Analysis Overview
SHA256
99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd
Threat Level: Known bad
The file 99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd was found to be: Known bad.
Malicious Activity Summary
Neshta family
Neshta
Detect Neshta payload
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
Program crash
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-20 00:54
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
2024-06-20 00:54
Reported
2024-06-20 00:57
Platform
win10v2004-20240226-en
Max time kernel
156s
Max time network
158s
Command Line
Signatures
Detect Neshta payload
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Neshta
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe |
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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
"C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3372 -ip 3372
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 428
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3944 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| GB | 96.16.110.114:80 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 164.189.21.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.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 | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.178.10:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 10.178.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.116.69.13.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
| MD5 | 1c3bfdeb198b72bff1db6d1e639af1a8 |
| SHA1 | 27d65a4bf4be185676383298820177c9523d6006 |
| SHA256 | d0b8ccaa0beba323e0a1436c7d2348dfd2317f7155c3e74b880c23818cb00bf8 |
| SHA512 | 49ea33f69f04f95a0d8bdc0fafe7889ecdf1d0b670ea42f329237e37c8f12c12672eaa1851c5320ca7dc70d44af6c83727ac6c2026f219653d16dd1719674cb8 |
memory/1972-8-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-14-0x0000000000400000-0x000000000041B000-memory.dmp
C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
| MD5 | 8ffc3bdf4a1903d9e28b99d1643fc9c7 |
| SHA1 | 919ba8594db0ae245a8abd80f9f3698826fc6fe5 |
| SHA256 | 8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6 |
| SHA512 | 0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427 |
memory/1972-99-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-122-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-123-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-124-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-125-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-126-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-127-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-128-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-129-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-130-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-131-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-132-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1972-133-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 00:54
Reported
2024-06-20 00:57
Platform
win7-20240611-en
Max time kernel
119s
Max time network
120s
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 |
Neshta
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe |
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\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
"C:\Users\Admin\AppData\Local\Temp\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe"
C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 140
Network
Files
\Users\Admin\AppData\Local\Temp\3582-490\99d0d28eb14396ed20d2835fc7b34313cb6bd39cf2de1da324d069df4a1bd0cd.exe
| MD5 | 1c3bfdeb198b72bff1db6d1e639af1a8 |
| SHA1 | 27d65a4bf4be185676383298820177c9523d6006 |
| SHA256 | d0b8ccaa0beba323e0a1436c7d2348dfd2317f7155c3e74b880c23818cb00bf8 |
| SHA512 | 49ea33f69f04f95a0d8bdc0fafe7889ecdf1d0b670ea42f329237e37c8f12c12672eaa1851c5320ca7dc70d44af6c83727ac6c2026f219653d16dd1719674cb8 |
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 |
memory/2412-91-0x0000000000400000-0x000000000041B000-memory.dmp