Analysis
- max time kernel
162s - max time network
166s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
13/02/2024, 05:15
General
- Target FoxRansomware/0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe
- Size 1.2MB
- Sample240213-fxzrcaff73
- SHA256 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65
Score
10/10
Malware Config
Extracted
Language
-
ps1
Deobfuscated
Source
URLs
-
ps1.dropper
http://myexternalip.com/raw
Extracted
Path
-
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\eg7x8yxg.default-release\storage\#ANN_README#.rtf
Ransom Note
- {\rtf1\ansi\ansicpg1251\deff0\nouicompat\deflang1049{\fonttbl{\f0\fnil\fcharset0 Calibri;}{\f1\fnil\fcharset204 Calibri;}} {\colortbl ;\red255\green0\blue0;\red0\green77\blue187;\red0\green176\blue80;\red0\green0\blue255;\red255\green255\blue255;} {\*\generator Riched20 10.0.15063}\viewkind4\uc1 \pard\ri-500\sa200\sl240\slmult1\qc\tx8804\ul\b\f0\fs28\lang1033 HOW TO RECOVER YOUR FILES INSTRUCTION\ulnone\f1\lang1049\par \pard\ri-74\sl240\slmult1\tx8378\cf1\f0\fs24\lang1033 ATENTION!!!\par \cf0\b0 We are realy sorry to inform you that \b ALL YOUR FILES WERE ENCRYPTED \par \b0 by our automatic software. It became possible because of bad server security. \par \cf1\b ATENTION!!!\par \cf0\b0 Please don't worry, we can help you to \b RESTORE\b0 your server to original\par state and decrypt all your files quickly and safely!\par \b\par \cf2 INFORMATION!!!\par \cf0\b0 Files are not broken!!!\par Files were encrypted with AES-128+RSA-2048 crypto algorithms.\par There is no way to decrypt your files without unique decryption key and special software. Your unique decryption key is securely stored on our server. For our safety, all information about your server and your decryption key will be automaticaly \b DELETED AFTER 7 DAYS! \b0 You will irrevocably lose all your data!\par \i * Please note that all the attempts to recover your files by yourself or using third party tools will result only in irrevocable loss of your data!\par * Please note that you can recover files only with your unique decryption key, which stored on our side. If you will use the help of third parties, you will only add a middleman.\f1\lang1049\par \i0\f0\lang1033\par \cf3\b HOW TO RECOVER FILES???\par \cf0\b0 Please write us to the e-mail \i (write on English or use professional translator)\i0 :\par \pard\sl240\slmult1\b\fs28 [email protected]\par [email protected]\par [email protected]\cf1\fs24\par You have to send your message on each of our 3 emails\f1\lang1049 \f0\lang1033 due to the fact that the message may not reach their intended recipient for a variety of reasons!\fs28\par \pard\ri-74\sl240\slmult1\tx8378\cf0\b0\fs24 \par In subject line write your personal ID:\par \b\fs28 302553D079DB7CED\par \b0\fs24 We recommed you to attach 3 encrypted files to your message. We will demonstrate that we can recover your files. \f1\lang1049\par \i * \f0\lang1033 \f1\lang1049 \f0\lang1033 Please note that files must not contain any valuable information and their total size must be less than 5Mb. \par \i0\par \cf1\b OUR ADVICE!!!\par \cf0\b0 Please be sure that we will find common languge. We will restore all the data and give you recommedations how to configure the protection of your server.\par \ul\b\par We will definitely reach an agreement ;) !!!\b0\par \ulnone\par \fs20 \par \par \par \par \par \par \par \pard\ri-74\sl240\slmult1\qc\tx8378\b\fs24 ALTERNATIVE COMMUNICATION\par \b0\fs20\par \pard\ri-74\sl240\slmult1\tx8378 \f1\lang1049 If y\'eeu did n\'eet r\'e5c\'e5iv\'e5 th\'e5 \'e0nsw\'e5r fr\'eem th\'e5 \'e0f\'eer\'e5cit\'e5d \'e5m\'e0il\f0\lang1033 s\f1\lang1049 f\'eer m\'eer\'e5 th\f0\lang1033 e\f1\lang1049 n \f0\lang1033 24\f1\lang1049 h\f0\lang1033 o\f1\lang1049 urs\f0\lang1033 please s\f1\lang1049\'e5\f0\lang1033 nd us Bitm\f1\lang1049\'e5\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 s fr\f1\lang1049\'ee\f0\lang1033 m \f1\lang1049\'e0\f0\lang1033 w\f1\lang1049\'e5\f0\lang1033 b br\f1\lang1049\'ee\f0\lang1033 ws\f1\lang1049\'e5\f0\lang1033 r thr\f1\lang1049\'ee\f0\lang1033 ugh th\f1\lang1049\'e5\f0\lang1033 w\f1\lang1049\'e5\f0\lang1033 bp\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 {{\field{\*\fldinst{HYPERLINK https://bitmsg.me }}{\fldrslt{https://bitmsg.me\ul0\cf0}}}}\f0\fs20 . 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R\f1\lang1049\'e5\f0\lang1033 turn t\f1\lang1049\'ee\f0\lang1033 sit\f1\lang1049\'e5\f0\lang1033 \f1\lang1049\'e0\f0\lang1033 nd \f1\lang1049\'f1\f0\lang1033 lick \f1\lang1049 "\f0\lang1033 L\f1\lang1049\'ee\f0\lang1033 gin\f1\lang1049 "\f0\lang1033 l\f1\lang1049\'e0\f0\lang1033 b\f1\lang1049\'e5\f0\lang1033 l \f1\lang1049\'ee\f0\lang1033 r us\f1\lang1049\'e5\f0\lang1033 link {{\field{\*\fldinst{HYPERLINK https://bitmsg.me/users/sign_in }}{\fldrslt{https://bitmsg.me/users/sign_in\ul0\cf0}}}}\f0\fs20 , \f1\lang1049\'e5\f0\lang1033 nt\f1\lang1049\'e5\f0\lang1033 r \f1\lang1049\'f3\'ee\f0\lang1033 ur \f1\lang1049\'e5\f0\lang1033 m\f1\lang1049\'e0\f0\lang1033 il \f1\lang1049\'e0\f0\lang1033 nd p\f1\lang1049\'e0\f0\lang1033 ssw\f1\lang1049\'ee\f0\lang1033 rd \f1\lang1049\'e0\f0\lang1033 nd click th\f1\lang1049\'e5\f0\lang1033 "Sign in" butt\f1\lang1049\'ee\f0\lang1033 n. \f1\lang1049 \f0\lang1033\par 4. \f1\lang1049\'d1\f0\lang1033 lick th\f1\lang1049\'e5\f0\lang1033 "\f1\lang1049\'d1\f0\lang1033 r\f1\lang1049\'e5\'e0\f0\lang1033 t\f1\lang1049\'e5\f0\lang1033 R\f1\lang1049\'e0\f0\lang1033 nd\f1\lang1049\'ee\f0\lang1033 m \f1\lang1049\'e0\f0\lang1033 ddr\f1\lang1049\'e5\f0\lang1033 ss" butt\f1\lang1049\'ee\f0\lang1033 n.\par 5. \f1\lang1049\'d1\f0\lang1033 lick th\f1\lang1049\'e5\f0\lang1033 "N\f1\lang1049\'e5\f0\lang1033 w m\f1\lang1049\'e0\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 " butt\f1\lang1049\'ee\f0\lang1033 n.\par \b 6. S\f1\lang1049\'e5\f0\lang1033 nding m\f1\lang1049\'e5\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 :\par T\f1\lang1049\'ee\f0\lang1033 :\b0 \f1\lang1049\'c5\f0\lang1033 nt\f1\lang1049\'e5\f0\lang1033 r \f1\lang1049\'e0\f0\lang1033 ddr\f1\lang1049\'e5\f0\lang1033 ss: \b BM-2cUPmiEDYswzWC3ZmbtybDJeUNHqSpERL1\par \pard\sl240\slmult1 Subj\f1\lang1049\'e5\'f1\f0\lang1033 t:\b0 \f1\lang1049\'c5\f0\lang1033 nt\f1\lang1049\'e5\f0\lang1033 r \f1\lang1049\'f3\'ee\f0\lang1033 ur ID: \b 302553D079DB7CED\par M\f1\lang1049\'e5\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 : \b0 D\f1\lang1049\'e5\f0\lang1033 scrib\f1\lang1049\'e5\f0\lang1033 wh\f1\lang1049\'e0\f0\lang1033 t \f1\lang1049\'f3\'ee\f0\lang1033 u think n\f1\lang1049\'e5\f0\lang1033 c\f1\lang1049\'e5\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 r\f1\lang1049\'f3\f0\lang1033 .\par \pard\ri-74\sa200\sl240\slmult1\tx8378\f1\lang1049\'d1\f0\lang1033 lick th\f1\lang1049\'e5\f0\lang1033 "S\f1\lang1049\'e5\f0\lang1033 nd m\f1\lang1049\'e5\f0\lang1033 ss\f1\lang1049\'e0\f0\lang1033 g\f1\lang1049\'e5\f0\lang1033 " butt\f1\lang1049\'ee\f0\lang1033 n.\cf5\b\par \pard\sa200\sl240\slmult1\fs28 sYFusZqZ\cf0\f1\fs32\lang1049\par \par }
Emails
-
[email protected]\cf1\fs24\par
URLs
-
https://bitmsg.me
-
https://bitmsg.me/users/sign_up
-
https://bitmsg.me/users/sign_in
Signatures
- Matrix Ransomware 64 IoCs
Targeted ransomware with information collection and encryption functionality.
- Blocklisted process makes network request 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops desktop.ini file(s) 1 IoCs
- Enumerates connected drives 3 TTPs 21 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Drops file in Program Files directory 64 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 48 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FoxRansomware\0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe"1⤵
- Matrix Ransomware
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C copy /V /Y "C:\Users\Admin\AppData\Local\Temp\FoxRansomware\0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe" "C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWd22ypi.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWd22ypi.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWd22ypi.exe" -n2⤵
- Executes dropped EXE
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\KYYFtAoQ.txt"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')"3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MTYHGEB7.bmp" /f & reg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f & reg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exereg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MTYHGEB7.bmp" /f3⤵
- Sets desktop wallpaper using registry
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-
C:\Windows\SysWOW64\reg.exereg add "HKCU\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d "0" /f3⤵
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C:\Windows\SysWOW64\reg.exereg add "HKCU\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d "0" /f3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C wscript //B //Nologo "C:\Users\Admin\AppData\Roaming\bB5OGSOE.vbs"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wscript.exewscript //B //Nologo "C:\Users\Admin\AppData\Roaming\bB5OGSOE.vbs"3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C schtasks /Create /tn DSHCA /tr "C:\Users\Admin\AppData\Roaming\og1rFSDO.bat" /sc minute /mo 5 /RL HIGHEST /F4⤵
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FoxRansomware\FsjtY9Dm.bat" "C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\L.Admin\ActivitiesCache.db""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib -R -A -S "C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\L.Admin\ActivitiesCache.db"3⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\cacls.execacls "C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\L.Admin\ActivitiesCache.db" /E /G Admin:F /C3⤵
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C:\Windows\SysWOW64\takeown.exetakeown /F "C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\L.Admin\ActivitiesCache.db"3⤵
- Modifies file permissions
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c l98EwHxi.exe -accepteula "ActivitiesCache.db" -nobanner3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
FsjtY9Dm.bat
KYYFtAoQ.txt
NWd22ypi.exe
elog_302553D079DB7CED.txt
__PSScriptPolicyTest_axxgha4i.25n.ps1
#ANN_README#.rtf
bB5OGSOE.vbs
memory/388-31-0x0000000000400000-0x000000000053F000-memory.dmp
memory/388-8-0x0000000000400000-0x000000000053F000-memory.dmp
memory/388-854-0x0000000000400000-0x000000000053F000-memory.dmp
memory/388-45-0x0000000000400000-0x000000000053F000-memory.dmp
memory/388-40-0x0000000000400000-0x000000000053F000-memory.dmp
memory/952-36-0x0000000006090000-0x00000000060AE000-memory.dmp
memory/952-49-0x0000000007960000-0x0000000007FDA000-memory.dmp
memory/952-25-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/952-32-0x0000000074900000-0x00000000750B0000-memory.dmp
memory/952-10-0x0000000002780000-0x00000000027B6000-memory.dmp
memory/952-34-0x0000000002770000-0x0000000002780000-memory.dmp
memory/952-19-0x0000000005A10000-0x0000000005A76000-memory.dmp
memory/952-38-0x00000000060B0000-0x00000000060FC000-memory.dmp
memory/952-18-0x0000000005100000-0x0000000005122000-memory.dmp
memory/952-11-0x0000000074900000-0x00000000750B0000-memory.dmp
memory/952-46-0x0000000002770000-0x0000000002780000-memory.dmp
memory/952-30-0x0000000005BF0000-0x0000000005F44000-memory.dmp
memory/952-50-0x00000000064A0000-0x00000000064BA000-memory.dmp
memory/952-53-0x0000000074900000-0x00000000750B0000-memory.dmp
memory/952-14-0x00000000053E0000-0x0000000005A08000-memory.dmp
memory/952-12-0x0000000002770000-0x0000000002780000-memory.dmp
memory/4604-86-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-15-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-33-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-842-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-9-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-7-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-874-0x0000000000400000-0x000000000053F000-memory.dmp
memory/4604-2294-0x0000000000400000-0x000000000053F000-memory.dmp