satancryptor | dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876

General

Target

2019-12-18.exe
Size

1.8MB
MD5

057aad993a3ef50f6b3ca2db37cb928a
SHA1

a57592be641738c86c85308ef68148181249bc0b
SHA256

dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876
SHA512

87c89027d60f80e99c526584fa093620b3f099151170362424ad78f5e4d7184bd9f2d627ec8463ca202127835f435dd4f85bf2b0d9351593c688855f0bbaffbb

Score

10^/10

satancryptor ransomware spyware stealer

Malware Config

Signatures

SatanCryptor
Golang ransomware first seen in early 2020.
ransomware satancryptor
Modifies extensions of user files 1 IoCs
Ransomware generally changes the extension on encrypted files.
ransomware

Processes:

2019-12-18.exe

description ioc process

File opened for modification C:\Users\Admin\Pictures\MountNew.tiff 2019-12-18.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

552 cmd.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\MountNew.tiff	2019-12-18.exe

pid	process
552	cmd.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

2019-12-18.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\TP9I05FL\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\1O80FYZJ\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\GA2W0K9L\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\9BAYTI1Z\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	2019-12-18.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	2019-12-18.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

5 extreme-ip-lookup.com
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.

Processes:

description flow ioc

HTTP User-Agent header 6 Go-http-client/1.1

flow	ioc
5	extreme-ip-lookup.com

description	flow	ioc
HTTP User-Agent header	6	Go-http-client/1.1

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2019-12-18.exe

description	pid	process	target process
PID 1280 wrote to memory of 1544	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 1544	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 1544	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 1544	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 552	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 552	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 552	1280	2019-12-18.exe	cmd.exe
PID 1280 wrote to memory of 552	1280	2019-12-18.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2019-12-18.exe
"C:\Users\Admin\AppData\Local\Temp\2019-12-18.exe"
1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Suspicious use of WriteProcessMemory
PID:1280

C:\Windows\SysWOW64\cmd.exe
cmd /c ver
2⤵
PID:1544

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /C del C:\Users\Admin\AppData\Local\Temp\2019-12-18.exe
2⤵
- Deletes itself
PID:552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/552-55-0x0000000000000000-mapping.dmp

Download
memory/1544-54-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing