Analysis Overview
SHA256
d4fb2e5b7f988b7db1d86bad83da846ebce7e923d94a30cb8e6649ce9e4cd5e2
Threat Level: Likely malicious
The file 840f3a90967edae5af243a9786d52ea0_NEAS was found to be: Likely malicious.
Malicious Activity Summary
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
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 06:37
Signatures
UPX packed file
| 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
Signatures
Blocklisted process makes network request
| 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 |
| 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 |
| N/A | N/A | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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 |
| N/A | N/A | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
Reads user/profile data of web browsers
UPX packed file
| 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
| 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)
| 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
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
Signatures
Blocklisted process makes network request
| 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 |
| 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 |
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
UPX packed file
| 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
| 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)
| 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 |
Suspicious use of WriteProcessMemory
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