Analysis Overview
SHA256
b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d
Threat Level: Known bad
The file b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d was found to be: Known bad.
Malicious Activity Summary
Neshta family
Neshta
Detect Neshta payload
Modifies system executable filetype association
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Checks computer location settings
Enumerates connected drives
Drops file in Program Files directory
Drops file in Windows 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
2022-10-13 21:17
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-13 21:17
Reported
2022-10-14 02:23
Platform
win7-20220812-en
Max time kernel
96s
Max time network
104s
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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
| N/A | N/A | \??\c:\1c28db9f88b9d0211411a6968c36443e\update\update.exe | N/A |
Loads dropped DLL
Reads user/profile data of web browsers
Enumerates connected drives
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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
| File opened for modification | C:\Windows\Q327979.log | \??\c:\1c28db9f88b9d0211411a6968c36443e\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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
"C:\Users\Admin\AppData\Local\Temp\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe"
\??\c:\1c28db9f88b9d0211411a6968c36443e\update\update.exe
c:\1c28db9f88b9d0211411a6968c36443e\update\update.exe
Network
| Country | Destination | Domain | Proto |
| NL | 142.250.179.142:80 | tcp | |
| US | 172.67.151.226:80 | tcp | |
| US | 172.67.151.226:443 | tcp | |
| US | 172.67.151.226:443 | tcp |
Files
memory/1668-54-0x0000000075071000-0x0000000075073000-memory.dmp
\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
memory/1640-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
memory/1668-62-0x0000000002110000-0x000000000212E000-memory.dmp
memory/1668-63-0x0000000002110000-0x000000000212E000-memory.dmp
memory/1640-64-0x0000000001000000-0x000000000101E000-memory.dmp
\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
memory/1220-66-0x0000000000000000-mapping.dmp
C:\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\??\c:\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\1c28db9f88b9d0211411a6968c36443e\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\??\c:\1c28db9f88b9d0211411a6968c36443e\update\update.inf
| MD5 | ad0328202c8fb53f6c6fc13a4a204801 |
| SHA1 | e4b8e689fa23760a1e991777533fef7448b77321 |
| SHA256 | 06b88504861d7be892f7382af8bc380a8caa2d282d6b12219cee00c561292625 |
| SHA512 | 0a90cddaf7b05456cde7611b7e4b24f2da97501db8ba015f52593335901722cdd273653c9f4dc42e45b9405c466b55a372498ff5fa038f5fb89603e1df8b8455 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
memory/1640-75-0x0000000001000000-0x000000000101E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-13 21:17
Reported
2022-10-14 02:28
Platform
win10v2004-20220812-en
Max time kernel
150s
Max time network
182s
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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
| N/A | N/A | \??\c:\62357e4d7090dedcbddd5\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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
Reads user/profile data of web browsers
Enumerates connected drives
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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
| File opened for modification | C:\Windows\Q327979.log | \??\c:\62357e4d7090dedcbddd5\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\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | \??\c:\62357e4d7090dedcbddd5\update\update.exe | N/A |
| Token: SeRestorePrivilege | N/A | \??\c:\62357e4d7090dedcbddd5\update\update.exe | N/A |
| Token: SeShutdownPrivilege | N/A | \??\c:\62357e4d7090dedcbddd5\update\update.exe | N/A |
| Token: SeSecurityPrivilege | N/A | \??\c:\62357e4d7090dedcbddd5\update\update.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | \??\c:\62357e4d7090dedcbddd5\update\update.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
"C:\Users\Admin\AppData\Local\Temp\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe"
\??\c:\62357e4d7090dedcbddd5\update\update.exe
c:\62357e4d7090dedcbddd5\update\update.exe
Network
| Country | Destination | Domain | Proto |
| NL | 178.79.208.1:80 | tcp | |
| US | 8.8.8.8:53 | 97.97.242.52.in-addr.arpa | udp |
| NL | 104.80.224.44:443 | tcp | |
| US | 8.8.8.8:53 | 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
memory/1564-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\b190b4c25e78d93ed9fb8e5946c70b1752e71c5912f9f5cfa938505f4468dc6d.exe
| MD5 | 2711faf13bce14d0139a9f1669c27da3 |
| SHA1 | 7838088fb05b29e54869d7bc50c10f8536da6cb1 |
| SHA256 | d7d9c2a15cbb55f00c41ee55ff60eea6fc34b0f93b1e8506b660dd8e24a38b88 |
| SHA512 | 541654109ae633de49ca1688df7f85d87188a6559504e28be4b5e1e4939d1c8d4edd429b976de6694419bcd50eea4d03a1908cf8f93643b3d16e10c6cc3d687f |
memory/944-135-0x0000000000000000-mapping.dmp
C:\62357e4d7090dedcbddd5\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
\??\c:\62357e4d7090dedcbddd5\update\update.exe
| MD5 | 1ef493cfe59a498a5cbf1cb489f07726 |
| SHA1 | 7e4b7fbab01247cdac2936586148b902bf190347 |
| SHA256 | 357c8aa2b1507c02625fbfcd79a382c163b23281be49e753ffe6a522125c0cf3 |
| SHA512 | d84c3c26b3b346d6a04f716262436df0aedad94aba86b7db9a2d5d56475c233dc0f8cd3a36f653a301ad9106351ea0045b3dbea2f4e9662497b3263ce1cb42e1 |
memory/1564-138-0x0000000001000000-0x000000000101E000-memory.dmp
\??\c:\62357e4d7090dedcbddd5\update\update.inf
| MD5 | ad0328202c8fb53f6c6fc13a4a204801 |
| SHA1 | e4b8e689fa23760a1e991777533fef7448b77321 |
| SHA256 | 06b88504861d7be892f7382af8bc380a8caa2d282d6b12219cee00c561292625 |
| SHA512 | 0a90cddaf7b05456cde7611b7e4b24f2da97501db8ba015f52593335901722cdd273653c9f4dc42e45b9405c466b55a372498ff5fa038f5fb89603e1df8b8455 |
memory/1564-140-0x0000000001000000-0x000000000101E000-memory.dmp