Malware Analysis Report

2025-08-10 18:19

Sample ID 220208-vfahfsbca9
Target b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404
SHA256 b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404
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

b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404

Threat Level: Known bad

The file b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404 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 Program Files directory

Drops file in Windows directory

Enumerates physical storage devices

Modifies data under HKEY_USERS

Suspicious behavior: CmdExeWriteProcessMemorySpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-02-08 16:55

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

2022-02-08 16:55

Reported

2022-02-08 18:41

Platform

win7-en-20211208

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\IObit C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A
File opened for modification C:\Program Files\IObit\IObit Uninstaller C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A
File created C:\Program Files\IObit\IObit Uninstaller\__tmp_rar_sfx_access_check_259409678 C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A
File created C:\Program Files\IObit\IObit Uninstaller\RegisterCom.dll C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A
File opened for modification C:\Program Files\IObit\IObit Uninstaller\RegisterCom.dll C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A

Enumerates physical storage devices

Suspicious behavior: CmdExeWriteProcessMemorySpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe

"C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2BE2.bat C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe

2.exe

Network

N/A

Files

memory/1688-54-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2BE2.bat

MD5 a4d54825c48a32efc53e34ea0f588d1c
SHA1 cd5815db470cf3af4d6ce658151eb24fef1c664f
SHA256 a80606f4473428d06cee3e62fd68ec7fc9b99a563260a5ed0d012d76634efe39
SHA512 74058d5b0e14ad7b453ed6119e483d3ac3281405f29f2f804c67c0e3b112c68349d8893e8232e3ca93695f43705fcf6a18ec3f6016e68bfe11b1b10a79ba723b

C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe

MD5 18605f153c756e3e713efe93bfb026b8
SHA1 541227cb9f5d2a156d354c207cfc0f9716035dcb
SHA256 dc62e88318ad70a5ec73dca2eb3aa5546711adb078ef2c91c6539452a60cc9a0
SHA512 d603ea56262e85e559e5cfeeaed4226d9f1c005639a60256afb4f6812689d014b4a22f974946d64898516762d29984d36a2d477255f60ba22b66897ab1e9cdf2

C:\Users\Admin\AppData\Local\Temp\2BD1.tmp\2.exe

MD5 18605f153c756e3e713efe93bfb026b8
SHA1 541227cb9f5d2a156d354c207cfc0f9716035dcb
SHA256 dc62e88318ad70a5ec73dca2eb3aa5546711adb078ef2c91c6539452a60cc9a0
SHA512 d603ea56262e85e559e5cfeeaed4226d9f1c005639a60256afb4f6812689d014b4a22f974946d64898516762d29984d36a2d477255f60ba22b66897ab1e9cdf2

Analysis: behavioral2

Detonation Overview

Submitted

2022-02-08 16:55

Reported

2022-02-08 18:41

Platform

win10v2004-en-20220112

Max time kernel

192s

Max time network

207s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.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\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\IObit C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe N/A
File opened for modification C:\Program Files\IObit\IObit Uninstaller C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe N/A
File created C:\Program Files\IObit\IObit Uninstaller\__tmp_rar_sfx_access_check_30387531 C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe N/A
File created C:\Program Files\IObit\IObit Uninstaller\RegisterCom.dll C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe N/A
File opened for modification C:\Program Files\IObit\IObit Uninstaller\RegisterCom.dll C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.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

Modifies data under HKEY_USERS

Description Indicator Process Target
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 (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\UploadRatePct = "100" 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006764" 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\UploadCount = "0" 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\UploadMonthlyLanBytes = "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\LANConnectionCount = "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 (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\Config\KVFileExpirationTime = "132889955835691064" 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.365206" 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\UplinkUsageBps = "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
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\Config 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\LinkLocalConnectionCount = "0" 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
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\UploadMonthlyInternetBytes = "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\MemoryUsageKB = "3836" 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
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 (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\FrDownloadRatePct = "90" C:\Windows\System32\svchost.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4028" 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\PriorityDownloadPendingCount = "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\DownloadMonthlyCacheHostBytes = "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\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\GroupConnectionCount = "0" C:\Windows\System32\svchost.exe N/A
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 (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "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\CacheSizeBytes = "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

Processes

C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe

"C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k NetworkService -p

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2BC8.bat C:\Users\Admin\AppData\Local\Temp\b9e7ab65230fea95a7e5ef46aee7a89c888d8f8d75aa7bd94a8ae613a31ab404.exe"

C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe

2.exe

Network

Country Destination Domain Proto
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 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
NL 51.124.78.146:443 settings-win.data.microsoft.com tcp
NL 51.124.78.146:443 settings-win.data.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
US 52.167.249.196:443 settings-win.data.microsoft.com tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 geo.prod.do.dsp.mp.microsoft.com udp
IE 51.104.162.168:443 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

Files

C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2BC8.bat

MD5 a4d54825c48a32efc53e34ea0f588d1c
SHA1 cd5815db470cf3af4d6ce658151eb24fef1c664f
SHA256 a80606f4473428d06cee3e62fd68ec7fc9b99a563260a5ed0d012d76634efe39
SHA512 74058d5b0e14ad7b453ed6119e483d3ac3281405f29f2f804c67c0e3b112c68349d8893e8232e3ca93695f43705fcf6a18ec3f6016e68bfe11b1b10a79ba723b

C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe

MD5 18605f153c756e3e713efe93bfb026b8
SHA1 541227cb9f5d2a156d354c207cfc0f9716035dcb
SHA256 dc62e88318ad70a5ec73dca2eb3aa5546711adb078ef2c91c6539452a60cc9a0
SHA512 d603ea56262e85e559e5cfeeaed4226d9f1c005639a60256afb4f6812689d014b4a22f974946d64898516762d29984d36a2d477255f60ba22b66897ab1e9cdf2

C:\Users\Admin\AppData\Local\Temp\2BA7.tmp\2.exe

MD5 18605f153c756e3e713efe93bfb026b8
SHA1 541227cb9f5d2a156d354c207cfc0f9716035dcb
SHA256 dc62e88318ad70a5ec73dca2eb3aa5546711adb078ef2c91c6539452a60cc9a0
SHA512 d603ea56262e85e559e5cfeeaed4226d9f1c005639a60256afb4f6812689d014b4a22f974946d64898516762d29984d36a2d477255f60ba22b66897ab1e9cdf2