Analysis Overview
SHA256
5dc975b944afea6185e108a1e3e1f8629c8a70d3871b44647e0457f13e962380
Threat Level: Shows suspicious behavior
The file 4bd87d24066d91830ef74d3aa71a2630_NEAS was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Reads user/profile data of web browsers
Executes dropped EXE
Loads dropped DLL
Writes to the Master Boot Record (MBR)
Enumerates connected drives
Adds Run key to start application
Drops file in Program Files directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 01:59
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 01:59
Reported
2024-05-07 02:02
Platform
win7-20231129-en
Max time kernel
140s
Max time network
149s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.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\uzxqm.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\vrzoz\\fkehdnsin.exe \"c:\\Program Files\\vrzoz\\fkehdnsin.dll\",Group" | \??\c:\Program Files\vrzoz\fkehdnsin.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\vrzoz\fkehdnsin.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\Program Files\vrzoz | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
| File created | \??\c:\Program Files\vrzoz\fkehdnsin.dll | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
| File created | \??\c:\Program Files\vrzoz\fkehdnsin.exe | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
| File opened for modification | \??\c:\Program Files\vrzoz\fkehdnsin.exe | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\vrzoz\fkehdnsin.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\vrzoz\fkehdnsin.exe | N/A |
| N/A | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\vrzoz\fkehdnsin.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\uzxqm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uzxqm.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\uzxqm.exe
C:\Users\Admin\AppData\Local\Temp\\uzxqm.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
\??\c:\Program Files\vrzoz\fkehdnsin.exe
"c:\Program Files\vrzoz\fkehdnsin.exe" "c:\Program Files\vrzoz\fkehdnsin.dll",Group C:\Users\Admin\AppData\Local\Temp\uzxqm.exe
Network
| Country | Destination | Domain | Proto |
| US | 174.139.57.22:803 | tcp | |
| US | 174.139.57.22:803 | tcp | |
| US | 174.139.57.20:3201 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.20:3201 | tcp | |
| US | 174.139.57.20:3201 | tcp | |
| US | 174.139.57.20:3201 | tcp |
Files
memory/2380-0-0x0000000000400000-0x0000000000479D2E-memory.dmp
memory/2380-2-0x0000000000400000-0x0000000000479D2E-memory.dmp
\Users\Admin\AppData\Local\Temp\uzxqm.exe
| MD5 | 8a871167515f7dc340c459381f069f45 |
| SHA1 | 86e840873aba1c14f61685e8601250dcf094cd53 |
| SHA256 | 40ee1bf75cb81e7cd2964369b29b01dee2293ea3c8b892258411c1a1ffbfea6f |
| SHA512 | 7e63719fdff4643f32cea4ffd2b71de49be82871ef96d76bcd6c53ba997272399076292ef7ed6dd4af28a8fd68e1ce22b92ab9c34c75f1f9bf3d469500bd5b75 |
memory/1076-7-0x0000000000190000-0x000000000020A000-memory.dmp
memory/1420-8-0x0000000000400000-0x0000000000479D2E-memory.dmp
\Program Files\vrzoz\fkehdnsin.exe
| MD5 | 51138beea3e2c21ec44d0932c71762a8 |
| SHA1 | 8939cf35447b22dd2c6e6f443446acc1bf986d58 |
| SHA256 | 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124 |
| SHA512 | 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d |
memory/1420-15-0x0000000000400000-0x0000000000479D2E-memory.dmp
\??\c:\Program Files\vrzoz\fkehdnsin.dll
| MD5 | 78442b2f1caa189413fe121e674827d3 |
| SHA1 | 377fc5d32a26a91565c1330d30401713e8f63333 |
| SHA256 | 6c5698b39d2f1b007edef73bf73d33e01cf1aa5662ad99eaaca3b7b698a5a70c |
| SHA512 | b7840d0a757b585ce7dfd99f2f87cb43617b1dbf11315788c98429e0ee5520ed16a6edf2265261efae16e9c3416f553ded65ccd13605fb72a89e180c9fb07ded |
memory/2808-21-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2808-22-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2808-24-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2808-25-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2808-26-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2808-28-0x0000000010000000-0x0000000010054000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 01:59
Reported
2024-05-07 02:02
Platform
win10v2004-20240419-en
Max time kernel
140s
Max time network
135s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
| N/A | N/A | \??\c:\Program Files\csrwo\jne.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\csrwo\jne.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\Vicity = "c:\\Program Files\\csrwo\\jne.exe \"c:\\Program Files\\csrwo\\jneuq.dll\",Group" | \??\c:\Program Files\csrwo\jne.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\v: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\q: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\g: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\h: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\n: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\p: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\r: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\t: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\w: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\b: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\i: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\j: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\k: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\l: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\m: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\x: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\y: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\a: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\z: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\o: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\s: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\u: | \??\c:\Program Files\csrwo\jne.exe | N/A |
| File opened (read-only) | \??\e: | \??\c:\Program Files\csrwo\jne.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\csrwo\jne.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | \??\c:\Program Files\csrwo\jneuq.dll | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
| File created | \??\c:\Program Files\csrwo\jne.exe | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
| File opened for modification | \??\c:\Program Files\csrwo\jne.exe | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
| File opened for modification | \??\c:\Program Files\csrwo | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\csrwo\jne.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\csrwo\jne.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\csrwo\jne.exe | N/A |
| N/A | N/A | \??\c:\Program Files\csrwo\jne.exe | N/A |
| N/A | N/A | \??\c:\Program Files\csrwo\jne.exe | N/A |
| N/A | N/A | \??\c:\Program Files\csrwo\jne.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\csrwo\jne.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tpbpv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\tpbpv.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\tpbpv.exe
C:\Users\Admin\AppData\Local\Temp\\tpbpv.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"
\??\c:\Program Files\csrwo\jne.exe
"c:\Program Files\csrwo\jne.exe" "c:\Program Files\csrwo\jneuq.dll",Group C:\Users\Admin\AppData\Local\Temp\tpbpv.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 174.139.57.22:803 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 174.139.57.20:3201 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.21:805 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 174.139.57.21:805 | tcp | |
| US | 174.139.57.20:3201 | tcp | |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 174.139.57.20:3201 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.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 | 174.139.57.20:3201 | tcp |
Files
memory/3368-0-0x0000000000400000-0x0000000000479D2E-memory.dmp
memory/3368-2-0x0000000000400000-0x0000000000479D2E-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tpbpv.exe
| MD5 | 22c0f7feaee83421119abf987cc9f3b3 |
| SHA1 | 35b3a4d9d687c60a7ced6e888f84f377730e2123 |
| SHA256 | 995cdefce1e9c15563136a912676861157873461f3c1336fc4a6f9c9add31e94 |
| SHA512 | c7ae94090b16798389149569a4668c24e3e04ad0bf425e3e0272250ccd5062bbe84ce5cb633d77ba36cf72343a8bc706c44534e3c64fc212f36cf641e5dec8ec |
C:\Program Files\csrwo\jne.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
\??\c:\Program Files\csrwo\jneuq.dll
| MD5 | e65470d3de5a50c32675948b724fc96f |
| SHA1 | 7b2dcdbebcebadf9b43c68ca67bd53a59bc054c7 |
| SHA256 | 548f6b741b30679985bfe52cc4ab756ea311c1f9adde42d44f9eec27c0094caa |
| SHA512 | 79d4331db3989420b990acaf06140a95a06c91e4afa82c8bb2db1b766bc56bd2f8515888780b580b252a0774c8dc15f5b942438218a10da7f4ecf74dfffc02cb |
memory/2628-16-0x0000000010000000-0x0000000010054000-memory.dmp
memory/2628-14-0x0000000010000000-0x0000000010054000-memory.dmp
memory/1708-11-0x0000000000400000-0x0000000000479D2E-memory.dmp
memory/2628-17-0x0000000010000000-0x0000000010054000-memory.dmp