daabcbcb2c2c6e1554fa26e71b59589bed04a924e74607040225d538384d9f34

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2025 14:34

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General

Target

TsUsbRedirectionGroupPolicyExtension.dll
Size

13KB
MD5

d89cda3ff8427da82de6cce39008c5bc
SHA1

33889517517b8953707796d12d6907b039c715d1
SHA256

f44cc1e23d0d192dcfd84069b27704cd0b2a8e7720eee43656f57cb474433762
SHA512

4a73be7228960719236f39abc6dba7741498d3a3539f7bcc31b6d28a2574e41e4f85e6c2e0fbcffe9ba3b6a646fa3fa078adc0a53c46a4676b871fb92e11fe4f
SSDEEP

192:wWMcTgQEri3hPkpzRK7KVM6cqm+saSLysnlsam4oIWa+W8:wWpTgTu3ypzRo61mVag9Jm4oIWa+W

Score

8^/10

discovery persistence

Malware Config

Signatures

Downloads MZ/PE file 1 IoCs

flow	pid	Process
51	3068	Process not Found

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\GrpConv = "grpconv -o"	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\inf\TsUsbHubFilter.PNF	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3436	MicrosoftEdgeUpdate.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	runonce.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	runonce.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 5024	3956	rundll32.exe	87
PID 3956 wrote to memory of 5024	3956	rundll32.exe	87
PID 5024 wrote to memory of 452	5024	runonce.exe	89
PID 5024 wrote to memory of 452	5024	runonce.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\TsUsbRedirectionGroupPolicyExtension.dll,#1
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\system32\runonce.exe
  "C:\Windows\system32\runonce.exe" -r
  2⤵
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:5024
- - C:\Windows\System32\grpconv.exe
    "C:\Windows\System32\grpconv.exe" -o
    3⤵
    PID:452

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDUzNzQ0Mjg4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3436