Analysis Overview
SHA256
b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7
Threat Level: Known bad
The file b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7 was found to be: Known bad.
Malicious Activity Summary
Gozi_ifsb family
UPX packed file
Executes dropped EXE
Checks computer location settings
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious use of WriteProcessMemory
Checks processor information in registry
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-07 14:22
Signatures
Gozi_ifsb family
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-07 14:22
Reported
2022-02-07 15:37
Platform
win7-en-20211208
Max time kernel
141s
Max time network
149s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Wondershare | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
| File opened for modification | C:\Program Files\Wondershare\Video Converter Ultimate | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
| File created | C:\Program Files\Wondershare\Video Converter Ultimate\__tmp_rar_sfx_access_check_174877 | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
| File created | C:\Program Files\Wondershare\Video Converter Ultimate\VideoConverterUltimate.exe | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
| File opened for modification | C:\Program Files\Wondershare\Video Converter Ultimate\VideoConverterUltimate.exe | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: CmdExeWriteProcessMemorySpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe
"C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\A7C4.bat C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe
1.exe
Network
Files
memory/2008-54-0x0000000076C91000-0x0000000076C93000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\A7C4.bat
| MD5 | 9dbd103fde299b4f497d7ec4fe1e6b12 |
| SHA1 | c64cf60fda82b47816bd94f95bd0cf9efb0f6411 |
| SHA256 | 9eb78f06602b7f106b2f32a360629ff544456a6894c64656ae3fb2d533d84806 |
| SHA512 | 48359429cef71cf6f825f97b9d458108eb7035e20096afa83cdc21bcd45e7b2a9b59269cf8f58770f9530d1e824a8e229d9cc3dc7bb8a3501f2151d9f6e2bf53 |
C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe
| MD5 | c44bac1915fd09fd8cb6c46fcee2dd0c |
| SHA1 | 8ded0a8c44933bf30617c33eacebe4b5966e6195 |
| SHA256 | 99f68039d5bc1448bed6ddaabaa58a6222c4a6c9887a60ee7c5e0cc570ad8443 |
| SHA512 | 8eefd3db7c6d088869504884bd6a8943bd6fd2f819814d6048bf393643b3ada11cbfb16091638c8f48915cd4bd37f54189ac1c8c588618d3238314dd0d179746 |
C:\Users\Admin\AppData\Local\Temp\A7C3.tmp\1.exe
| MD5 | c44bac1915fd09fd8cb6c46fcee2dd0c |
| SHA1 | 8ded0a8c44933bf30617c33eacebe4b5966e6195 |
| SHA256 | 99f68039d5bc1448bed6ddaabaa58a6222c4a6c9887a60ee7c5e0cc570ad8443 |
| SHA512 | 8eefd3db7c6d088869504884bd6a8943bd6fd2f819814d6048bf393643b3ada11cbfb16091638c8f48915cd4bd37f54189ac1c8c588618d3238314dd0d179746 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-07 14:22
Reported
2022-02-07 15:37
Platform
win10v2004-en-20220112
Max time kernel
172s
Max time network
171s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Wondershare | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
| File opened for modification | C:\Program Files\Wondershare\Video Converter Ultimate | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
| File created | C:\Program Files\Wondershare\Video Converter Ultimate\__tmp_rar_sfx_access_check_30361734 | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
| File created | C:\Program Files\Wondershare\Video Converter Ultimate\VideoConverterUltimate.exe | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
| File opened for modification | C:\Program Files\Wondershare\Video Converter Ultimate\VideoConverterUltimate.exe | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat | C:\Windows\System32\svchost.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\system32\MusNotifyIcon.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\system32\MusNotifyIcon.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.877622" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4012" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132888982027268337" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1568 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe | C:\Windows\system32\cmd.exe |
| PID 1568 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe | C:\Windows\system32\cmd.exe |
| PID 2580 wrote to memory of 2860 | N/A | C:\Windows\system32\cmd.exe | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe |
| PID 2580 wrote to memory of 2860 | N/A | C:\Windows\system32\cmd.exe | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe |
| PID 2580 wrote to memory of 2860 | N/A | C:\Windows\system32\cmd.exe | C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe
"C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\CD99.tmp\CF8E.bat C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe
1.exe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
Network
| Country | Destination | Domain | Proto |
| NL | 104.80.224.57:443 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.249.196:443 | settings-win.data.microsoft.com | tcp |
| US | 52.167.249.196:443 | settings-win.data.microsoft.com | tcp |
| US | 52.167.249.196:443 | settings-win.data.microsoft.com | tcp |
| NL | 67.26.105.254:80 | tcp | |
| NL | 67.26.105.254:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| NL | 51.124.78.146:443 | settings-win.data.microsoft.com | tcp |
| US | 8.8.8.8:53 | geo.prod.do.dsp.mp.microsoft.com | udp |
| US | 52.184.212.181:443 | geo.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | kv801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | kv801.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.249.196:443 | settings-win.data.microsoft.com | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\CD99.tmp\CF8E.bat
| MD5 | 9dbd103fde299b4f497d7ec4fe1e6b12 |
| SHA1 | c64cf60fda82b47816bd94f95bd0cf9efb0f6411 |
| SHA256 | 9eb78f06602b7f106b2f32a360629ff544456a6894c64656ae3fb2d533d84806 |
| SHA512 | 48359429cef71cf6f825f97b9d458108eb7035e20096afa83cdc21bcd45e7b2a9b59269cf8f58770f9530d1e824a8e229d9cc3dc7bb8a3501f2151d9f6e2bf53 |
C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe
| MD5 | c44bac1915fd09fd8cb6c46fcee2dd0c |
| SHA1 | 8ded0a8c44933bf30617c33eacebe4b5966e6195 |
| SHA256 | 99f68039d5bc1448bed6ddaabaa58a6222c4a6c9887a60ee7c5e0cc570ad8443 |
| SHA512 | 8eefd3db7c6d088869504884bd6a8943bd6fd2f819814d6048bf393643b3ada11cbfb16091638c8f48915cd4bd37f54189ac1c8c588618d3238314dd0d179746 |
C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe
| MD5 | c44bac1915fd09fd8cb6c46fcee2dd0c |
| SHA1 | 8ded0a8c44933bf30617c33eacebe4b5966e6195 |
| SHA256 | 99f68039d5bc1448bed6ddaabaa58a6222c4a6c9887a60ee7c5e0cc570ad8443 |
| SHA512 | 8eefd3db7c6d088869504884bd6a8943bd6fd2f819814d6048bf393643b3ada11cbfb16091638c8f48915cd4bd37f54189ac1c8c588618d3238314dd0d179746 |