroy all of your data! Please ensure that your power cable is plugged in!

Emails

recover300dollars@gmail.com

Wallets

3JG36KY6abZTnHBdQCon1hheC3Wa2bdyqs

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 8 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\ResumeApprove.png => C:\Users\Admin\Pictures\ResumeApprove.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeApprove.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File renamed	C:\Users\Admin\Pictures\ResumeDisable.png => C:\Users\Admin\Pictures\ResumeDisable.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeDisable.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File renamed	C:\Users\Admin\Pictures\SaveSplit.png => C:\Users\Admin\Pictures\SaveSplit.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened for modification	C:\Users\Admin\Pictures\SaveSplit.png.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File renamed	C:\Users\Admin\Pictures\SkipDeny.crw => C:\Users\Admin\Pictures\SkipDeny.crw.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened for modification	C:\Users\Admin\Pictures\SkipDeny.crw.doydo	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

description	ioc	process
File opened (read-only)	\??\Q:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\R:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\O:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\S:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\J:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\L:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\V:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\B:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\W:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\T:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\G:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\Y:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\I:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\P:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\A:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\F:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\H:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\K:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\E:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\U:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\Z:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\X:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\N:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
File opened (read-only)	\??\M:	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

844 vssadmin.exe
1528 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

pid process

1612 63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 816 vssvc.exe
Token: SeRestorePrivilege 816 vssvc.exe
Token: SeAuditPrivilege 816 vssvc.exe

pid	process
844	vssadmin.exe
1528	vssadmin.exe

pid	process
1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe

description	pid	process
Token: SeBackupPrivilege	816	vssvc.exe
Token: SeRestorePrivilege	816	vssvc.exe
Token: SeAuditPrivilege	816	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.execmd.execmd.exe

description	pid	process	target process
PID 1612 wrote to memory of 1748	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1748	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1748	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1748	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1748 wrote to memory of 844	1748	cmd.exe	vssadmin.exe
PID 1748 wrote to memory of 844	1748	cmd.exe	vssadmin.exe
PID 1748 wrote to memory of 844	1748	cmd.exe	vssadmin.exe
PID 1612 wrote to memory of 1084	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1084	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1084	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1612 wrote to memory of 1084	1612	63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe	cmd.exe
PID 1084 wrote to memory of 1528	1084	cmd.exe	vssadmin.exe
PID 1084 wrote to memory of 1528	1084	cmd.exe	vssadmin.exe
PID 1084 wrote to memory of 1528	1084	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe
"C:\Users\Admin\AppData\Local\Temp\63b6a51be736d253e26011f19bd16006d7093839b345363ef238eafcfe5e7e85.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:844

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1084

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1528

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:816

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

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Downloads

memory/844-57-0x0000000000000000-mapping.dmp

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memory/1084-58-0x0000000000000000-mapping.dmp

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memory/1528-59-0x0000000000000000-mapping.dmp

Download
memory/1612-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1748-56-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads