Analysis Overview
SHA256
137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b
Threat Level: Known bad
The file 137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b was found to be: Known bad.
Malicious Activity Summary
Neshta
Detect Neshta payload
Modifies system executable filetype association
Reads user/profile data of web browsers
Loads dropped DLL
Checks computer location settings
Suspicious use of SetThreadContext
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-31 01:34
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-31 01:34
Reported
2024-05-31 01:36
Platform
win7-20240221-en
Max time kernel
120s
Max time network
125s
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Neshta
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3008 set thread context of 2640 | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe |
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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
"C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe"
C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
"C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe"
Network
Files
memory/3008-0-0x000000007465E000-0x000000007465F000-memory.dmp
memory/3008-1-0x00000000008D0000-0x0000000000980000-memory.dmp
memory/3008-2-0x0000000074650000-0x0000000074D3E000-memory.dmp
memory/3008-3-0x0000000000400000-0x0000000000416000-memory.dmp
memory/3008-4-0x0000000000540000-0x000000000054C000-memory.dmp
memory/3008-5-0x0000000000550000-0x0000000000560000-memory.dmp
memory/3008-6-0x00000000059A0000-0x0000000005A2C000-memory.dmp
memory/2640-7-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-19-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-21-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-23-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-20-0x0000000000400000-0x000000000041B000-memory.dmp
memory/3008-24-0x0000000074650000-0x0000000074D3E000-memory.dmp
memory/2640-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2640-16-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-13-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-11-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-9-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-15-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-14-0x0000000000400000-0x000000000041B000-memory.dmp
C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
| MD5 | f4db4d9c0875e18264cc03d4cf1a8129 |
| SHA1 | f1836b077a5568c4fe34556f9ce50a7f55676bca |
| SHA256 | 4e17e3a31c104536c61b4c9df44c69d2a03f31fb0c0eb7a1ff4105d6fe1b3b44 |
| SHA512 | 49d3b78094af1f18eb898c706e7ee32b027a871a7374625ba1052ed2367de408ca9d3fb984ef57cf5abb0f1c89fcaaed9c7481306671836b4ffb55244cc96b93 |
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
| MD5 | 9e2b9928c89a9d0da1d3e8f4bd96afa7 |
| SHA1 | ec66cda99f44b62470c6930e5afda061579cde35 |
| SHA256 | 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043 |
| SHA512 | 2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156 |
memory/2640-104-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2640-106-0x0000000000400000-0x000000000041B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-31 01:34
Reported
2024-05-31 01:36
Platform
win10v2004-20240508-en
Max time kernel
143s
Max time network
158s
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 |
| 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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 924 set thread context of 1044 | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe |
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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.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\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
"C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe"
C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
"C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe"
C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
"C:\Users\Admin\AppData\Local\Temp\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| BE | 88.221.83.187:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 187.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 105.83.221.88.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 | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
Files
memory/924-0-0x000000007524E000-0x000000007524F000-memory.dmp
memory/924-1-0x00000000009A0000-0x0000000000A50000-memory.dmp
memory/924-2-0x0000000005A90000-0x0000000006034000-memory.dmp
memory/924-3-0x0000000005420000-0x00000000054B2000-memory.dmp
memory/924-4-0x00000000054F0000-0x00000000054FA000-memory.dmp
memory/924-5-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/924-6-0x0000000008030000-0x0000000008046000-memory.dmp
memory/924-7-0x0000000006650000-0x000000000665C000-memory.dmp
memory/924-8-0x0000000006660000-0x0000000006670000-memory.dmp
memory/924-9-0x00000000066A0000-0x000000000672C000-memory.dmp
memory/924-10-0x000000000A660000-0x000000000A6FC000-memory.dmp
memory/1044-11-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1044-12-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1044-14-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1044-16-0x0000000000400000-0x000000000041B000-memory.dmp
memory/924-17-0x0000000075240000-0x00000000759F0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\3582-490\137e8677d7629105f81f0b3a00af62efbfb8f663073a79c82f533d31df82b48b.exe
| MD5 | 3d7e75325f565791bc56e2711343abc9 |
| SHA1 | 24686824dda5dadc3536f8aa1f0387317d5ebd3f |
| SHA256 | b35c93798eb8778390bbf981da821c0a58c88d4b38b762a1f94bed46a808b47e |
| SHA512 | 56bb29667d06bde4a12329d554a05362fecfc20da3018ac4a7a9fce5e765b6cf6d331f0f1769f35fddd35c6b80436a55221e85b9c719864b0d064cf7e16b838f |
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
| MD5 | 196ca173ea5f07129b75cdeb73ca1216 |
| SHA1 | 4a48deef4ca144be897df9b84f60e25661b5cc86 |
| SHA256 | 5d69ee0f8d647b7bd888830ce1e462adc2af365d473e00554a119b741f33bc52 |
| SHA512 | b967c79231e394ba8ac0f64e1301626db2386020fdb1bd81f44a0ad534474009073afba940fc7e02bd13a60d0d40c37da6ecaa8929b79b3340bb2bbbe1069cb0 |
memory/1044-114-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1044-116-0x0000000000400000-0x000000000041B000-memory.dmp