Analysis Overview
SHA256
87cd0c1f30ca3079911594ce5c5f5c527c3adbdcd1d8d2d7187fa1f9884f0a25
Threat Level: Shows suspicious behavior
The file 589868fd7df39cf040cf813672452720_NEAS was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Executes dropped EXE
Reads user/profile data of web browsers
Deletes itself
Writes to the Master Boot Record (MBR)
Adds Run key to start application
Enumerates connected drives
Drops file in Program Files directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 03:14
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 03:14
Reported
2024-05-07 03:16
Platform
win7-20240221-en
Max time kernel
147s
Max time network
135s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.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:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\fwjdi\\evskhhe.exe \"c:\\Program Files\\fwjdi\\evskhhe.dll\",Compliance" | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
Enumerates connected drives
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\Program Files\fwjdi | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
| File created | \??\c:\Program Files\fwjdi\evskhhe.dll | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
| File created | \??\c:\Program Files\fwjdi\evskhhe.exe | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
| File opened for modification | \??\c:\Program Files\fwjdi\evskhhe.exe | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\fwjdi\evskhhe.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:\Program Files\fwjdi\evskhhe.exe | N/A |
| N/A | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\fwjdi\evskhhe.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jtsibgxko.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe
C:\Users\Admin\AppData\Local\Temp\\jtsibgxko.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
\??\c:\Program Files\fwjdi\evskhhe.exe
"c:\Program Files\fwjdi\evskhhe.exe" "c:\Program Files\fwjdi\evskhhe.dll",Compliance C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe
Network
| Country | Destination | Domain | Proto |
| US | 107.163.56.241:18530 | 107.163.56.241 | tcp |
| US | 107.163.43.144:12388 | 107.163.43.144 | tcp |
| US | 107.163.56.251:6658 | tcp | |
| US | 107.163.56.240:18963 | tcp | |
| US | 107.163.56.240:18963 | tcp | |
| US | 107.163.56.240:18963 | tcp | |
| US | 107.163.56.240:18963 | tcp | |
| US | 107.163.56.251:6658 | tcp | |
| US | 107.163.56.251:6658 | tcp | |
| US | 107.163.56.251:6658 | tcp |
Files
memory/1740-0-0x0000000000400000-0x000000000044D01D-memory.dmp
memory/1740-1-0x0000000000020000-0x0000000000021000-memory.dmp
memory/1740-3-0x0000000000400000-0x000000000044D01D-memory.dmp
\Users\Admin\AppData\Local\Temp\jtsibgxko.exe
| MD5 | 63d97710da699b1bedf1b9b3d9961829 |
| SHA1 | f6a9567903e11658b3f7465444627c3552b0ed29 |
| SHA256 | a516478d1dec77f65cb769af9c27b13fa7e706effac88a892c2682413a1b4771 |
| SHA512 | b6afb00fce7eb69fcf463691459d8fc9673a48d1759e1e29757409f34b832275b413f2011d0961f4811204654243d04cc3cf004a74dfa5e6ee941ac3f7d3ab6a |
memory/2268-7-0x0000000002270000-0x00000000022BE000-memory.dmp
memory/2268-8-0x0000000002270000-0x00000000022BE000-memory.dmp
memory/2492-10-0x0000000000400000-0x000000000044D01D-memory.dmp
memory/2492-11-0x0000000000020000-0x0000000000021000-memory.dmp
\Program Files\fwjdi\evskhhe.exe
| MD5 | 51138beea3e2c21ec44d0932c71762a8 |
| SHA1 | 8939cf35447b22dd2c6e6f443446acc1bf986d58 |
| SHA256 | 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124 |
| SHA512 | 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d |
memory/2492-19-0x0000000000400000-0x000000000044D01D-memory.dmp
\??\c:\Program Files\fwjdi\evskhhe.dll
| MD5 | 92cec5cfa6c83928f3dfc489fd0a02f7 |
| SHA1 | 108c2cb2989673902dc3ef4e9a92da9d964bde90 |
| SHA256 | 10de310541c652ba838016de86080a48d7a7c49717dffa1c0d3bfc49fa3859e5 |
| SHA512 | ed3486993f4d12bc8014f195b7fed2fca7ed6263a89591ff9e279717c0cfa46961a7d773f5620043c6a8a341d94817a2dbe16b10c765f485494a2f836957dc0d |
memory/2596-25-0x0000000010000000-0x000000001004F000-memory.dmp
memory/2596-28-0x0000000010000000-0x000000001004F000-memory.dmp
memory/2596-27-0x0000000010000000-0x000000001004F000-memory.dmp
memory/2596-29-0x0000000000110000-0x0000000000111000-memory.dmp
memory/2596-30-0x0000000010000000-0x000000001004F000-memory.dmp
memory/2596-33-0x0000000010000000-0x000000001004F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 03:14
Reported
2024-05-07 03:16
Platform
win10v2004-20240419-en
Max time kernel
143s
Max time network
147s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
| N/A | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\wtyxl\\fje.exe \"c:\\Program Files\\wtyxl\\fjehz.dll\",Compliance" | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\n: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\s: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\u: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\y: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\h: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\i: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\k: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\l: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\b: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\g: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\x: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\w: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\a: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\e: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\j: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\q: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\t: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\v: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\z: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\m: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\o: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\p: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| File opened (read-only) | \??\r: | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\Program Files\wtyxl\fje.exe | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
| File opened for modification | \??\c:\Program Files\wtyxl | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
| File created | \??\c:\Program Files\wtyxl\fjehz.dll | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
| File created | \??\c:\Program Files\wtyxl\fje.exe | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\wtyxl\fje.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:\Program Files\wtyxl\fje.exe | N/A |
| N/A | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| N/A | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
| N/A | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\wtyxl\fje.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hfuts.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\hfuts.exe
C:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
\??\c:\Program Files\wtyxl\fje.exe
"c:\Program Files\wtyxl\fje.exe" "c:\Program Files\wtyxl\fjehz.dll",Compliance C:\Users\Admin\AppData\Local\Temp\hfuts.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 107.163.56.241:18530 | tcp | |
| US | 20.231.121.79:80 | tcp | |
| US | 107.163.43.144:12388 | tcp | |
| US | 107.163.56.251:6658 | tcp | |
| US | 8.8.8.8:53 | 251.56.163.107.in-addr.arpa | udp |
| US | 107.163.56.240:18963 | 107.163.56.240 | tcp |
| US | 107.163.56.240:18963 | 107.163.56.240 | tcp |
| US | 8.8.8.8:53 | 240.56.163.107.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 107.163.56.240:18963 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.251.17.2.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 | 107.163.56.251:6658 | tcp | |
| US | 107.163.56.251:6658 | tcp |
Files
memory/1980-0-0x0000000000400000-0x000000000044D01D-memory.dmp
memory/1980-1-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/1980-4-0x0000000000400000-0x000000000044D01D-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hfuts.exe
| MD5 | cd5c092d3a7ec094712a25a04a1272ba |
| SHA1 | b075f3bc65ebc1d4b2d2d72e88df01d4d7cf1a35 |
| SHA256 | 9b607f1da62559ea147ed88b8304aabffe34e43ae85183d44c578c37f29a2df3 |
| SHA512 | fc8d8ed28ac9f0729c2361e6f0d8ac0f95eed8ff0126f701347cc525cdb9b8a026d3a835cddc592a1b015b83a30b3a5a4090330111399bdf2dfa7df18e056d4c |
memory/2912-9-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2912-8-0x0000000000400000-0x000000000044D01D-memory.dmp
C:\Program Files\wtyxl\fje.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
\??\c:\Program Files\wtyxl\fjehz.dll
| MD5 | 5701cccdce33aed113fbe258f6681eb0 |
| SHA1 | 081f73a990a4a4c7c6624dbcc9884a488c4142c2 |
| SHA256 | 1f5de6132f84337e0bfdd1c080fea9cda66e4effc082a83b8734a817279440fe |
| SHA512 | 4cc4fe94ec98ca6de0b27b1490f3414f3b27d5c561207df23b0c9e85836af23f32dbb33b8b2c612fe06109edf86655877347541f7d48a70488f7e7fadb2fb5e5 |
memory/4520-19-0x0000000010000000-0x000000001004F000-memory.dmp
memory/4520-20-0x0000000001350000-0x0000000001351000-memory.dmp
memory/2912-16-0x0000000000400000-0x000000000044D01D-memory.dmp
memory/4520-21-0x0000000010000000-0x000000001004F000-memory.dmp
memory/4520-23-0x0000000010000000-0x000000001004F000-memory.dmp
memory/4520-25-0x0000000010000000-0x000000001004F000-memory.dmp
memory/4520-30-0x0000000010000000-0x000000001004F000-memory.dmp