Analysis
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max time kernel
95s -
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
26-01-2025 22:09
Static task
static1
Behavioral task
behavioral1
Sample
2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe
Resource
win7-20241023-en
General
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Target
2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe
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Size
863KB
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MD5
4f6500943d7bfd9f295dc0f749968dae
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SHA1
555aa428e9dbf248f6cee56eaebde6b70e2e826d
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SHA256
2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e
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SHA512
7172325a9c0b4aaa91c17db669132c01b773247a4e6f5ca3c0377b8ebbb6dfbbae62fc96bdda0361768c2555d643163f79acae79318c70936a8c6911aac404e9
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SSDEEP
24576:D0FgIus+rPLMreIIuKqPqPUsnP6yNvyRlrmGgr:CgtsuSIXnBvyXrJgr
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 1520 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe 3176 DesktopLayer.exe -
resource yara_rule behavioral2/memory/1520-7-0x0000000000400000-0x0000000000413000-memory.dmp upx behavioral2/memory/1520-11-0x0000000000400000-0x0000000000413000-memory.dmp upx behavioral2/memory/3176-17-0x0000000000400000-0x0000000000413000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px9848.tmp 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1183422" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "5089497" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444694325" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{2B68230B-DC32-11EF-AF2A-DEEFF298442C} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158335" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158335" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe 3176 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2036 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 800 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe 2036 iexplore.exe 2036 iexplore.exe 800 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe 4516 IEXPLORE.EXE 4516 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 800 wrote to memory of 1520 800 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe 83 PID 800 wrote to memory of 1520 800 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe 83 PID 800 wrote to memory of 1520 800 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe 83 PID 1520 wrote to memory of 3176 1520 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe 84 PID 1520 wrote to memory of 3176 1520 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe 84 PID 1520 wrote to memory of 3176 1520 2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe 84 PID 3176 wrote to memory of 2036 3176 DesktopLayer.exe 85 PID 3176 wrote to memory of 2036 3176 DesktopLayer.exe 85 PID 2036 wrote to memory of 4516 2036 iexplore.exe 86 PID 2036 wrote to memory of 4516 2036 iexplore.exe 86 PID 2036 wrote to memory of 4516 2036 iexplore.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe"C:\Users\Admin\AppData\Local\Temp\2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346e.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:800 -
C:\Users\Admin\AppData\Local\Temp\2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exeC:\Users\Admin\AppData\Local\Temp\2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520 -
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:3176 -
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:2036 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2036 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4516
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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
MD5206fe14723a861b688f6473333dc507c
SHA19e2e50dfd67986677e808b216db08c02961ffd7b
SHA256c8b5bc9cb349c22051a2fedd1b4f755a1d6cce5cfb19be11a93c8e1d7daa5f18
SHA512a69a00c9a0b0bb6db4bd7e216a57c1f90c01f9fd0f029dcab1328112ec23ceb34e47be669a433fce8e3e575bfb153736269563bed172c6fc4875b8632890317a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5fd5d29b0616fc6637bbaab2af2148192
SHA162934857d72aa7deab7676354125651cb17b4389
SHA256450fea8f996869abec10373b4df074ffa2b822dab12c4efaec6fa2ff62d1b3c0
SHA51221a51e47dafd9565cdad3ff542300b97c8f8c20cd1e06aa1e1bfa73a9cbd867b6d86e238ddf7e1212e03ee4516a95710a59543763cdc1e0cce953ae3b5def36a
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\2af6449e58de99465b6253cc6a9ce3ded4a3215d169893dfb91e2405d593346eSrv.exe
Filesize52KB
MD5ce99b549382dbfc4f41efe99b5dbcd54
SHA166905167920ece3a0bf65441d30da72ad25b7475
SHA256e26d8f6a9c98b949d1f58c97c2dbcf7d90d7a3c3d2f06eb9b6033465d493322d
SHA51254447bdddf475594a4e8f5ccda131190e3e858a02e0147aee7c7b04ae54812b18aefdbdf5e59fc3005686b06fe938b904b2099672063738898f4995fd4bab1bc