satancryptor | dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876

General

Target

dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
Size

1.8MB
MD5

057aad993a3ef50f6b3ca2db37cb928a
SHA1

a57592be641738c86c85308ef68148181249bc0b
SHA256

dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876
SHA512

87c89027d60f80e99c526584fa093620b3f099151170362424ad78f5e4d7184bd9f2d627ec8463ca202127835f435dd4f85bf2b0d9351593c688855f0bbaffbb
SSDEEP

49152:BY/3BNLViG5jQWArXncSxhBfV7xLE1t+XgWJz5qtAj6R:BwgG5MWMX7h8+Uw

Score

10^/10

satancryptor zebrocy backdoor ransomware spyware stealer trojan upx

Malware Config

Extracted

Family

zebrocy

C2

Windows XP Professional x64 Edition

Extracted

Path

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\# SATAN CRYPTOR #.hta

Ransom Note

<html> <head> <title>SATAN CRYPTOR</title> <HTA:APPLICATION ID="" APPLICATIONNAME="" BORDER="DIALOG" MAXIMIZEBUTTON="NO" SCROLLFLAT="YES" CAPTION="YES" SELECTION="NO" INNERBORDER="NO" ICON="" SCROLL="NO" SHOWINTASKBAR="YES" SINGLEINSTANCE="YES" SYSMENU="YES" WINDOWSTATE="NORMAL" /> </head> <script language=javascript> var winWidth = 800; var winHeight = 600; window.resizeTo(winWidth, winHeight); window.moveTo(screen.width/2-winWidth/2, screen.height/2-winHeight/2); </script> <body bgcolor=buttonface text=buttontext style="font: 10pt 'Tahoma'"> <div style="font-weight:bold; font:16pt; text-align: center" id="Tittle">Attention!</div> <br> <div style="padding:15px" id="SubTittle"> Your documents, photos, databases and other important files have been encrypted cryptographically strong, without the cipher key recovery is impossible! <br> <br> To decrypt your files you need to buy the special software - <strong>SATAN DECRYPTOR</strong> and your <strong>Private Decryption Key</strong>. <br> <br> Using another tools could corrupt your files, in case of using third party software we dont give guarantees that full recovery is possible so use it on your own risk. <br> <br> If you want to restore files, write us to the our e-mail: <strong>[email protected]</strong> <br> <br> Please write your <strong>Personal Identification Code</strong> in body of your message. <br> <br> Also attach to email 3 encrypted files for free decryption test. (each file have to be less than 1 MB size and not have valuable content) <br> <br> It is in your interest to respond as soon as possible to ensure the restoration of your files! <br> <br> Your <strong>Personal Identification Code</strong>: </div> <center> <textarea style="overflow:auto; font:10pt 'Tahoma'" name="TextArea" rows=10 cols=120 readonly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textarea> </center> </body>

Emails

<strong>[email protected]</strong>

Signatures

SatanCryptor
Golang ransomware first seen in early 2020.
ransomware satancryptor
Zebrocy
Zebrocy is a backdoor created by Sofacy threat group and has multiple variants developed in different languages.
trojan backdoor zebrocy

Zebrocy Go Variant 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2996-0-0x0000000000400000-0x00000000008D5000-memory.dmp	Zebrocy
behavioral1/memory/2996-3050-0x0000000000400000-0x00000000008D5000-memory.dmp	Zebrocy
behavioral1/memory/2996-3051-0x0000000000400000-0x00000000008D5000-memory.dmp	Zebrocy
behavioral1/memory/2996-3052-0x0000000000400000-0x00000000008D5000-memory.dmp	Zebrocy

UPX dump on OEP (original entry point) 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2996-0-0x0000000000400000-0x00000000008D5000-memory.dmp	UPX
behavioral1/memory/2996-3050-0x0000000000400000-0x00000000008D5000-memory.dmp	UPX
behavioral1/memory/2996-3051-0x0000000000400000-0x00000000008D5000-memory.dmp	UPX
behavioral1/memory/2996-3052-0x0000000000400000-0x00000000008D5000-memory.dmp	UPX

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

3000 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
T1552.001

pid	process
3000	cmd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2996-0-0x0000000000400000-0x00000000008D5000-memory.dmp	upx
behavioral1/memory/2996-3050-0x0000000000400000-0x00000000008D5000-memory.dmp	upx
behavioral1/memory/2996-3051-0x0000000000400000-0x00000000008D5000-memory.dmp	upx
behavioral1/memory/2996-3052-0x0000000000400000-0x00000000008D5000-memory.dmp	upx

Drops desktop.ini file(s) 34 IoCs

Processes:

dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\0U93YK0N\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\FW0P2MZH\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BP3UABCB\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\27PKR52P\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.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

9 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 10 Go-http-client/1.1

flow	ioc
9	extreme-ip-lookup.com

description	flow	ioc
HTTP User-Agent header	10	Go-http-client/1.1

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe

description	pid	process	target process
PID 2996 wrote to memory of 1952	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 1952	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 1952	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 1952	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 3000	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 3000	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 3000	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe
PID 2996 wrote to memory of 3000	2996	dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
"C:\Users\Admin\AppData\Local\Temp\dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe"
1⤵
- Drops desktop.ini file(s)
- Suspicious use of WriteProcessMemory
PID:2996

C:\Windows\SysWOW64\cmd.exe
cmd /c ver
2⤵
PID:1952

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /C del C:\Users\Admin\AppData\Local\Temp\dd286a4d79d0f4c2b906073c7f46680252ca09c1c39b0dc12c92097c56662876.exe
2⤵
- Deletes itself
PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\# SATAN CRYPTOR #.hta
Filesize
4KB

MD5
a6908427c272b19c7f535f705d2180c1

SHA1
3f213382f660f0b9532a41b9116cc7c4cf6d8179

SHA256
ba897a2173471aace9339918d24e9290abe94650143d6a46e7877a4a00a12daa

SHA512
aff3b3c1e9cb0eb16e740db74567304c7012dcc890a25e93814feb9feb8393098bbe8c672e472b520dfdc1e76ef034dc191d6b3aa97706f270dc329562a96b24

Download Submit
memory/2996-0-0x0000000000400000-0x00000000008D5000-memory.dmp

Filesize
4.8MB

Download
memory/2996-3050-0x0000000000400000-0x00000000008D5000-memory.dmp

Filesize
4.8MB

Download
memory/2996-3051-0x0000000000400000-0x00000000008D5000-memory.dmp

Filesize
4.8MB

Download
memory/2996-3052-0x0000000000400000-0x00000000008D5000-memory.dmp

Filesize
4.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads