Malware Analysis Report

2025-08-10 18:20

Sample ID 220207-rpqz1sdaf7
Target b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7
SHA256 b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7
Tags
upx gozi_ifsb
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7

Threat Level: Known bad

The file b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7 was found to be: Known bad.

Malicious Activity Summary

upx gozi_ifsb

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

Analysis: static1

Detonation Overview

Reported

2022-02-07 14:22

Signatures

Gozi_ifsb family

gozi_ifsb

UPX packed file

upx
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

"C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"

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

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

N/A

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

"C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"

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

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