Analysis Overview
SHA256
33e595babcf67d43afe50976ab1a20f58c8d737b723fbea915943e89d400e6cb
Threat Level: Known bad
The file baeaafc9f3d5c944ee7e39d2103e3c87 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer payload
Reads user/profile data of web browsers
UPX packed file
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-08 09:35
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-08 09:35
Reported
2024-03-08 09:37
Platform
win7-20240221-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
ISR Stealer
ISR Stealer 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
Reads user/profile data of web browsers
UPX packed file
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fire fox Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\baeaafc9f3d5c944ee7e39d2103e3c87.exe" | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2240 set thread context of 2308 | N/A | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | C:\Users\Admin\AppData\Local\Temp\twitter.exe |
| PID 2308 set thread context of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | C:\Users\Admin\AppData\Local\Temp\twitter.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe
"C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe"
C:\Users\Admin\AppData\Local\Temp\twitter.exe
C:\Users\Admin\AppData\Local\Temp\twitter.exe
C:\Users\Admin\AppData\Local\Temp\twitter.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\NvkJBmaosP.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | logs.warezthegfx.info | udp |
Files
memory/2240-1-0x00000000008D0000-0x0000000000910000-memory.dmp
memory/2240-0-0x0000000074090000-0x000000007463B000-memory.dmp
memory/2240-2-0x0000000074090000-0x000000007463B000-memory.dmp
\Users\Admin\AppData\Local\Temp\twitter.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/2308-7-0x0000000000400000-0x0000000000435000-memory.dmp
memory/2308-9-0x0000000000400000-0x0000000000435000-memory.dmp
memory/2308-15-0x0000000000400000-0x0000000000435000-memory.dmp
memory/2308-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2308-11-0x0000000000400000-0x0000000000435000-memory.dmp
memory/2240-20-0x0000000074090000-0x000000007463B000-memory.dmp
memory/2584-24-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2584-28-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2584-27-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2584-29-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2584-30-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2584-32-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\NvkJBmaosP.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2308-35-0x0000000000400000-0x0000000000435000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-08 09:35
Reported
2024-03-08 09:37
Platform
win10v2004-20240226-en
Max time kernel
143s
Max time network
151s
Command Line
Signatures
ISR Stealer
ISR Stealer 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
Reads user/profile data of web browsers
UPX packed file
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fire fox Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\baeaafc9f3d5c944ee7e39d2103e3c87.exe" | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5084 set thread context of 4624 | N/A | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | C:\Users\Admin\AppData\Local\Temp\twitter.exe |
| PID 4624 set thread context of 3244 | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | C:\Users\Admin\AppData\Local\Temp\twitter.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\twitter.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe
"C:\Users\Admin\AppData\Local\Temp\baeaafc9f3d5c944ee7e39d2103e3c87.exe"
C:\Users\Admin\AppData\Local\Temp\twitter.exe
C:\Users\Admin\AppData\Local\Temp\twitter.exe
C:\Users\Admin\AppData\Local\Temp\twitter.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\8dbjxRbnvH.ini"
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=1396 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| GB | 172.217.169.74:443 | tcp | |
| US | 8.8.8.8:53 | logs.warezthegfx.info | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.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 | 88.16.208.104.in-addr.arpa | udp |
Files
memory/5084-0-0x00000000749C0000-0x0000000074F71000-memory.dmp
memory/5084-1-0x00000000749C0000-0x0000000074F71000-memory.dmp
memory/5084-2-0x0000000001410000-0x0000000001420000-memory.dmp
memory/4624-5-0x0000000000400000-0x0000000000435000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\twitter.exe
| MD5 | e118330b4629b12368d91b9df6488be0 |
| SHA1 | ce90218c7e3b90df2a3409ec253048bb6472c2fd |
| SHA256 | 3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9 |
| SHA512 | ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0 |
memory/4624-9-0x0000000000400000-0x0000000000435000-memory.dmp
memory/3244-12-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3244-16-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3244-17-0x0000000000400000-0x0000000000453000-memory.dmp
memory/5084-19-0x00000000749C0000-0x0000000074F71000-memory.dmp
memory/3244-18-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3244-21-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\8dbjxRbnvH.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/4624-24-0x0000000000400000-0x0000000000435000-memory.dmp