Analysis Overview
SHA256
ae21ba5180792c82ca62a790eb46de8d521e95bf5c8fe79d7db8d4593fca32db
Threat Level: Known bad
The file applehook_temp.exe was found to be: Known bad.
Malicious Activity Summary
Gozi
Modifies visiblity of hidden/system files in Explorer
Executes dropped EXE
Adds Run key to start application
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-10 11:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-10 11:37
Reported
2024-02-10 12:10
Platform
win10v2004-20231215-en
Max time kernel
1805s
Max time network
1337s
Command Line
Signatures
Gozi
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\resources\themes\explorer.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | \??\c:\windows\resources\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\users\admin\appdata\local\temp\applehook_temp.exe | N/A |
| N/A | N/A | C:\Windows\Resources\Themes\icsys.icn.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\themes\explorer.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\svchost.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" | \??\c:\windows\resources\themes\explorer.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" | \??\c:\windows\resources\themes\explorer.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" | \??\c:\windows\resources\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" | \??\c:\windows\resources\svchost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\explorer.exe | \??\c:\windows\resources\themes\explorer.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\explorer.exe | \??\c:\windows\resources\svchost.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\windows\resources\themes\explorer.exe | C:\Windows\Resources\Themes\icsys.icn.exe | N/A |
| File opened for modification | \??\c:\windows\resources\spoolsv.exe | \??\c:\windows\resources\themes\explorer.exe | N/A |
| File opened for modification | \??\c:\windows\resources\svchost.exe | \??\c:\windows\resources\spoolsv.exe | N/A |
| File opened for modification | C:\Windows\Resources\tjud.exe | \??\c:\windows\resources\themes\explorer.exe | N/A |
| File opened for modification | C:\Windows\Resources\Themes\tjcm.cmn | \??\c:\windows\resources\themes\explorer.exe | N/A |
| File opened for modification | C:\Windows\Resources\Themes\icsys.icn.exe | C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\resources\themes\explorer.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\svchost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe | N/A |
| N/A | N/A | C:\Windows\Resources\Themes\icsys.icn.exe | N/A |
| N/A | N/A | C:\Windows\Resources\Themes\icsys.icn.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\themes\explorer.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\themes\explorer.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\svchost.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\svchost.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
| N/A | N/A | \??\c:\windows\resources\spoolsv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe
"C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe"
\??\c:\users\admin\appdata\local\temp\applehook_temp.exe
c:\users\admin\appdata\local\temp\applehook_temp.exe
C:\Windows\Resources\Themes\icsys.icn.exe
C:\Windows\Resources\Themes\icsys.icn.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c certutil -hashfile "c:\users\admin\appdata\local\temp\applehook_temp.exe " MD5 | find /i /v "md5" | find /i /v "certutil"
C:\Windows\system32\certutil.exe
certutil -hashfile "c:\users\admin\appdata\local\temp\applehook_temp.exe " MD5
C:\Windows\system32\find.exe
find /i /v "md5"
C:\Windows\system32\find.exe
find /i /v "certutil"
\??\c:\windows\resources\themes\explorer.exe
c:\windows\resources\themes\explorer.exe
\??\c:\windows\resources\spoolsv.exe
c:\windows\resources\spoolsv.exe SE
\??\c:\windows\resources\svchost.exe
c:\windows\resources\svchost.exe
\??\c:\windows\resources\spoolsv.exe
c:\windows\resources\spoolsv.exe PR
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c color 5
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c color 5
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c wmic diskdrive get model, serialnumber
C:\Windows\System32\Wbem\WMIC.exe
wmic diskdrive get model, serialnumber
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ECHO CPU
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c wmic cpu get serialnumber
C:\Windows\System32\Wbem\WMIC.exe
wmic cpu get serialnumber
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ECHO BIOS
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c wmic bios get serialnumber
C:\Windows\System32\Wbem\WMIC.exe
wmic bios get serialnumber
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ECHO Motherboard
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c wmic baseboard get serialnumber
C:\Windows\System32\Wbem\WMIC.exe
wmic baseboard get serialnumber
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ECHO smBIOS UUID
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c wmic path win32_computersystemproduct get uuid
C:\Windows\System32\Wbem\WMIC.exe
wmic path win32_computersystemproduct get uuid
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c getmac
C:\Windows\system32\getmac.exe
getmac
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c cls
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | keyauth.win | udp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.1.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | x2.c.lencr.org | udp |
| GB | 173.222.13.40:80 | x2.c.lencr.org | tcp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 40.13.222.173.in-addr.arpa | udp |
| N/A | 127.0.0.1:55516 | tcp | |
| N/A | 127.0.0.1:55518 | tcp | |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| N/A | 127.0.0.1:55554 | tcp | |
| N/A | 127.0.0.1:55556 | tcp | |
| N/A | 127.0.0.1:55559 | tcp | |
| N/A | 127.0.0.1:55561 | tcp | |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.178.89.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | codecmd01.googlecode.com | udp |
| NL | 142.250.27.82:80 | codecmd01.googlecode.com | tcp |
| US | 8.8.8.8:53 | 82.27.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | codecmd02.googlecode.com | udp |
| NL | 142.250.27.82:80 | codecmd02.googlecode.com | tcp |
Files
memory/208-0-0x0000000000400000-0x000000000041F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\applehook_temp.exe
| MD5 | ce537fe72153547615133027f822117e |
| SHA1 | fb2c057974c3f8ee00d465fbc8476adc70cf3bb2 |
| SHA256 | 63e75051f007465837e130a3fa577c544ed82ebb29b06b98e265328f70430f6d |
| SHA512 | b2c483174a9447ef1b16f56e4a2913b178b737025f93c64163b0a5340a0a9b2eb5ae45c99a5ea5c7e30b19df982e9ecd1b0039c010369786a7a6e10bbc166c68 |
C:\Windows\Resources\Themes\icsys.icn.exe
| MD5 | 0846d04802d0d2bc256dae2aae810494 |
| SHA1 | 622b46409360a6ce85f9cf689c779e4c05d9b341 |
| SHA256 | 5e3874494812f76e3bcd64fbf76c38d96fc720ca33a11b0aac72e85589ce6e67 |
| SHA512 | a62166cb7b8c9da3a4614c77442db66bb9b89c02999ab7f8b865f2c5b061f1c35761531d2ccc049fab211f3d0790d6fa42e983e99c59a19f179cc4fb41d05da0 |
memory/4332-11-0x0000000000400000-0x000000000041F000-memory.dmp
\??\c:\users\admin\appdata\local\temp\applehook_temp.exe
| MD5 | fb015ddb83ca5e720882868eee644419 |
| SHA1 | 6df7047e55d9cec3f3741c85a41b50df7eaf1183 |
| SHA256 | bf09ec94bfb540317de293ba2ee830d9f28978bfb3787b6cbb467a97ffca1b82 |
| SHA512 | 14fa4622f92be071ed1eb1bd3850ab4babab3f9770bd47d808164bf39c2f0c296d6c7dad41927d0ad4fff38494426519df6dc29f2f61af74d0906db1a8ac7195 |
C:\Windows\Resources\Themes\explorer.exe
| MD5 | e6373fe29877ec46fe80a8f62bd9ac27 |
| SHA1 | 6c87bd739910e7d0a1aa6c9fa39f4a05d27976dc |
| SHA256 | e4f5cf36d13c6ce0b510a17ed0bf558ac065292152301155353990507dc20171 |
| SHA512 | 9b2c77a70f7a88b95ef91db7fe0a7488e624e69a9df2f438d70e0c071da20767d9d2d774e68cc61144ae51a612a667dac76cfcd9ffb5ebaa88be021dc06863d7 |
C:\Windows\Resources\Themes\explorer.exe
| MD5 | 0d42bc335fe012a8ef511451165a16b8 |
| SHA1 | 31078dce496744b380d51e5a2cc12e9c2151e716 |
| SHA256 | 2249b869b9c0741be62de42f4d553a8b116bc126f4075831ab42eeac0f29b6ba |
| SHA512 | a32ecf6fb9176a8648bd560a5b95c9012a031748e486b4ef66d49a557f21ae469c9738f20b6898e99cd54b056e0dc8698d2e5999687bad35b30381025ae150fb |
C:\Windows\Resources\spoolsv.exe
| MD5 | f8828c98ae29df48173887014efeaa77 |
| SHA1 | db133820ac05c9e563a3f1bb9cd11a9c330b41d5 |
| SHA256 | 421d97adc0bc2bbbe08843dfb9aba7d403ff58949e065924ea4a62a45282f287 |
| SHA512 | 22961188718335f1286a927744ad4965774f6acbf4b041ed70b231650d12f0ad1ef7deadfacaf5eb27171d47253370f8fa8057e2ea3c05a5cad77b8448465a02 |
C:\Windows\Resources\svchost.exe
| MD5 | 59a5c10d3ed9db158ac2ef26e3e05e2f |
| SHA1 | bdfb54033f66a63d531e84ae535295a0430958d4 |
| SHA256 | 240661b0e173914ab953081ba8457ed7ea2ff2c0cc5d105d9eb41feba71ce1ef |
| SHA512 | cfddd1174e443bf42d666286a77c4c8db0bffb7db4a6e2747aa1239ff10ba2188910d588289904cc099db3770f49fdfa8dd045ca98090f4ff0a6da089a7e278e |
memory/3140-44-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4332-46-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4812-45-0x0000000000400000-0x000000000041F000-memory.dmp
memory/208-47-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4856-48-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3008-49-0x0000000000400000-0x000000000041F000-memory.dmp