Analysis Overview
SHA256
4eeeb09b82ac8340354fcb7b58f1845adff3d47e4f370e612cb1de7951362aef
Threat Level: Known bad
The file 7f22451fdb349cf64713c504551fa5d8 was found to be: Known bad.
Malicious Activity Summary
Contains code to disable Windows Defender
Modifies WinLogon for persistence
UAC bypass
Downloads MZ/PE file
UPX packed file
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
VMProtect packed file
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-22 08:54
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-22 08:54
Reported
2023-12-22 10:31
Platform
win7-20231129-en
Max time kernel
141s
Max time network
123s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,\"C:\\Users\\Admin\\AppData\\Local\\Pic1fPBkmq\\LOHejsSdpL.exe\" -s" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2544 wrote to memory of 856 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe |
| PID 2544 wrote to memory of 856 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe |
| PID 2544 wrote to memory of 856 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe |
| PID 2544 wrote to memory of 856 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe
"C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe"
C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe
"C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | github.com | udp |
| DE | 140.82.121.3:443 | github.com | tcp |
Files
memory/2544-0-0x0000000000400000-0x00000000007C6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe
| MD5 | 6878e18d54ad7599d01e56514c3452c5 |
| SHA1 | 29e01d6cb27882f7c241fe853847280065a4d74e |
| SHA256 | e547c04028ff938664acaaab0569d6ffc13546a88d5070a58c0c11b656f213b2 |
| SHA512 | 1e9f1060373c869009f381430dca752147303e394df0318e9a5ccd66bd8ab94d9afd1d6dc3280cb01629476b9148f36d2e11e65ce54ee9433db103d3e83f07a8 |
memory/2544-5-0x0000000000900000-0x0000000000910000-memory.dmp
\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe
| MD5 | 39de4b16741b8121cd4ab43867d41365 |
| SHA1 | ab9bb8b961c7a2944857c18daeef3bc38929975f |
| SHA256 | 955866bdf0f77778e5b1179dee9a0332c1989dc6c461b53ac90c23990b45efc7 |
| SHA512 | 517be18595081f4354e8fc77122af0acd264577ac3ec7c269ab62aa7952ff55565501d08873971cd9ee9baf56131152c6a17e5282931920dc26d928c21b6af5d |
C:\Users\Admin\AppData\Local\Temp\BGtEXjsyJ0.exe
| MD5 | 7065d6cee16f88c07edba65d0646c78e |
| SHA1 | bdf4a1b44bfa8cbd77a2817440a67a40dcf41b56 |
| SHA256 | 5817d61c0f6cf854c010f1db4a61683373605a8addc11f96d65bad891978855f |
| SHA512 | 50cb8dfb85a5ab19e6596036df1cf367bad92ecc56e5fbea07f87b11a153c9a058d2ffef84a5e70c149de8b0d11078cfdb0244acc7c3a5ccd5c0224fd89794b6 |
memory/856-12-0x0000000073F40000-0x000000007462E000-memory.dmp
memory/856-11-0x0000000000D00000-0x0000000000F7E000-memory.dmp
memory/856-14-0x0000000000A80000-0x0000000000ADC000-memory.dmp
memory/856-13-0x0000000004A30000-0x0000000004A70000-memory.dmp
memory/856-15-0x0000000004DB0000-0x0000000004E5A000-memory.dmp
memory/856-16-0x0000000004A30000-0x0000000004A70000-memory.dmp
memory/2544-18-0x0000000000400000-0x00000000007C6000-memory.dmp
memory/2544-19-0x0000000000900000-0x0000000000910000-memory.dmp
memory/856-20-0x0000000073F40000-0x000000007462E000-memory.dmp
memory/856-22-0x0000000004A30000-0x0000000004A70000-memory.dmp
memory/856-23-0x0000000004A30000-0x0000000004A70000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-22 08:54
Reported
2023-12-22 10:31
Platform
win10v2004-20231215-en
Max time kernel
143s
Max time network
151s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,\"C:\\Users\\Admin\\AppData\\Local\\Pic1fPBkmq\\LOHejsSdpL.exe\" -s" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3708 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe |
| PID 3708 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe |
| PID 3708 wrote to memory of 4772 | N/A | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe
"C:\Users\Admin\AppData\Local\Temp\7f22451fdb349cf64713c504551fa5d8.exe"
C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe
"C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 149.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | github.com | udp |
| DE | 140.82.121.3:443 | github.com | tcp |
| US | 8.8.8.8:53 | raw.githubusercontent.com | udp |
| US | 185.199.108.133:443 | raw.githubusercontent.com | tcp |
| US | 8.8.8.8:53 | 3.121.82.140.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.108.199.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.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 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.80.50.20.in-addr.arpa | udp |
Files
memory/3708-0-0x0000000000400000-0x00000000007C6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\8XDrnIyHFF.exe
| MD5 | 1a3b165f0b90ea336b0a60deda37a114 |
| SHA1 | 544433f1d7279d84252ae0caa007eea90651844d |
| SHA256 | 56c2d26dfa12fc48b0c5005b228bc8b4956c05809d55f8e5b7b3749d9538346c |
| SHA512 | 0329b7e5ed9140cdde87abb2c2f3fca4737c703cd19124c92137bbd397b2d1a068bdd6bb2b43b6536b84cdf19760af7d5d863188f3963d1901f0a65967aeca9d |
memory/4772-14-0x00000000005A0000-0x000000000081E000-memory.dmp
memory/4772-15-0x00000000735F0000-0x0000000073DA0000-memory.dmp
memory/4772-16-0x0000000009C10000-0x000000000A1B4000-memory.dmp
memory/4772-17-0x0000000009700000-0x0000000009792000-memory.dmp
memory/4772-18-0x0000000002AE0000-0x0000000002AF0000-memory.dmp
memory/4772-19-0x00000000097A0000-0x00000000097FC000-memory.dmp
memory/4772-20-0x0000000009930000-0x000000000993A000-memory.dmp
memory/4772-21-0x000000000A9F0000-0x000000000AA9A000-memory.dmp
memory/4772-22-0x0000000002AE0000-0x0000000002AF0000-memory.dmp
memory/3708-25-0x0000000000400000-0x00000000007C6000-memory.dmp
memory/4772-27-0x00000000735F0000-0x0000000073DA0000-memory.dmp
memory/4772-28-0x0000000002AE0000-0x0000000002AF0000-memory.dmp
memory/4772-29-0x0000000002AE0000-0x0000000002AF0000-memory.dmp