Analysis
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max time kernel
1790s -
max time network
1204s -
platform
windows11-21h2_x64 -
resource
win11-20240730-en -
resource tags
arch:x64arch:x86image:win11-20240730-enlocale:en-usos:windows11-21h2-x64system -
submitted
31-07-2024 15:00
Static task
static1
Behavioral task
behavioral1
Sample
1_setup-rem_ovl.exe
Resource
win10v2004-20240730-en
Behavioral task
behavioral2
Sample
1_setup-rem_ovl.exe
Resource
win11-20240730-en
General
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Target
1_setup-rem_ovl.exe
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Size
4.4MB
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MD5
58563fab8999891e35869b2cf6fdd67d
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SHA1
172706bd7e83f8e832af5214295c9931a4981abb
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SHA256
3a1d2daef3617f82a5d3f5a91f4f78d9ff5e2a2125f9f524d3d0bcd0bf3d43ed
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SHA512
705bf4179bc13793fdea11365f2b8f64d97db9e66536355e0e8927e6b27d1956b7fb98d87cbf890cff5e55bdf36a514eea9c90bff0567104d9195c4a527deaaa
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SSDEEP
98304:5Enod59JLovWfw6JzPocNK52w8dudhWhAKiVGRM:RDT948zA12w8du3oOVG
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 1 IoCs
Processes:
1_setup-rem_ovl.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1" 1_setup-rem_ovl.exe -
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 api.myip.com 2 ipinfo.io 6 api.myip.com 11 ipinfo.io -
Drops file in System32 directory 4 IoCs
Processes:
1_setup-rem_ovl.exedescription ioc Process File opened for modification C:\Windows\System32\GroupPolicy 1_setup-rem_ovl.exe File opened for modification C:\Windows\System32\GroupPolicy\gpt.ini 1_setup-rem_ovl.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 1_setup-rem_ovl.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 1_setup-rem_ovl.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
1_setup-rem_ovl.exepid Process 2224 1_setup-rem_ovl.exe 2224 1_setup-rem_ovl.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1_setup-rem_ovl.exe"C:\Users\Admin\AppData\Local\Temp\1_setup-rem_ovl.exe"1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:2224
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1460
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1940
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
127B
MD58ef9853d1881c5fe4d681bfb31282a01
SHA1a05609065520e4b4e553784c566430ad9736f19f
SHA2569228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2
SHA5125ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005