6916afd799307f0426724542f38f464ed508c2829804dcbb39921f552b3f506c

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 14:58

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General

Target
HuofengGameWorld.exe
Size 955KB
Sample240508-scksxaaa7w
SHA256 11456913c0f21eeeb78a85ba0e3f6d7e420d1da47774f53c20973ccb89c04584
MD5 f034531a701044350969d768a825b60c
SHA1 8763743d1d3e4c8a3cf151de06b34e67cec88465
SHA512 a58495b929556edc955449b02ce4f92f21a9022a08d5b557d0107125b5493ecdad040e9813e2973b4f7fb3ab97acf2b0f7d7bdb7229412da42e97d4396816fae
SSDEEP 24576:af/yTb1kKxB7aQhVWxlvosfW+DwZzOPdF5OFN/wFC5aX:af/gbec7aQme+DwM52+g5aX
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	HuofengGameWorld.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	HuofengGameWorld.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	HuofengGameWorld.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	HuofengGameWorld.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	hfgwupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	hfgwupdate.exe

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_GPU_RENDERING	HuofengGameWorld.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main	HuofengGameWorld.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl	HuofengGameWorld.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_GPU_RENDERING\HuofengGameWorld.exe = "1"	HuofengGameWorld.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	HuofengGameWorld.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\HuofengGameWorld.exe = "9999"	HuofengGameWorld.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2104	hfgwupdate.exe
Token: SeRestorePrivilege	2104	hfgwupdate.exe
Token: SeChangeNotifyPrivilege	2104	hfgwupdate.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2884	HuofengGameWorld.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2884	HuofengGameWorld.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2884	HuofengGameWorld.exe
2884	HuofengGameWorld.exe
2884	HuofengGameWorld.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29
PID 2884 wrote to memory of 2104	2884	HuofengGameWorld.exe	29

C:\Users\Admin\AppData\Local\Temp\HuofengGameWorld.exe
"C:\Users\Admin\AppData\Local\Temp\HuofengGameWorld.exe"
1⤵
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\hfgwupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\hfgwupdate.exe"
  2⤵
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2104-4-0x0000000000C10000-0x0000000000C11000-memory.dmp

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memory/2884-0-0x0000000001360000-0x0000000001361000-memory.dmp

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memory/2884-3-0x0000000001360000-0x0000000001361000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads