Analysis Overview
SHA256
b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b
Threat Level: Known bad
The file b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe was found to be: Known bad.
Malicious Activity Summary
Ramnit family
Ramnit
Executes dropped EXE
UPX packed file
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-15 20:53
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-15 20:53
Reported
2024-11-15 20:56
Platform
win10v2004-20241007-en
Max time kernel
91s
Max time network
114s
Command Line
Signatures
Ramnit
Ramnit family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Microsoft\pxDA62.tmp | C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BED2CC73-A393-11EF-B9B6-5EA348B38F9D} = "0" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2477705592" | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2471142775" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2471142775" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31143840" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143840" | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438469018" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143840" | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft\DesktopLayer.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| N/A | N/A | C:\Program Files\Internet Explorer\iexplore.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe
"C:\Users\Admin\AppData\Local\Temp\b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b.exe"
C:\Program Files (x86)\Microsoft\DesktopLayer.exe
"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:632 CREDAT:17410 /prefetch:2
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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.bing.com | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 161.19.199.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 204.79.197.200:443 | ieonline.microsoft.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/4476-0-0x0000000000400000-0x000000000045C000-memory.dmp
memory/4476-1-0x0000000000610000-0x000000000061F000-memory.dmp
memory/4476-2-0x0000000000400000-0x000000000045C000-memory.dmp
C:\Program Files (x86)\Microsoft\DesktopLayer.exe
| MD5 | b642c13b1a35871e2493de13e85dcb3e |
| SHA1 | 4e70dd361d4bacc00b15619937a10802f52f09b8 |
| SHA256 | b1113ad5b57aa800e75161753ee5da2dc9867d0e88e383e71bb4a1ab431d7b0b |
| SHA512 | 77a111666b75cb4411567c2a63c5f5b04d03b04dcbf791ef955c114e9ca98fde478c7d302a51be0599177edcac46cc8d97ae2661d16e55c897602a329ba0b1e2 |
memory/2896-10-0x0000000000400000-0x000000000045C000-memory.dmp
memory/2896-13-0x0000000000400000-0x000000000045C000-memory.dmp
memory/2896-12-0x0000000000400000-0x000000000045C000-memory.dmp
memory/2896-11-0x00000000005A0000-0x00000000005A1000-memory.dmp
memory/2896-8-0x0000000000400000-0x000000000045C000-memory.dmp
memory/4476-7-0x0000000000400000-0x000000000045C000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
| MD5 | 40c28cd531d58de8db16016dc0d5714e |
| SHA1 | e646311f405f2ab347816fe8e09b67d4bf710dd3 |
| SHA256 | 4302640c3f3fc1eca56addcdff0ade2005de6b5193f281ee34585749186cec34 |
| SHA512 | 9a01f922a79d09064a3260b0c08510e0978137266d008e2636c8b260179ada73fb5638cd7b56885d1e2a16af90078424a062a8f7cfd21f7ec274087040832126 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
| MD5 | 4716dbab6f2ab2afcbaf76db5f0b38c9 |
| SHA1 | 9ff921c8611055814c46c2f6040cc4212879907b |
| SHA256 | 14e6269329dc675b9c53db477169c352464cdcbf50d9653a22620720fcfd6573 |
| SHA512 | 3ceb67375c9023369d37b78cc52157c6c3c540b3aef9dc470ccd562b9046a3883fc27a7f193550230987927db461d7e7b0a8cddfec12f45817268499bb78d02d |
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\suggestions[1].en-US
| MD5 | 5a34cb996293fde2cb7a4ac89587393a |
| SHA1 | 3c96c993500690d1a77873cd62bc639b3a10653f |
| SHA256 | c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad |
| SHA512 | e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee |