Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2024 15:17
Static task
static1
Behavioral task
behavioral1
Sample
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe
Resource
win7-20241010-en
General
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Target
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe
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Size
1.3MB
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MD5
e14b67ab1a98fd24740bf3d572735ac8
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SHA1
b3e393e82e377657e003de64ed1df4db010dd9e5
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SHA256
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb
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SHA512
35dbfa96b94b10b06064bacb5fffd7f7ac842a9a3ec34c786becf95bcb56a7639d865e55967370afeb30f6624f6417c93e59ef2e0654ebe5338425abbd5e9ea6
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SSDEEP
24576:Me9svvw/1fKPSjAMHHTChtaV4n57CqckW36vy0rPWI3gQK:Me9AfPS5n+htaGFcky0LW31
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
Processes:
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exeDesktopLayer.exepid process 920 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe 2720 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe upx behavioral2/memory/920-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/920-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2720-14-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2720-16-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2720-13-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\pxEF71.tmp cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.execbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exeDesktopLayer.exeIEXPLORE.EXEdescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "786530463" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "786530463" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144598" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144598" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144598" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5A54325B-A689-11EF-BDBF-468C69F2ED48} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438794407" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "790749513" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe 2720 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2084 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exeiexplore.exeIEXPLORE.EXEpid process 4916 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe 4916 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe 2084 iexplore.exe 2084 iexplore.exe 3588 IEXPLORE.EXE 3588 IEXPLORE.EXE 3588 IEXPLORE.EXE 3588 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.execbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 4916 wrote to memory of 920 4916 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe PID 4916 wrote to memory of 920 4916 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe PID 4916 wrote to memory of 920 4916 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe PID 920 wrote to memory of 2720 920 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe DesktopLayer.exe PID 920 wrote to memory of 2720 920 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe DesktopLayer.exe PID 920 wrote to memory of 2720 920 cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe DesktopLayer.exe PID 2720 wrote to memory of 2084 2720 DesktopLayer.exe iexplore.exe PID 2720 wrote to memory of 2084 2720 DesktopLayer.exe iexplore.exe PID 2084 wrote to memory of 3588 2084 iexplore.exe IEXPLORE.EXE PID 2084 wrote to memory of 3588 2084 iexplore.exe IEXPLORE.EXE PID 2084 wrote to memory of 3588 2084 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe"C:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670eb.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exeC:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:920 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2084 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3588
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD511d14077869dba67110eb7f6cae1b120
SHA1f05e6bb7204a6e0efff37eedf3447eedc5de7b84
SHA256d59818a872b22bd33909691c19daaf807ac7042fc6897dea5ba296d02530f39e
SHA5129b62bb5f3e777e67ce440ca88f81e5e215443ad2c679b076d10a0534e816853340589d8d8e5e36fc53d60efe4dd5c0537e0fdf011064d1f8ff2c2dbffc2c992d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD551442b90f618f5e689fc753535bef0f5
SHA15e2a687003bed35881ba8782a84ef7dc7e6bfbe5
SHA2560232cca36ae67cc27b20ae844ee2b11218b20c6a50f4badb88d0acff897ef0dc
SHA5122f294caa7c6d9499586f5e1d1713aa8c0f0ca30bdf956e8b4d145756f91d6376ab1b9a1d7ea7bd4b15c0ab5efad7d53ded773ddbbe7d791535afcca6ce864366
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\cbace6d60a04a8ec72b7b27f1d51567bab68c9a13df19e308174d946b78670ebSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a