Analysis
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max time kernel
206s -
max time network
214s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 04:24
Behavioral task
behavioral1
Sample
45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe
Resource
win10v2004-20221111-en
General
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Target
45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe
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Size
33KB
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MD5
d3aa3ce5454c73718cfea2bafcf15b1e
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SHA1
0a1712c8f65a5044d5e95f02913a40e614dcda33
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SHA256
45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c
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SHA512
866c98fb4589c1cab8351d6c639beb8d15547f05f2b6620efaad5eaffc226f9c18c64fd6afd954ef7ea08f1b91ade9adabb483301e76df9224a0d0adcedad6a1
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SSDEEP
768:9bXIxF9wgv52zGzcA5JUKytvmBB/Kmy+m+nq3T:9jYzwgv0KzcA5JivqiUgT
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2836 sysload.com -
resource yara_rule behavioral2/files/0x000600000002263a-135.dat upx behavioral2/files/0x000600000002263a-136.dat upx behavioral2/memory/4388-139-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/2836-140-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/4388-141-0x0000000000400000-0x000000000042C000-memory.dmp upx behavioral2/memory/2836-142-0x0000000000400000-0x000000000042C000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sysload = "C:\\Windows\\SysWOW64\\sysload.COM" sysload.com Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run sysload.com -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\sysload.com 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe File opened for modification C:\Windows\SysWOW64\sysload.com 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe File opened for modification C:\Windows\SysWOW64\sysload.com sysload.com -
Modifies Control Panel 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\ 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\locale = "00000401" 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\ sysload.com Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\locale = "00000401" sysload.com -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2836 sysload.com 4388 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4388 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe 2836 sysload.com -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4388 wrote to memory of 2836 4388 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe 82 PID 4388 wrote to memory of 2836 4388 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe 82 PID 4388 wrote to memory of 2836 4388 45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe"C:\Users\Admin\AppData\Local\Temp\45c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c.exe"1⤵
- Drops file in System32 directory
- Modifies Control Panel
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\SysWOW64\sysload.comC:\Windows\system32\sysload.com2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Modifies Control Panel
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2836
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
33KB
MD5d3aa3ce5454c73718cfea2bafcf15b1e
SHA10a1712c8f65a5044d5e95f02913a40e614dcda33
SHA25645c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c
SHA512866c98fb4589c1cab8351d6c639beb8d15547f05f2b6620efaad5eaffc226f9c18c64fd6afd954ef7ea08f1b91ade9adabb483301e76df9224a0d0adcedad6a1
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Filesize
33KB
MD5d3aa3ce5454c73718cfea2bafcf15b1e
SHA10a1712c8f65a5044d5e95f02913a40e614dcda33
SHA25645c63966e1b3fe737dcf952df0839a3b5f55d8ef5f72211f15b30f9cde35321c
SHA512866c98fb4589c1cab8351d6c639beb8d15547f05f2b6620efaad5eaffc226f9c18c64fd6afd954ef7ea08f1b91ade9adabb483301e76df9224a0d0adcedad6a1