Analysis Overview
SHA256
72ec93703d4e440114d578adf39f55d4f8933e76e62684e30923bfd93c1dd6cd
Threat Level: Likely benign
The file 8e53f2489c9adbaa02db230f8395a0aa was found to be: Likely benign.
Malicious Activity Summary
Drops file in Windows directory
Unsigned PE
Program crash
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Checks processor information in registry
Modifies registry class
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-04 06:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-04 06:21
Reported
2024-02-04 06:25
Platform
win10-20231215-en
Max time kernel
210s
Max time network
219s
Command Line
Signatures
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\INF\netsstpa.PNF | \??\c:\windows\system32\svchost.exe | N/A |
| File created | C:\Windows\INF\netrasa.PNF | \??\c:\windows\system32\svchost.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\regsvr32.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3196661410-1888440797-2304965013-1000_Classes\Local Settings | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Suspicious behavior: LoadsDriver
| 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 |
| 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 |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | \??\c:\windows\system32\svchost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Mozilla Firefox\firefox.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8e53f2489c9adbaa02db230f8395a0aa.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\8e53f2489c9adbaa02db230f8395a0aa.dll
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 192 -s 608
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Windows\System32\SystemSettingsBroker.exe
C:\Windows\System32\SystemSettingsBroker.exe -Embedding
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s RmSvc
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s SstpSvc
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s NetSetupSvc
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s RasMan
C:\Windows\System32\SystemSettingsBroker.exe
C:\Windows\System32\SystemSettingsBroker.exe -Embedding
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s RasMan
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.0.246661409\56843162" -parentBuildID 20221007134813 -prefsHandle 1684 -prefMapHandle 1640 -prefsLen 20747 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c4e3540d-f972-4dd1-892a-3cfc2f61c1bf} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 1764 1a8178d7558 gpu
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.1.78151064\961654116" -parentBuildID 20221007134813 -prefsHandle 2108 -prefMapHandle 2104 -prefsLen 20828 -prefMapSize 233444 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b8e88d8c-c848-4d48-ad3e-bbe4fd0a5343} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 2120 1a817440358 socket
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.2.1561002824\10378658" -childID 1 -isForBrowser -prefsHandle 2672 -prefMapHandle 2904 -prefsLen 20866 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {2c3b3c3d-e234-4e6a-b93e-67ae6b88fa4e} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 2928 1a81b9d6d58 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.3.381399486\82801388" -childID 2 -isForBrowser -prefsHandle 3296 -prefMapHandle 3260 -prefsLen 26109 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {a46a65db-8c26-4d71-94f5-e4a3fe3afc5d} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 3488 1a81c721158 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.4.1040933000\343032618" -childID 3 -isForBrowser -prefsHandle 3876 -prefMapHandle 3872 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c2e91f22-b2e2-425c-ab9e-0d35fd72b6ca} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 3880 1a81cdc6458 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.5.1986158966\899107581" -childID 4 -isForBrowser -prefsHandle 4688 -prefMapHandle 4656 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {10651896-ce8f-4703-b17f-b3580d735828} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 4696 1a81da7bc58 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.7.1270709548\225150846" -childID 6 -isForBrowser -prefsHandle 5028 -prefMapHandle 5032 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {fc3ed2b3-19ad-4dd8-b252-984d753813cd} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 5024 1a81da7a758 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.6.1434563910\90117689" -childID 5 -isForBrowser -prefsHandle 4836 -prefMapHandle 4840 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {4a317f50-49a2-45db-8cf9-4ddf5110bd46} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 4828 1a81da79e58 tab
C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2700.8.1531283957\467618536" -childID 7 -isForBrowser -prefsHandle 2932 -prefMapHandle 2620 -prefsLen 26343 -prefMapSize 233444 -jsInitHandle 1260 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {a70cdcce-e7fd-4477-a7d8-05c5fe0001ad} 2700 "\\.\pipe\gecko-crash-server-pipe.2700" 3476 1a81cdc5858 tab
C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
Network
| Country | Destination | Domain | Proto |
| GB | 23.44.234.16:80 | tcp | |
| US | 8.8.8.8:53 | contile.services.mozilla.com | udp |
| US | 8.8.8.8:53 | content-signature-2.cdn.mozilla.net | udp |
| US | 8.8.8.8:53 | push.services.mozilla.com | udp |
| US | 8.8.8.8:53 | shavar.services.mozilla.com | udp |
| US | 8.8.8.8:53 | firefox.settings.services.mozilla.com | udp |
| N/A | 127.0.0.1:49786 | tcp | |
| N/A | 127.0.0.1:49792 | tcp | |
| US | 8.8.8.8:53 | push.services.mozilla.com | udp |
| US | 8.8.8.8:53 | support.mozilla.org | udp |
| US | 8.8.8.8:53 | push.services.mozilla.com | udp |
| US | 8.8.8.8:53 | aus5.mozilla.org | udp |
| US | 8.8.8.8:53 | push.services.mozilla.com | udp |
Files
memory/192-0-0x0000000004610000-0x000000000486D000-memory.dmp
memory/192-1-0x0000000000A50000-0x0000000000A90000-memory.dmp
memory/192-2-0x0000000000A50000-0x0000000000A90000-memory.dmp
C:\Windows\INF\netrasa.PNF
| MD5 | 80648b43d233468718d717d10187b68d |
| SHA1 | a1736e8f0e408ce705722ce097d1adb24ebffc45 |
| SHA256 | 8ab9a39457507e405ade5ef9d723e0f89bc46d8d8b33d354b00d95847f098380 |
| SHA512 | eec0ac7e7abcf87b3f0f4522b0dd95c658327afb866ceecff3c9ff0812a521201d729dd71d43f3ac46536f8435d4a49ac157b6282077c7c1940a6668f3b3aea9 |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\datareporting\glean\db\data.safe.bin
| MD5 | 9433e12c65ed76357477c109b930650e |
| SHA1 | 42bc57e227c2a3ad64c4549a36c16d9702505590 |
| SHA256 | c587945e9105e19e49f3574cf24144dc1272726a99cc7437a91eaa4d3499bf6c |
| SHA512 | 73211839a1726a1a57802613181c87113cefe766e3a537fbe1dd64ca2163f8a466706797ee4c63a737b96685d937626acf217ba977869a027c5d8f248cee8cba |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\datareporting\glean\pending_pings\de87133a-900f-4f06-a3c8-09cb7a140801
| MD5 | 0b10c36144343d077b43e2736625d496 |
| SHA1 | 30ebd761a889e8c5e3591f63e775863d28b60227 |
| SHA256 | 9d62b2ab6385456248e539432dd5aa749cd0c29a694a2e4f5118eef30599bd29 |
| SHA512 | b2148e1fcbe9fb8fdb3917943a6deed1444baf4111e14d0d80fc0c78ab5b98b7ccf6f430c76c901fb503b63574002f1f14c9e037364301b1a540a1cccb7a518a |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\datareporting\glean\pending_pings\172bab67-f742-4187-af3b-1c4ef7db2acf
| MD5 | 9e01d65c536fbc9a8730acad0341f59b |
| SHA1 | 1bd3235e67a6f83ad01004ef4e530d33d6c283b9 |
| SHA256 | 8c5a289a199c7a10e22d61e7de228e3f4735458eb4e52b4244910b0ae01f2fe8 |
| SHA512 | 7859715cc39881409869c4577b7de828714edafd32a3b101292c604f46765a9da34ab6a4167b0cf6b5c6fe3e5f7bfaa8f3a98d1b3418cd2adea3bf87e40000b7 |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\sessionstore-backups\recovery.jsonlz4
| MD5 | d3e61b677da5dc7d565167a919b3bfea |
| SHA1 | 956bb2f67a073d2b6227f965ca6bbd92cd487a70 |
| SHA256 | 2ee903a791b144b30a082d5e72e25db013d62c801f86dd3b3c444db8ca8ceee5 |
| SHA512 | eac2cf91c935d15453dd2bcf23e9cf9ec61ae3ba67e2819946b7953cad2637367f6775902b829b3e185c1ee4ca7137347a2c69294319073f322b8298abae555c |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\prefs-1.js
| MD5 | bf74602c983eae79b976d7ccd24a1d21 |
| SHA1 | c771fc453da224e005a462da873a4928b7b1b0e0 |
| SHA256 | d0a851857d66bc8fb1e86d8dd9c1588356d1964850b3f7263d3281628436b05a |
| SHA512 | c5088a5e063844d56e49b7befc01793644042f89bf1697a7f4fb889152ade07b44ee1a33db68cf5573aecacae24eb0e0684a0b145ef3c4ed5bb0341e781149b6 |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\prefs-1.js
| MD5 | 86bbf5d50025a86db862e7e78fab5d26 |
| SHA1 | 4e84c8465ddbca501e8f1013607d96f9750e000e |
| SHA256 | 641e1635b37937da9ea327ffc1562498cafcf491dc82341a06c432363c709a50 |
| SHA512 | 689b4dff8e2ccc2ecb1e0bf6ecbfc6fee39b194651dbe522f33d9c0bef46673b991570173c53d17078a71533edcfb8351e3d687a20df4a4854b3d8b62257f274 |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\sessionstore-backups\recovery.jsonlz4
| MD5 | 499309aca9bd353f29a19fedfc1baafb |
| SHA1 | e859214c5bd9fc035de95ccf4da8fc8d25fe911a |
| SHA256 | f4e9127140f2a3651182d714bd31c5b7a523e3a8ba48b80181c945860956a3f2 |
| SHA512 | 6a68b28357cb5ab5cfb17f4623f64e6b4bd3c5e38f8fa1f54bf8ded271cbd77c778f48b6695001681d7ef81141e3a57d8e4cf5a94046b800daaf7a107725ab58 |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\sessionstore-backups\recovery.jsonlz4
| MD5 | 42f1f416b7ca604b4ed9e3ed7faed4a6 |
| SHA1 | 93f35948ac86f7bec113566afc42ffae2101eda3 |
| SHA256 | 93778633de12b83a91fe3833e0c392c2c67a7dcf9584981e48f6422fd51630dc |
| SHA512 | 41fcc469377a8949b475d237b77fb708d09a627240c15e306b6910d0c2292606fe88f482e7fe6ff802ef0b497ba6e2538e032c61113ec9527d248a2a1968e1eb |
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\7sk8fjhx.default-release\prefs-1.js
| MD5 | 070d8b1bd46b6fd7baf4ed95f92683a9 |
| SHA1 | 1772a3eccfcac98d37af76f439e140974a6e45df |
| SHA256 | 41371f674a3892662dec1a536fa0ef4476707cb4ce9c9790662613297584ec0f |
| SHA512 | c0390fdb2cd1182d4b91298adfb8a077b4bca9966254a7fc2ec60b19f56764ab5f6b68064590f62d9ca216521e3f9c88fb4ab83282f302b23f5918f5d24feef6 |