Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
10/11/2024, 02:13
Behavioral task
behavioral1
Sample
be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe
Resource
win7-20241023-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe
- Size 43KB
- Sample241110-cnwrjsxeka
- SHA256 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f
- MD5 ffd3502aee7a0096e891daf97c8306f2
- SHA1 f605279ac1382cbbf0a41bc77a6924e0f18cf083
- SHA512 b493b65ba903f5f9f60612fa2c4c7fa67d71116745c373989394489f2410cd7b2b0f0d49eb3a1a94a5f15a398dbfbf09856ea43f527bfea2842dad50e2c6f57a
- SSDEEP 768:pB3Yvnl5pzqsgKnXpkoHS6KZIFhf8HuKWJI3HG+VVVpkv:zIvl5dKYXGB2IuPJIzg
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe - Executes dropped EXE 4 IoCs
pid Process 3620 explorer.exe 2188 spoolsv.exe 2472 svchost.exe 3160 spoolsv.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" svchost.exe - Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\explorer.exe explorer.exe File opened for modification C:\Windows\SysWOW64\explorer.exe svchost.exe -
resource yara_rule behavioral2/memory/5064-0-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/files/0x000c000000023ba4-7.dat upx behavioral2/files/0x000b000000023ba9-13.dat upx behavioral2/files/0x000b000000023bab-23.dat upx behavioral2/memory/3160-33-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/memory/2188-35-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/memory/5064-37-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/memory/3620-38-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/memory/2472-39-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral2/memory/3620-50-0x0000000000400000-0x0000000000422000-memory.dmp upx - Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification \??\c:\windows\resources\themes\explorer.exe be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe File opened for modification \??\c:\windows\resources\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\resources\svchost.exe spoolsv.exe File opened for modification C:\Windows\Resources\tjud.exe explorer.exe - System Location Discovery: System Language Discovery 1 TTPs 5 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 explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe 3620 explorer.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 3620 explorer.exe 2472 svchost.exe - Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 3620 explorer.exe 3620 explorer.exe 2188 spoolsv.exe 2188 spoolsv.exe 2472 svchost.exe 2472 svchost.exe 3160 spoolsv.exe 3160 spoolsv.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 5064 wrote to memory of 3620 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 83 PID 5064 wrote to memory of 3620 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 83 PID 5064 wrote to memory of 3620 5064 be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe 83 PID 3620 wrote to memory of 2188 3620 explorer.exe 84 PID 3620 wrote to memory of 2188 3620 explorer.exe 84 PID 3620 wrote to memory of 2188 3620 explorer.exe 84 PID 2188 wrote to memory of 2472 2188 spoolsv.exe 86 PID 2188 wrote to memory of 2472 2188 spoolsv.exe 86 PID 2188 wrote to memory of 2472 2188 spoolsv.exe 86 PID 2472 wrote to memory of 3160 2472 svchost.exe 87 PID 2472 wrote to memory of 3160 2472 svchost.exe 87 PID 2472 wrote to memory of 3160 2472 svchost.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe"C:\Users\Admin\AppData\Local\Temp\be8aab1268264ff8cdd4df0099261ad8d124030b1429a3a4f3b2f53729ac438f.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5064 -
\??\c:\windows\resources\themes\explorer.exec:\windows\resources\themes\explorer.exe2⤵
- 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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3620 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe SE3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2188 -
\??\c:\windows\resources\svchost.exec:\windows\resources\svchost.exe4⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2472 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe PR5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\Resources\Themes\explorer.exe
- Size 43KB
- SHA256 e5a20430cf3a5a7c93bb4d4c642dd0ffcf9029d861e9176805c94e0e0eacbe5c
- MD5 22842804c55fd4529a586dc924005792
- SHA1 8730e33dcbf503ef630dcd69314c4907c018c1dc
- SHA512 4b8e2c1f0782e1c2476deb4194ceb6b9d71eb000ec36bac405e689459ea1a12aa94acd41de368f350a3314a84fafbfc4da59acf84a6a09f279828d7222dcff29
- SSDEEP 768:pB3Yvnl5pzqsgKnXpkoHS6KZIFhf8HuKWJI3HG+VVVpi:zIvl5dKYXGB2IuPJIzi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\Resources\spoolsv.exe
- Size 43KB
- SHA256 e20815fc6754c766645bc79ccd1ea60a47f9b8a261fb6c41a7df152e82420b78
- MD5 2df126e34922325c639fa9131414157b
- SHA1 94a4a87b16c5835aaa28c011c585a1b30bfd5a8a
- SHA512 d60d1426ce5b5e815d192b93bbedbcc8c25d78dcfb2490b52549f1592976431ef4c31ef298cad295bfb4adc14a32230ee0d2cadc687107432df5e24c5f8b72ed
- SSDEEP 768:pB3Yvnl5pzqsgKnXpkoHS6KZIFhf8HuKWJI3HG+VVVpG:zIvl5dKYXGB2IuPJIzG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\Resources\svchost.exe
- Size 43KB
- SHA256 974907649bb65b22f50e0df1440183553922b0187ee724519f9650b1bd700a9c
- MD5 79b9a60c1df70f15e557bcb908ab81b1
- SHA1 9c5a87d0575ffbc88490a7fe0954f7cbdd2305aa
- SHA512 f80989ba3e7e2fd6b7a5fae255a361d88a147f1daa20443d12fb8fd836f1a5bc5f276cb0b46ddf344643d7469b2b3c106a9a49911cb68316de3c00b09715f861
- SSDEEP 768:pB3Yvnl5pzqsgKnXpkoHS6KZIFhf8HuKWJI3HG+VVVp8:zIvl5dKYXGB2IuPJIz8
- MD5 SHA1 SHA512 SSDEEP