Analysis Overview
SHA256
5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b
Threat Level: Known bad
The file 5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe was found to be: Known bad.
Malicious Activity Summary
Neshta
Detect Neshta payload
Neshta family
Executes dropped EXE
Checks computer location settings
Reads user/profile data of web browsers
Loads dropped DLL
Modifies system executable filetype association
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-08 01:29
Signatures
Detect Neshta payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Neshta family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-08 01:29
Reported
2024-04-08 01:31
Platform
win10v2004-20240226-en
Max time kernel
129s
Max time network
149s
Command Line
Signatures
Detect Neshta payload
| 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 |
Neshta
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | N/A |
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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5048 wrote to memory of 2640 | N/A | C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe |
| PID 5048 wrote to memory of 2640 | N/A | C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
"C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
Network
| Country | Destination | Domain | Proto |
| DE | 89.58.15.141:9001 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| DE | 178.254.12.193:9001 | tcp | |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| DE | 178.250.189.15:990 | tcp | |
| N/A | 127.0.0.1:50272 | tcp | |
| N/A | 127.0.0.1:50276 | tcp | |
| NZ | 60.234.200.12:9001 | tcp | |
| US | 8.8.8.8:53 | 15.189.250.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| FI | 65.21.94.13:5443 | tcp | |
| NL | 45.66.35.11:443 | tcp | |
| DE | 159.69.21.196:8443 | tcp | |
| US | 15.204.142.37:443 | tcp | |
| US | 8.8.8.8:53 | 11.35.66.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.94.21.65.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.21.69.159.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 37.142.204.15.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
| MD5 | dcb04bad2eb62d8e258a8038e741c554 |
| SHA1 | ba64b4b7134d9ccda5cdd3624cdc898e3778fb7f |
| SHA256 | 33049016dd8985e97e69d89cad74b59b06488310c0be86d0f83b10ee096b7875 |
| SHA512 | 8f0fb5a453030850c37e6f3b8f94bc0eb04512c4810dfc5499289dc74b1d02c38e639947245e996cfb3398449395d3ba59f1513f5a9c3283dc4d268f0d7265c5 |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
| MD5 | 8ffc3bdf4a1903d9e28b99d1643fc9c7 |
| SHA1 | 919ba8594db0ae245a8abd80f9f3698826fc6fe5 |
| SHA256 | 8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6 |
| SHA512 | 0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427 |
memory/5048-97-0x0000000000400000-0x000000000041B000-memory.dmp
C:\Users\Admin\AppData\Roaming\tor\cached-microdesc-consensus.tmp
| MD5 | 76129b0242ac64dce87fb8de309df8ca |
| SHA1 | c5b5aa6a7704fc20222d06ed851ca97693b04a6c |
| SHA256 | fcca8d181451bab1df322ede8f0ae6ba0d508490d22d9f6ea54aca1eb5e7c81f |
| SHA512 | 19aade62bde4153c0cdae6b5d2b007641c5cbecb7a295c62a019bcb00ecf95f068ee5301250a58682c0cdf4ed4db11daf2f5a819d9a89711e233f048d3da5cd0 |
memory/5048-106-0x0000000000400000-0x000000000041B000-memory.dmp
memory/5048-109-0x0000000000400000-0x000000000041B000-memory.dmp
C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new
| MD5 | f74f5bedf3ba3aa426f64ddca22024ef |
| SHA1 | 63f391dbffbf33eba3e6a67e8dac6bf34a103416 |
| SHA256 | 2320bcfb3a3510f43e631e0e5e9437250be2b29974183a4df87a9a36dc6a670f |
| SHA512 | d425ba1252fae448998193112f94e5a654832c3d366cfe6a637d513db8692ea52c7794385341969f3102d5cb46a75174d4ad4a86b024a0db600090a118bde14f |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-08 01:29
Reported
2024-04-08 01:31
Platform
win7-20240215-en
Max time kernel
122s
Max time network
150s
Command Line
Signatures
Detect Neshta payload
| 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 |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | N/A |
Loads dropped DLL
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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.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\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
"C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
Network
| Country | Destination | Domain | Proto |
| PT | 94.46.171.221:9001 | tcp | |
| N/A | 127.0.0.1:49201 | tcp | |
| N/A | 127.0.0.1:49205 | tcp | |
| DE | 46.4.57.75:8443 | tcp | |
| DE | 82.149.227.126:443 | tcp |
Files
\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
| MD5 | dcb04bad2eb62d8e258a8038e741c554 |
| SHA1 | ba64b4b7134d9ccda5cdd3624cdc898e3778fb7f |
| SHA256 | 33049016dd8985e97e69d89cad74b59b06488310c0be86d0f83b10ee096b7875 |
| SHA512 | 8f0fb5a453030850c37e6f3b8f94bc0eb04512c4810dfc5499289dc74b1d02c38e639947245e996cfb3398449395d3ba59f1513f5a9c3283dc4d268f0d7265c5 |
C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
| MD5 | cf6c595d3e5e9667667af096762fd9c4 |
| SHA1 | 9bb44da8d7f6457099cb56e4f7d1026963dce7ce |
| SHA256 | 593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d |
| SHA512 | ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
C:\Users\Admin\AppData\Roaming\tor\cached-microdesc-consensus.tmp
| MD5 | 76129b0242ac64dce87fb8de309df8ca |
| SHA1 | c5b5aa6a7704fc20222d06ed851ca97693b04a6c |
| SHA256 | fcca8d181451bab1df322ede8f0ae6ba0d508490d22d9f6ea54aca1eb5e7c81f |
| SHA512 | 19aade62bde4153c0cdae6b5d2b007641c5cbecb7a295c62a019bcb00ecf95f068ee5301250a58682c0cdf4ed4db11daf2f5a819d9a89711e233f048d3da5cd0 |
C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new
| MD5 | e838546fb763814b11d10730b4eeb0e3 |
| SHA1 | 0c73b3198b6ffedc8b6a1488bb1dfa9fb94ae961 |
| SHA256 | 4124233822cc23501ce487065076855ff0079e0b178057e8bd7310abd8470a2a |
| SHA512 | fdee3eb84608502b6f920f35458f48299193158bc4d55425cac01dbafe994984f11c59a0058409f6342ec8755e146d6f4bf335439724d2e449202eb98efdf483 |
memory/1728-107-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1728-110-0x0000000000400000-0x000000000041B000-memory.dmp