Analysis Overview
SHA256
53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d
Threat Level: Known bad
The file 53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d was found to be: Known bad.
Malicious Activity Summary
Neshta family
Modifies system executable filetype association
Neshta
Detect Neshta payload
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-01 17:58
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-01 17:58
Reported
2022-10-01 18:11
Platform
win7-20220812-en
Max time kernel
151s
Max time network
45s
Command Line
Signatures
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
| N/A | N/A | \??\c:\d35bfab8f8f43e1a305bb296\update\update.exe | N/A |
Loads dropped DLL
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
| File opened for modification | C:\Windows\KB835221.log | \??\c:\d35bfab8f8f43e1a305bb296\update\update.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
"C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe"
\??\c:\d35bfab8f8f43e1a305bb296\update\update.exe
c:\d35bfab8f8f43e1a305bb296\update\update.exe
Network
Files
memory/1404-54-0x0000000075451000-0x0000000075453000-memory.dmp
\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
memory/2032-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
C:\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
memory/768-63-0x0000000000000000-mapping.dmp
\??\c:\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
\d35bfab8f8f43e1a305bb296\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
\??\c:\d35bfab8f8f43e1a305bb296\update\updatebr.inf
| MD5 | 05ffc8f5b730218b7348db3c5ea6e8ed |
| SHA1 | 96383215f5d7688e20e3e996015d0b87c962595c |
| SHA256 | fb35807db481a00babb273cf723e595ec2cd1ffb4f8f182d00bf973269d8e724 |
| SHA512 | 1093e07b4281d1c17ba239bb06abbe3b11513f9066bb37909d850fdf775b85be178ea14a6a622d42afb6fe3307e7862c4a3dd7a37249e491a14c44b283c30b1a |
\??\c:\d35bfab8f8f43e1a305bb296\Update\HDAUpdate_Srv2k3.inf
| MD5 | ea369c80464f2e87bbc909a53f001421 |
| SHA1 | 5bb3870ce1f1a444bd79166c7c1fbf2da5609211 |
| SHA256 | c2d97955c834fb6d97396731c66866c0498e0d8a3b18986280c2430a436be1c9 |
| SHA512 | ff0ae1590874497f3e9a1ca35fcf9968c63ad1c4690677570b224848bc8115b6508e3514ef12c8b3c45510231d86c82d03b050db33462260a59a58b38e1e5ca5 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-01 17:58
Reported
2022-10-01 18:12
Platform
win10v2004-20220812-en
Max time kernel
201s
Max time network
208s
Command Line
Signatures
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
| N/A | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\svchost.com | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
| File opened for modification | C:\Windows\KB835221.log | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
| Token: SeRestorePrivilege | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
| Token: SeShutdownPrivilege | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
| Token: SeSecurityPrivilege | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | \??\c:\0830ca32a1a6f9e7ea\update\update.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
"C:\Users\Admin\AppData\Local\Temp\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe"
\??\c:\0830ca32a1a6f9e7ea\update\update.exe
c:\0830ca32a1a6f9e7ea\update\update.exe
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| DE | 51.116.253.168:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | 14.110.152.52.in-addr.arpa | udp |
Files
memory/4436-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
C:\Users\Admin\AppData\Local\Temp\3582-490\53739795a0766186533b78e6ce794e99e7129d8e3750aaba0055cd9e78ee264d.exe
| MD5 | dfc381af1f1f93a79bc529d34a125a5e |
| SHA1 | 7cb1ac36cc4587d2bcedace853d350439f5522e1 |
| SHA256 | de0ad0623d5e4fcc691efa3ede5b141ffbb2f222755f768e79528dd53e208394 |
| SHA512 | 4a6274e2e36c4162e5ec47d46240d7eea48e1c8fb1bb81d8fc15c1cbd824f6bd5016d43f440b004e7dd29b8894928eb82c5b5cab4d0dd713fa095206208487af |
\??\c:\0830ca32a1a6f9e7ea\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
C:\0830ca32a1a6f9e7ea\update\update.exe
| MD5 | 8647f4bb5e731fca2a77b87a0f9fac04 |
| SHA1 | e1b27178e18a0398e1be57213f01e79ab2a7d1ac |
| SHA256 | 9ae9d0439b5616fea15d279821524e4a3669142667e43bf594ee5894aed096d4 |
| SHA512 | 4e903c66c7b4e675a74f8a177c6215c0be72292eaee49334522624461d68a09d9da59708191c6cb3362b989bdd9a78cc7f081f639a848214eca9e2c47ab3ebed |
memory/636-135-0x0000000000000000-mapping.dmp
\??\c:\0830ca32a1a6f9e7ea\update\updatebr.inf
| MD5 | 05ffc8f5b730218b7348db3c5ea6e8ed |
| SHA1 | 96383215f5d7688e20e3e996015d0b87c962595c |
| SHA256 | fb35807db481a00babb273cf723e595ec2cd1ffb4f8f182d00bf973269d8e724 |
| SHA512 | 1093e07b4281d1c17ba239bb06abbe3b11513f9066bb37909d850fdf775b85be178ea14a6a622d42afb6fe3307e7862c4a3dd7a37249e491a14c44b283c30b1a |
\??\c:\0830ca32a1a6f9e7ea\Update\HDAUpdate_Srv2k3.inf
| MD5 | ea369c80464f2e87bbc909a53f001421 |
| SHA1 | 5bb3870ce1f1a444bd79166c7c1fbf2da5609211 |
| SHA256 | c2d97955c834fb6d97396731c66866c0498e0d8a3b18986280c2430a436be1c9 |
| SHA512 | ff0ae1590874497f3e9a1ca35fcf9968c63ad1c4690677570b224848bc8115b6508e3514ef12c8b3c45510231d86c82d03b050db33462260a59a58b38e1e5ca5 |