Analysis Overview
SHA256
737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f
Threat Level: Known bad
The file 737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f was found to be: Known bad.
Malicious Activity Summary
Neshta
Executes dropped EXE
Reads user/profile data of web browsers
Loads dropped DLL
Modifies system executable filetype association
Checks computer location settings
Drops file in Program Files directory
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
NSIS installer
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-19 23:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-19 23:16
Reported
2024-05-19 23:19
Platform
win7-20240215-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Enumerates physical storage devices
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
"C:\Users\Admin\AppData\Local\Temp\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
| MD5 | 8f50877e925166dbbfe477cc199d28c4 |
| SHA1 | 4c515f4d7795fe07666859f26435b993803ef6a2 |
| SHA256 | 03ec0ee2b9da158d766379d5cc72d6364883b4f340278d0b7c009c87ed88c649 |
| SHA512 | de586323877773d502b599cce992825d0fe5bddd8b4990834f060235a9c3af95ef9eb62a4c866b5a4569281a3c6d464f6bedffd7744a62316ece363e391bf225 |
C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE
| MD5 | 754309b7b83050a50768236ee966224f |
| SHA1 | 10ed7efc2e594417ddeb00a42deb8fd9f804ed53 |
| SHA256 | acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6 |
| SHA512 | e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614 |
\Users\Admin\AppData\Local\Temp\nso1315.tmp\LangDLL.dll
| MD5 | fbbf9da918557aba6fa6e166a95ee8dd |
| SHA1 | abbd02abae00172971a2e9cef62dab3b562f90c7 |
| SHA256 | dc7daec6f47e63b5d001cd648d40d93c29be6f2c95fe8b212dbb4d94d31cb12d |
| SHA512 | 0f877a9e5c6eb06374f0f19f92a6ea55b09998c42c67b16db680918e3e0c2023d511893173f76dde60a47ffe916b0d9af09b6255a158fa3e0743dc54d2a35a65 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
C:\Users\Admin\AppData\Local\Temp\nso1315.tmp\ioSpecial.ini
| MD5 | fc942e15bec7c933fab2766a4a6231bf |
| SHA1 | 448d83e52a230bf4206a9788b44d09722401ec72 |
| SHA256 | 992a72088a941dfb6af3f4b5aa46fdae08e383304b39eac4f00031fd79ee8f6f |
| SHA512 | a8dc5ce9de9367e8c70468f260ed6e303bd3fd6f814ab775db599c1596c8e5338096780e8f21d39749ca30b75edb638941ed02531dfb569543378e5780b614a8 |
\Users\Admin\AppData\Local\Temp\nso1315.tmp\InstallOptions.dll
| MD5 | 296a5f3179fa8d7a7a855eaf696ede44 |
| SHA1 | 57aa5b71553ed282dd22c768e039a187f5c13f63 |
| SHA256 | ee0ad77e681c4d0fdf1d67df5f4ca03e6bdd8e3b05dfb47a83ad5c733ed62960 |
| SHA512 | bc527d1485f468e8d098057e0e38e8cb7aa6eb64d4ca30927b99b1552a3177b132b989015ff95bdf2ca046bf11a54b4b456f51e024fbc734fbb548c3499e53f6 |
C:\Users\Admin\AppData\Local\Temp\nso1315.tmp\ioSpecial.ini
| MD5 | 28e967a471eb41f1f22f08ba39afe47a |
| SHA1 | 90a35b3e3203082183602b3511c4669acadaca14 |
| SHA256 | e6c075bdd861cca81e1cae5ec7ffbeff0d711ad8dda015292a7f209a1b735d5a |
| SHA512 | afc87d066ac2552e9f31f65e1d5f5172c996ce0be27fe51ddc663f71fb389d25490b37c60320130c31d78fc38a90d8235a7ebec41155006c33c81b3d9ccf6704 |
memory/844-171-0x0000000000400000-0x000000000041B000-memory.dmp
memory/844-173-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-19 23:16
Reported
2024-05-19 23:19
Platform
win10v2004-20240426-en
Max time kernel
136s
Max time network
105s
Command Line
Signatures
Neshta
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Enumerates physical storage devices
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
"C:\Users\Admin\AppData\Local\Temp\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\737bf1c06ec2aa90cebbfa5c1e55225f19790864af0fc9034be1df4f251f9f1f.exe
| MD5 | 8f50877e925166dbbfe477cc199d28c4 |
| SHA1 | 4c515f4d7795fe07666859f26435b993803ef6a2 |
| SHA256 | 03ec0ee2b9da158d766379d5cc72d6364883b4f340278d0b7c009c87ed88c649 |
| SHA512 | de586323877773d502b599cce992825d0fe5bddd8b4990834f060235a9c3af95ef9eb62a4c866b5a4569281a3c6d464f6bedffd7744a62316ece363e391bf225 |
C:\Users\Admin\AppData\Local\Temp\nsq2F2F.tmp\LangDLL.dll
| MD5 | fbbf9da918557aba6fa6e166a95ee8dd |
| SHA1 | abbd02abae00172971a2e9cef62dab3b562f90c7 |
| SHA256 | dc7daec6f47e63b5d001cd648d40d93c29be6f2c95fe8b212dbb4d94d31cb12d |
| SHA512 | 0f877a9e5c6eb06374f0f19f92a6ea55b09998c42c67b16db680918e3e0c2023d511893173f76dde60a47ffe916b0d9af09b6255a158fa3e0743dc54d2a35a65 |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
| MD5 | d9e8a1fa55faebd36ed2342fedefbedd |
| SHA1 | c25cc7f0035488de9c5df0121a09b5100e1c28e9 |
| SHA256 | bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a |
| SHA512 | 134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33 |
C:\Users\Admin\AppData\Local\Temp\nsq2F2F.tmp\ioSpecial.ini
| MD5 | 65e9155ed13d519146e77b7fd17dd432 |
| SHA1 | f85c021387637d18cabc0a28de8c13a9e1a8271b |
| SHA256 | 36c88e4de00f9a27d1c7366f1cb1fe14f02c63bf97b1d15f4c63631313a5659b |
| SHA512 | ec2f7cb85726be6d3ac7977cd63259738fb0a0a8699b8d1dcd5602aa7959642424f28ad50c4ee9a331bf925c52c4aa37010a9f379fea5787abe68b123177aaad |
C:\Users\Admin\AppData\Local\Temp\nsq2F2F.tmp\InstallOptions.dll
| MD5 | 296a5f3179fa8d7a7a855eaf696ede44 |
| SHA1 | 57aa5b71553ed282dd22c768e039a187f5c13f63 |
| SHA256 | ee0ad77e681c4d0fdf1d67df5f4ca03e6bdd8e3b05dfb47a83ad5c733ed62960 |
| SHA512 | bc527d1485f468e8d098057e0e38e8cb7aa6eb64d4ca30927b99b1552a3177b132b989015ff95bdf2ca046bf11a54b4b456f51e024fbc734fbb548c3499e53f6 |
memory/1984-180-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1984-181-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1984-183-0x0000000000400000-0x000000000041B000-memory.dmp