Analysis
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max time kernel
120s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-09-2024 18:55
Static task
static1
Behavioral task
behavioral1
Sample
7ZSfxMod.exe
Resource
win7-20240903-en
General
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Target
7ZSfxMod.exe
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Size
3.6MB
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MD5
60360a0972149ee8ca84c288bdf39d6c
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SHA1
843c4ffbca3b189088180661939c6a13dd01d20c
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SHA256
b2afdcbf92f1b41139d177ef0f232631b25f5b05731b7348de0ad7ef89ed51a1
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SHA512
aab61fc28a166c1cb653c5482e3f6db70ee88216a28805a78d8072777e1c44a0461c9edda541cfdd6815ace3976e1f74aa4afbcc1a5b1e9241c3fedec46374b5
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SSDEEP
98304:ctAHsVyBjcigPR21cmyoqJ+/ftPgKUJpF+fpHLOsg55ISgEHFY:ctAHHjwRFmAJSgPFAiJ5etV
Malware Config
Extracted
sality
http://89.119.67.154/testo5/
http://kukutrustnet777.info/home.gif
http://kukutrustnet888.info/home.gif
http://kukutrustnet987.info/home.gif
http://www.klkjwre9fqwieluoi.info/
http://kukutrustnet777888.info/
Signatures
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Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" 7ZSfxMod.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7ZSfxMod.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 7ZSfxMod.exe -
Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012260-36.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000b000000012260-36.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2248 7ZSfxMod.exe -
resource yara_rule behavioral1/files/0x000b000000012260-36.dat upx behavioral1/memory/2248-33-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-34-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-32-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-29-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-31-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-13-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-12-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-27-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-28-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-14-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-39-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-8-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2248-41-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-40-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-44-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-45-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2248-47-0x0000000002860000-0x00000000038EE000-memory.dmp upx behavioral1/memory/2248-65-0x0000000010000000-0x0000000010030000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 7ZSfxMod.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 7ZSfxMod.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 7ZSfxMod.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7ZSfxMod.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: 7ZSfxMod.exe File opened (read-only) \??\E: 7ZSfxMod.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 7ZSfxMod.exe File created \??\c:\program files\common files\system\symsrv.dll.000 7ZSfxMod.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI 7ZSfxMod.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7ZSfxMod.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2248 7ZSfxMod.exe 2248 7ZSfxMod.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2248 7ZSfxMod.exe Token: SeDebugPrivilege 2248 7ZSfxMod.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2248 wrote to memory of 1120 2248 7ZSfxMod.exe 19 PID 2248 wrote to memory of 1192 2248 7ZSfxMod.exe 20 PID 2248 wrote to memory of 1252 2248 7ZSfxMod.exe 21 PID 2248 wrote to memory of 1612 2248 7ZSfxMod.exe 25 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 7ZSfxMod.exe
Processes
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1120
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1192
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1252
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C:\Users\Admin\AppData\Local\Temp\7ZSfxMod.exe"C:\Users\Admin\AppData\Local\Temp\7ZSfxMod.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2248
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:1612
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
4Disable or Modify System Firewall
1Disable or Modify Tools
3Modify Registry
5Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab