Malware Analysis Report

2025-08-10 18:07

Sample ID 240507-hdkt7agb87
Target 840f3a90967edae5af243a9786d52ea0_NEAS
SHA256 d4fb2e5b7f988b7db1d86bad83da846ebce7e923d94a30cb8e6649ce9e4cd5e2
Tags
upx bootkit persistence spyware stealer
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

d4fb2e5b7f988b7db1d86bad83da846ebce7e923d94a30cb8e6649ce9e4cd5e2

Threat Level: Likely malicious

The file 840f3a90967edae5af243a9786d52ea0_NEAS was found to be: Likely malicious.

Malicious Activity Summary

upx bootkit persistence spyware stealer

Blocklisted process makes network request

Deletes itself

UPX packed file

Reads user/profile data of web browsers

Loads dropped DLL

Executes dropped EXE

Writes to the Master Boot Record (MBR)

Enumerates connected drives

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-07 06:37

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 06:37

Reported

2024-05-07 06:39

Platform

win7-20231129-en

Max time kernel

147s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Micro = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\qgwyc\\xqmqo.dll\",method" \??\c:\windows\SysWOW64\rundll32.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\m: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\p: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\t: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\u: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\v: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\b: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\l: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\q: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\r: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\e: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\g: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\o: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\y: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\z: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\i: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\k: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\j: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\n: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\s: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\w: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\x: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\a: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\h: \??\c:\windows\SysWOW64\rundll32.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 \??\c:\windows\SysWOW64\rundll32.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification \??\c:\Program Files\qgwyc C:\Users\Admin\AppData\Local\Temp\jdaug.exe N/A
File created \??\c:\Program Files\qgwyc\xqmqo.dll C:\Users\Admin\AppData\Local\Temp\jdaug.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 \??\c:\windows\SysWOW64\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString \??\c:\windows\SysWOW64\rundll32.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A \??\c:\windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1420 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe C:\Windows\SysWOW64\cmd.exe
PID 2996 wrote to memory of 2224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2996 wrote to memory of 2224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2996 wrote to memory of 2224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2996 wrote to memory of 2224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2996 wrote to memory of 1448 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\jdaug.exe
PID 2996 wrote to memory of 1448 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\jdaug.exe
PID 2996 wrote to memory of 1448 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\jdaug.exe
PID 2996 wrote to memory of 1448 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\jdaug.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe
PID 1448 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\jdaug.exe \??\c:\windows\SysWOW64\rundll32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe

"C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jdaug.exe "C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1 -n 2

C:\Users\Admin\AppData\Local\Temp\jdaug.exe

C:\Users\Admin\AppData\Local\Temp\\jdaug.exe "C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

\??\c:\windows\SysWOW64\rundll32.exe

c:\windows\system32\rundll32.exe "c:\Program Files\qgwyc\xqmqo.dll",method C:\Users\Admin\AppData\Local\Temp\jdaug.exe

Network

Country Destination Domain Proto
US 107.163.56.246:18530 107.163.56.246 tcp
US 107.163.56.251:6658 tcp
US 107.163.56.243:18963 tcp
US 107.163.56.243:18963 tcp
US 107.163.56.243:18963 tcp
US 107.163.56.243:18963 tcp
US 107.163.56.251:6658 tcp
US 107.163.56.251:6658 tcp
US 107.163.56.251:6658 tcp

Files

memory/1420-0-0x0000000000400000-0x000000000044A000-memory.dmp

memory/1420-2-0x0000000000400000-0x000000000044A000-memory.dmp

\Users\Admin\AppData\Local\Temp\jdaug.exe

MD5 a35f775bb194484fe22c04d4ae8e32d0
SHA1 8785120a5bf9cc4ff9f34360669b4c1e72b08bd0
SHA256 c5414ad837e729d442ed0e9badf2f1d8d604d8e72ed89addd719ef8da5bdf3f6
SHA512 9746513be2354b9c36780bc2653acc6e7d1de74b6d4559fad80f0255592208e4ceb3458852baf1c7bf706226df52c87c9c58aa87059e56e320eeaef3b606ff06

memory/1448-9-0x0000000000400000-0x000000000044A000-memory.dmp

\??\c:\Program Files\qgwyc\xqmqo.dll

MD5 a0002bd8d5fd7b68d0b5cfc59272cb09
SHA1 d81cde75f6ff06fb256e119038d1e0c055c10fa1
SHA256 ba4df777bbf1399c105aa7a7e89af777f258319e20d2096bcd0999708fc2037b
SHA512 20ddc3193ed59e479d2fb5b6a285621e17c39852a323d26767054953c9e94dcbcc3d33da609dd3853dab9688e13a53c2a5cd9737d4e06c85edee2a47e4718c6a

memory/2260-17-0x0000000010000000-0x0000000010056000-memory.dmp

memory/2260-15-0x0000000010000000-0x0000000010056000-memory.dmp

memory/2260-18-0x0000000010050000-0x0000000010051000-memory.dmp

memory/2260-19-0x0000000010000000-0x0000000010056000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 06:37

Reported

2024-05-07 06:39

Platform

win10v2004-20240419-en

Max time kernel

133s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\vbpkk.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\vbpkk.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Micro = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\mkfmp\\lzast.dll\",method" \??\c:\windows\SysWOW64\rundll32.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\p: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\s: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\v: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\w: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\x: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\g: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\i: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\l: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\m: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\q: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\u: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\z: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\a: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\h: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\k: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\n: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\r: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\y: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\e: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\j: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\t: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\b: \??\c:\windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\o: \??\c:\windows\SysWOW64\rundll32.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 \??\c:\windows\SysWOW64\rundll32.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification \??\c:\Program Files\mkfmp C:\Users\Admin\AppData\Local\Temp\vbpkk.exe N/A
File created \??\c:\Program Files\mkfmp\lzast.dll C:\Users\Admin\AppData\Local\Temp\vbpkk.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 \??\c:\windows\SysWOW64\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString \??\c:\windows\SysWOW64\rundll32.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A
N/A N/A \??\c:\windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A \??\c:\windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\vbpkk.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe

"C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vbpkk.exe "C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1 -n 2

C:\Users\Admin\AppData\Local\Temp\vbpkk.exe

C:\Users\Admin\AppData\Local\Temp\\vbpkk.exe "C:\Users\Admin\AppData\Local\Temp\840f3a90967edae5af243a9786d52ea0_NEAS.exe"

\??\c:\windows\SysWOW64\rundll32.exe

c:\windows\system32\rundll32.exe "c:\Program Files\mkfmp\lzast.dll",method C:\Users\Admin\AppData\Local\Temp\vbpkk.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 107.163.56.246:18530 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 107.163.56.251:6658 tcp
US 8.8.8.8:53 251.56.163.107.in-addr.arpa udp
US 107.163.56.243:18963 107.163.56.243 tcp
US 107.163.56.243:18963 107.163.56.243 tcp
US 8.8.8.8:53 243.56.163.107.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 107.163.56.243:18963 tcp
US 8.8.8.8:53 209.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 107.163.56.251:6658 tcp
US 107.163.56.251:6658 tcp

Files

memory/1424-0-0x0000000000400000-0x000000000044A000-memory.dmp

memory/1424-2-0x0000000000400000-0x000000000044A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\vbpkk.exe

MD5 9874475a6f116ddd2d2e1143f65070e3
SHA1 7a34d2ebe72c79a43c26e2a5f1ce3c7d96f28e3e
SHA256 cbc79febb583c5f7684e902cbde5587a4517c3adf37a6ca2c9d12b41cc31b9be
SHA512 b8a38c93b6634eca32cefe4c5f039bfca3123a08480ca9adad913dcbe64c0ff054e45f6eb87132d220aa2bae8de35ecc56d385d379a8deefeb98934718c27813

memory/4468-6-0x0000000000400000-0x000000000044A000-memory.dmp

memory/4468-9-0x0000000000400000-0x000000000044A000-memory.dmp

\??\c:\Program Files\mkfmp\lzast.dll

MD5 3ea3dc7955100908e1423bbeb89b761b
SHA1 400896ff76285ec7e0586aa07f534d8d08366177
SHA256 1e81ecb7d2132a7785e076a0d55509c6ea5ac229c1cc8f8c137d997eeff15b16
SHA512 75677aedf283e1f9dd7850ea28aeb45634977b6c4dad59fe263ff2fea8efe6694bfdde60f98803af4ab48203691812f4710f114f65b8ae4fb9c73ca1373dc483

memory/2296-12-0x0000000010000000-0x0000000010056000-memory.dmp

memory/2296-15-0x0000000010050000-0x0000000010051000-memory.dmp

memory/2296-14-0x0000000010000000-0x0000000010056000-memory.dmp

memory/2296-16-0x0000000010000000-0x0000000010056000-memory.dmp