Analysis
-
max time kernel
150s -
max time network
145s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
31-03-2023 20:20
Static task
static1
General
-
Target
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe
-
Size
4.1MB
-
MD5
6cfeb8e8284d7be248580946ae604979
-
SHA1
45526a23491fd5b78ac8aa346387633f892a41d7
-
SHA256
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b
-
SHA512
7071d2e439f291d8e033eaf7394d37691b05d703cad1673874e76932c53a3510a2374f0f7d7eaf57e4b5bcc0fc9039fd4d64e7c57ce49aecbc23f18634c7e071
-
SSDEEP
98304:dPWbmmQf6bYMIlp2fj7SK7VpaTBy675FsxVhV:5WbvQf6Eyfj7t7VpaTBJ5eVhV
Malware Config
Signatures
-
Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/3648-120-0x0000000004170000-0x00000000049E7000-memory.dmp family_glupteba behavioral1/memory/3648-121-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/3648-123-0x0000000004170000-0x00000000049E7000-memory.dmp family_glupteba behavioral1/memory/1000-127-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-135-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-136-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-137-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-138-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-139-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-140-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-141-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-142-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-143-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-144-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-145-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-146-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-147-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba behavioral1/memory/2060-148-0x0000000000400000-0x0000000001EAD000-memory.dmp family_glupteba -
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
-
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 2060 csrss.exe 2412 injector.exe -
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe = "0" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe -
Drops file in Windows directory 2 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exedescription ioc process File opened for modification C:\Windows\rss 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe File created C:\Windows\rss\csrss.exe 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4564 schtasks.exe 3740 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.execsrss.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exeinjector.execsrss.exepid process 3648 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 3648 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2060 csrss.exe 2060 csrss.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2060 csrss.exe 2060 csrss.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe 2412 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.execsrss.exedescription pid process Token: SeDebugPrivilege 3648 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Token: SeImpersonatePrivilege 3648 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe Token: SeSystemEnvironmentPrivilege 2060 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.execmd.execsrss.exedescription pid process target process PID 1000 wrote to memory of 1504 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe cmd.exe PID 1000 wrote to memory of 1504 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe cmd.exe PID 1504 wrote to memory of 4016 1504 cmd.exe netsh.exe PID 1504 wrote to memory of 4016 1504 cmd.exe netsh.exe PID 1000 wrote to memory of 2060 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe csrss.exe PID 1000 wrote to memory of 2060 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe csrss.exe PID 1000 wrote to memory of 2060 1000 7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe csrss.exe PID 2060 wrote to memory of 2412 2060 csrss.exe injector.exe PID 2060 wrote to memory of 2412 2060 csrss.exe injector.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe"C:\Users\Admin\AppData\Local\Temp\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe"C:\Users\Admin\AppData\Local\Temp\7d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b.exe"2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
-
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\rss\csrss.exeFilesize
4.1MB
MD56cfeb8e8284d7be248580946ae604979
SHA145526a23491fd5b78ac8aa346387633f892a41d7
SHA2567d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b
SHA5127071d2e439f291d8e033eaf7394d37691b05d703cad1673874e76932c53a3510a2374f0f7d7eaf57e4b5bcc0fc9039fd4d64e7c57ce49aecbc23f18634c7e071
-
C:\Windows\rss\csrss.exeFilesize
4.1MB
MD56cfeb8e8284d7be248580946ae604979
SHA145526a23491fd5b78ac8aa346387633f892a41d7
SHA2567d9f0498a085094154df79464fac02e6dde28aa8213b250fe383ff7bfb5f808b
SHA5127071d2e439f291d8e033eaf7394d37691b05d703cad1673874e76932c53a3510a2374f0f7d7eaf57e4b5bcc0fc9039fd4d64e7c57ce49aecbc23f18634c7e071
-
memory/1000-127-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-137-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-145-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-148-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-135-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-136-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-147-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-138-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-139-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-140-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-141-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-142-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-143-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-144-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/2060-146-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB
-
memory/3648-123-0x0000000004170000-0x00000000049E7000-memory.dmpFilesize
8.5MB
-
memory/3648-120-0x0000000004170000-0x00000000049E7000-memory.dmpFilesize
8.5MB
-
memory/3648-121-0x0000000000400000-0x0000000001EAD000-memory.dmpFilesize
26.7MB