20a45fa6c17c9e8461522886352a440c2c00a6a16075004f3d731876631c3696

Analysis

max time kernel
140s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2024, 20:28

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General

Target

LangHua.exe
Size

2.1MB
MD5

4d1770fca9559746469e30933b4d83fd
SHA1

f0b0a86cb17f06aaa808e073e5e4c25a55057e1b
SHA256

d50be917d4aa3352b4adbed554517f1a473bda771c6e70cdc0431ebb08fa3ca5
SHA512

f5ec293042bbd838f283f89772375c33236cb0777490722fd1eb394d60677523c80eeb9f7ba742c919806d42cbb2922824130e821b65bb203e13e95257d8bf02
SSDEEP

49152:/E/tUmAN3BPMm19duFeUFmodToFbzeGVuv7dnMmM15UuLWy/zc:/E/toBPdEToFveGVKdni15UuLvA

Score

8^/10

bootkit discovery evasion persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3220	Netsh.exe
916	Netsh.exe
3580	Netsh.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	LangHua.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	Netsh.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LangHua.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	QKDown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Netsh.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\IESettingSync	LangHua.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	LangHua.exe
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	LangHua.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	LangHua.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: 33	2032	LangHua.exe
Token: SeIncBasePriorityPrivilege	2032	LangHua.exe
Token: 33	2032	LangHua.exe
Token: SeIncBasePriorityPrivilege	2032	LangHua.exe
Token: 33	2032	LangHua.exe
Token: SeIncBasePriorityPrivilege	2032	LangHua.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2032	LangHua.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2032	LangHua.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2032	LangHua.exe
2032	LangHua.exe
2032	LangHua.exe
2032	LangHua.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1036	2032	LangHua.exe	91
PID 2032 wrote to memory of 1036	2032	LangHua.exe	91
PID 2032 wrote to memory of 1036	2032	LangHua.exe	91
PID 1036 wrote to memory of 3580	1036	QKDown.exe	92
PID 1036 wrote to memory of 3580	1036	QKDown.exe	92
PID 1036 wrote to memory of 3580	1036	QKDown.exe	92
PID 1036 wrote to memory of 916	1036	QKDown.exe	93
PID 1036 wrote to memory of 916	1036	QKDown.exe	93
PID 1036 wrote to memory of 916	1036	QKDown.exe	93
PID 1036 wrote to memory of 3220	1036	QKDown.exe	94
PID 1036 wrote to memory of 3220	1036	QKDown.exe	94
PID 1036 wrote to memory of 3220	1036	QKDown.exe	94

C:\Users\Admin\AppData\Local\Temp\LangHua.exe
"C:\Users\Admin\AppData\Local\Temp\LangHua.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\QKDown.exe
  "C:\Users\Admin\AppData\Local\Temp\QKDown.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1036
- - C:\Windows\SysWOW64\Netsh.exe
    Netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\QKDown.exe" PPVOD ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3580
- - C:\Windows\SysWOW64\Netsh.exe
    Netsh firewall add portopening TCP 14419 KwMusic
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:916
- - C:\Windows\SysWOW64\Netsh.exe
    Netsh firewall add portopening UDP 14419 KwMusic
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\config.ini

Filesize
853B

MD5
364e327586e2420be0a4035083429f9c

SHA1
6db3656e512f071a08a97f0fb0ea2b531cceb8b4

SHA256
75b5854638b58a1b1f909499b6362b5c5a8610eeca83a39659864d2db8525a32

SHA512
ff675f0c683d598944fe3c459b497ea7e76970cfa65f852c63e49e974d6bfe55ea867da5de558f7a2dcf37881154a7e9d03a0087b21b224f69ed87e60b2e5d1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\setup.xml

Filesize
1KB

MD5
ceea80c0a46c69442f444180f63a4224

SHA1
f05994e199abe27e52fa49505f921afb2951d14c

SHA256
8b4e09cdbcd73736c1ded15d8809f09a0eacd9695a65ea5d483981cc3c05ddd1

SHA512
893334dfbde58260dc430841d2fcb8435fc41bbf5ab646ef47bcec71210a0cda38b65ca81a02e2500aa46412cdf9f6dde2fdc801cd354f2beb828b667462902f

Download Submit
C:\Users\Admin\AppData\Local\Temp\setup.xml

Filesize
1KB

MD5
0557ab52a50ed93293a8859b4212ec73

SHA1
ee7ec32cbf9a699a6460253bc8d1bcc906ac4439

SHA256
fa5bb7b3a9599dd614268039d2d6636da2f60dd9f92f7c67ccf14d4e3fad25fe

SHA512
be5336155a38632d1428305a675ab3d75f8b22e2ee23d8f77c765792d2792a33bbefa1054015696ef0a580863c86c25ceae1e3a2bba0ffe6e81f6aabee67b312

Download Submit
memory/1036-232-0x0000000000570000-0x0000000000580000-memory.dmp

Filesize
64KB

Download
memory/1036-240-0x0000000002130000-0x0000000002143000-memory.dmp

Filesize
76KB

Download
memory/2032-0-0x00000000008A0000-0x00000000008B3000-memory.dmp

Filesize
76KB

Download
memory/2032-1-0x0000000000C60000-0x0000000000C77000-memory.dmp

Filesize
92KB

Download
memory/2032-2-0x0000000000C40000-0x0000000000C53000-memory.dmp

Filesize
76KB

Download
memory/2032-7-0x000000000049C000-0x000000000049D000-memory.dmp

Filesize
4KB

Download
memory/2032-54-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download
memory/2032-244-0x00000000055C0000-0x00000000055DC000-memory.dmp

Filesize
112KB

Download
memory/2032-253-0x0000000000400000-0x0000000000666000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads