Analysis Overview
SHA256
276d8a997289099d704a5ce94f749e743fd1cc94d8757230378156a7e1119d42
Threat Level: Likely malicious
The file cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics was found to be: Likely malicious.
Malicious Activity Summary
Blocklisted process makes network request
Deletes itself
Reads user/profile data of web browsers
UPX packed file
Loads dropped DLL
Executes dropped EXE
Writes to the Master Boot Record (MBR)
Enumerates connected drives
Adds Run key to start application
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Suspicious use of SetWindowsHookEx
Kills process with taskkill
Suspicious use of WriteProcessMemory
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-15 11:00
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-15 11:00
Reported
2024-05-15 11:03
Platform
win7-20240221-en
Max time kernel
142s
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 |
| 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\dayxkyh.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dayxkyh.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 |
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 |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\nvgrhmdyb\\buptq.utb\",crc32" | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\s: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\t: | \??\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) | \??\y: | \??\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) | \??\l: | \??\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) | \??\j: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\o: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\p: | \??\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) | \??\k: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\n: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\i: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\m: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\r: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\x: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\b: | \??\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 |
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 |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\SysWOW64\taskkill.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 |
| Token: SeDebugPrivilege | N/A | \??\c:\windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dayxkyh.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dayxkyh.exe "C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\dayxkyh.exe
C:\Users\Admin\AppData\Local\Temp\\dayxkyh.exe "C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\nvgrhmdyb\buptq.utb",crc32 C:\Users\Admin\AppData\Local\Temp\dayxkyh.exe
\??\c:\windows\SysWOW64\taskkill.exe
taskkill /f /im attrib.exe
Network
| Country | Destination | Domain | Proto |
| US | 98.126.15.172:803 | tcp | |
| US | 98.126.15.172:803 | tcp | |
| US | 98.126.15.170:3201 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 98.126.15.170:3201 | tcp | |
| US | 98.126.15.170:3201 | tcp | |
| US | 98.126.15.170:3201 | tcp |
Files
memory/2220-0-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2220-1-0x00000000002F0000-0x00000000002F1000-memory.dmp
memory/2220-3-0x0000000000400000-0x0000000000428000-memory.dmp
\Users\Admin\AppData\Local\Temp\dayxkyh.exe
| MD5 | 6ac0ce90d95e2def41ff4076bcad3cbe |
| SHA1 | 1cbc57733b53ac64b660ad2d092445ec3e411043 |
| SHA256 | 321d9ff56c8970a45e6a82542c49be7234201887943bc6363c3be572e34b63d4 |
| SHA512 | 1281d517646d7529c1768eaa80ebfb7c97b93299940ddcd72807fc96650fa542165f904bd4b188336d8f0d1a75f70e31d94abd9e0a1b85fe913f87eda29493c7 |
memory/2404-8-0x0000000000170000-0x0000000000198000-memory.dmp
memory/2860-9-0x00000000003A0000-0x00000000003A1000-memory.dmp
memory/2860-11-0x0000000000400000-0x0000000000428000-memory.dmp
\??\c:\nvgrhmdyb\buptq.utb
| MD5 | 2f53f49e01f09d6e6064871eec1955cd |
| SHA1 | a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f |
| SHA256 | 964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d |
| SHA512 | 2cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218 |
memory/2540-14-0x0000000010000000-0x0000000010022000-memory.dmp
memory/2540-15-0x0000000010000000-0x0000000010022000-memory.dmp
memory/2540-19-0x0000000010000000-0x0000000010022000-memory.dmp
memory/2540-20-0x0000000010000000-0x0000000010022000-memory.dmp
memory/2540-21-0x0000000010000000-0x0000000010022000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-15 11:00
Reported
2024-05-15 11:03
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
156s
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 |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rmvjo.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rmvjo.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 |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\dwrboxr\\hgwhu.ghh\",crc32" | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\a: | \??\c:\windows\SysWOW64\rundll32.exe | N/A |
| File opened (read-only) | \??\b: | \??\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 |
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 |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\SysWOW64\taskkill.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 |
| Token: SeDebugPrivilege | N/A | \??\c:\windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rmvjo.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rmvjo.exe "C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\rmvjo.exe
C:\Users\Admin\AppData\Local\Temp\\rmvjo.exe "C:\Users\Admin\AppData\Local\Temp\cc9f609742cf713f33b62b4671c46ad0_NeikiAnalytics.exe"
\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\dwrboxr\hgwhu.ghh",crc32 C:\Users\Admin\AppData\Local\Temp\rmvjo.exe
\??\c:\windows\SysWOW64\taskkill.exe
taskkill /f /im attrib.exe
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3872 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 98.126.15.172:803 | tcp | |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 98.126.15.170:3201 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 98.126.15.171:805 | tcp | |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 98.126.15.171:805 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 98.126.15.170:3201 | tcp | |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| FR | 216.58.213.74:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 74.213.58.216.in-addr.arpa | udp |
| US | 98.126.15.170:3201 | tcp | |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
| US | 98.126.15.170:3201 | tcp |
Files
memory/4900-0-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4900-1-0x0000000002220000-0x0000000002221000-memory.dmp
memory/4900-3-0x0000000000400000-0x0000000000428000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\rmvjo.exe
| MD5 | a5742092445feb833c2ef762189cd0b0 |
| SHA1 | ef3edae57d98a0902611366e0da8e1fb3b5fb25a |
| SHA256 | a3589c7419e3e1d32ec3489943541b0328ba6bb73a14b16a1d0d92fdbf14f3f2 |
| SHA512 | cbf2a2bb6d70ef8ce8229c9c2a754ab4b8df5b95d6c33be4f40b88e45403720addc556ce3f06824c85be68ab85bf0d4ae7d85bdf467b972dc5f1d988bd878e12 |
memory/220-8-0x0000000000400000-0x0000000000428000-memory.dmp
\??\c:\dwrboxr\hgwhu.ghh
| MD5 | 2f53f49e01f09d6e6064871eec1955cd |
| SHA1 | a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f |
| SHA256 | 964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d |
| SHA512 | 2cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218 |
memory/1964-11-0x0000000010000000-0x0000000010022000-memory.dmp
memory/1964-12-0x0000000010000000-0x0000000010022000-memory.dmp
memory/1964-16-0x0000000010000000-0x0000000010022000-memory.dmp
memory/1964-17-0x0000000010000000-0x0000000010022000-memory.dmp
memory/1964-18-0x0000000010000000-0x0000000010022000-memory.dmp