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
18-11-2024 01:40
Static task
static1
Behavioral task
behavioral1
Sample
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe
Resource
win7-20240903-en
General
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Target
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe
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Size
1.4MB
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MD5
c36593f4b42b51d49c8d50f66c793456
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SHA1
171daf57b9415ddf85d1832df1788581b3c6b73e
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SHA256
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d
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SHA512
79aff4fe6e92c6a15c0372a4c115a256186e0e9ee1b8c926bf55d1cc2cf9626be66ee60c67aea7a9b28883399a7180dc0f469e3e0c49f39a8ec121a41146c17c
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SSDEEP
24576:zFiJgbowe6ssJQcAZvI4lyzTCiKC/XS8BGqcJOx0D3gQ+:z7ow4sKpqFSDJA0kn
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
Processes:
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exeDesktopLayer.exepid Process 3260 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe 632 DesktopLayer.exe -
Processes:
resource yara_rule behavioral2/files/0x000a000000023bbd-3.dat upx behavioral2/memory/3260-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3260-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/632-14-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/632-16-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/632-12-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/632-17-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exedescription ioc Process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\pxB083.tmp d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.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:
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exed2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exeDesktopLayer.exeIEXPLORE.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144282" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4144668362" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144282" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4148262014" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438659022" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4144668362" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{2292C469-A54E-11EF-B9B6-FA89EA07D49F} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe 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)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144282" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid Process 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe 632 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid Process 2796 iexplore.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exeiexplore.exeIEXPLORE.EXEpid Process 864 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe 864 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe 2796 iexplore.exe 2796 iexplore.exe 5016 IEXPLORE.EXE 5016 IEXPLORE.EXE 5016 IEXPLORE.EXE 5016 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exed2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exeDesktopLayer.exeiexplore.exedescription pid Process procid_target PID 864 wrote to memory of 3260 864 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe 83 PID 864 wrote to memory of 3260 864 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe 83 PID 864 wrote to memory of 3260 864 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe 83 PID 3260 wrote to memory of 632 3260 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe 84 PID 3260 wrote to memory of 632 3260 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe 84 PID 3260 wrote to memory of 632 3260 d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe 84 PID 632 wrote to memory of 2796 632 DesktopLayer.exe 85 PID 632 wrote to memory of 2796 632 DesktopLayer.exe 85 PID 2796 wrote to memory of 5016 2796 iexplore.exe 86 PID 2796 wrote to memory of 5016 2796 iexplore.exe 86 PID 2796 wrote to memory of 5016 2796 iexplore.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe"C:\Users\Admin\AppData\Local\Temp\d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33d.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Users\Admin\AppData\Local\Temp\d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exeC:\Users\Admin\AppData\Local\Temp\d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3260 -
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:632 -
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:2796 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:5016
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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
MD567b3270e9ee2455fec6e20353842018a
SHA1afb768285ecc4fad9cb171c6ec0247e54a645746
SHA256a0e3067884f99355e97dd1979abe971940e233b6d8426ca2f9caedc7f5b25456
SHA512605ae45158f81452bfe383b3a8ec2407ce9c1bcd0d5b1372d13c870569105c764b89abf0a184fa3779770dba24e69b503ba7825026fcfd24fda06cce3ac9f3c5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD530238bc436124bf6ec61df08152dbf7d
SHA11c83a737e2fff04ed5282dc31242619d0e19aa4a
SHA25656e27bce5f0c08a8255d16200fe8d55e560ec841cb0ec650de0250584128a863
SHA512f2515de1256b4a0e025e85ba3cc338a9cf22373fcd32dcd8ca51647bc5304f8f0ada9cb65b56e5d903453fa3a32b0ffcc39b29d222f089c069ae844b772b624e
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\d2be74b100d5c0f3f7f44759b136125c1fb5b90de739e1eaf4420822a5aaa33dSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a