554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3

General

Target

554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe
Size

405KB
MD5

00de695ced3264cbd334cb3ddd8b3234
SHA1

71f620acc41aef0462acc4d568fc02599a9bde42
SHA256

554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3
SHA512

7c41a6cc3a3a89fdf6f763e1c6de9278d46e0ff2119690dd61414c1495471ab05fc3c7b0478d15057803e0b019c653c85c44447594a47e949d2ee6aa42e576c4
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2568	rundll32.exe
7	2568	rundll32.exe
8	2568	rundll32.exe
9	2568	rundll32.exe
10	2568	rundll32.exe
13	2568	rundll32.exe
14	2568	rundll32.exe
15	2568	rundll32.exe
17	2568	rundll32.exe
18	2568	rundll32.exe

Deletes itself 1 IoCs

Processes:

fgyqh.exe

pid process

2996 fgyqh.exe
Executes dropped EXE 1 IoCs

Processes:

fgyqh.exe

pid process

2996 fgyqh.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exerundll32.exe

pid process

1520 cmd.exe
1520 cmd.exe
2568 rundll32.exe
2568 rundll32.exe
2568 rundll32.exe
2568 rundll32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2996	fgyqh.exe

pid	process
2996	fgyqh.exe

pid	process
1520	cmd.exe
1520	cmd.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\brnupg\\lcgzs.dll\",Verify"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.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

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

2568 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

fgyqh.exe

description ioc process

File opened for modification \??\c:\Program Files\brnupg fgyqh.exe
File created \??\c:\Program Files\brnupg\lcgzs.dll fgyqh.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\brnupg	fgyqh.exe
File created	\??\c:\Program Files\brnupg\lcgzs.dll	fgyqh.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

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1516 PING.EXE

pid	process
1516	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe
2568	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2568 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exefgyqh.exe

pid process

360 554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe
2996 fgyqh.exe

description	pid	process
Token: SeDebugPrivilege	2568	rundll32.exe

pid	process
360	554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe
2996	fgyqh.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.execmd.exefgyqh.exe

description	pid	process	target process
PID 360 wrote to memory of 1520	360	554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe	cmd.exe
PID 360 wrote to memory of 1520	360	554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe	cmd.exe
PID 360 wrote to memory of 1520	360	554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe	cmd.exe
PID 360 wrote to memory of 1520	360	554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe	cmd.exe
PID 1520 wrote to memory of 1516	1520	cmd.exe	PING.EXE
PID 1520 wrote to memory of 1516	1520	cmd.exe	PING.EXE
PID 1520 wrote to memory of 1516	1520	cmd.exe	PING.EXE
PID 1520 wrote to memory of 1516	1520	cmd.exe	PING.EXE
PID 1520 wrote to memory of 2996	1520	cmd.exe	fgyqh.exe
PID 1520 wrote to memory of 2996	1520	cmd.exe	fgyqh.exe
PID 1520 wrote to memory of 2996	1520	cmd.exe	fgyqh.exe
PID 1520 wrote to memory of 2996	1520	cmd.exe	fgyqh.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe
PID 2996 wrote to memory of 2568	2996	fgyqh.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe
"C:\Users\Admin\AppData\Local\Temp\554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:360

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fgyqh.exe "C:\Users\Admin\AppData\Local\Temp\554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:1516

C:\Users\Admin\AppData\Local\Temp\fgyqh.exe
C:\Users\Admin\AppData\Local\Temp\\fgyqh.exe "C:\Users\Admin\AppData\Local\Temp\554e23a2acc2789058c991870cc3a97fcd83022b6c641ac9fac6ac51029485e3.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2996

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\Program Files\brnupg\lcgzs.dll",Verify C:\Users\Admin\AppData\Local\Temp\fgyqh.exe
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2568

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\??\c:\Program Files\brnupg\lcgzs.dll
Filesize
228KB

MD5
0d189c8e5a52f72636396c4cc5efba45

SHA1
77b04eb6d4042abcfa8f14c9493a1fdd6cde4b4c

SHA256
8e23bf1fec8245d00b68bb0958322033009754b17828182bed5cf5f690bc054f

SHA512
83f9eab26444bb15abd1a4ec9221d7c3b95562e21c8f31c01060fc81c010b7a27ff07350a61d53ec039986561e440d162fbd8f3ed3dee190012eb83b67153fbf

Download Submit
\Users\Admin\AppData\Local\Temp\fgyqh.exe
Filesize
405KB

MD5
a5a7728be8e7b19f32adf33c7e16f374

SHA1
50ce1990ab0b825ebea1237364104e447bf77b1e

SHA256
3b08da881b505bc86c9c4e32da1cabc14906b3efef6fc2eae799fb270c0f52e5

SHA512
c5af913eb5614a3b184ec49d71d60e2ade7b147e6a348afd9f6f91fbc5642bdbf569cbf37f760c4893c65cb4a4869f07b1c4a13697873804715f5c33d73b9d34

Download Submit
memory/360-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/360-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1520-7-0x00000000002E0000-0x0000000000344000-memory.dmp

Filesize
400KB

Download
memory/1520-6-0x00000000002E0000-0x0000000000344000-memory.dmp

Filesize
400KB

Download
memory/2568-17-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2568-18-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2568-20-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2996-9-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2996-11-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads