Analysis
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max time kernel
98s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2024 21:08
Static task
static1
Behavioral task
behavioral1
Sample
a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe
Resource
win7-20240903-en
General
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Target
a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe
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Size
1.3MB
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MD5
acafe77b1ab047a3e52be83f29189470
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SHA1
042257074d11d9f368533fe92f7e28c20770aa5f
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SHA256
a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56
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SHA512
b4543b9be7be151b75eb89d389188d487bf0438cedd10a3d4cd315499c6dba30e6925bb8348e3905e564bb1ad7234bbecd43e737c1258f9d006b7af0c7c56cf6
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SSDEEP
24576:Av/vRrEzNRNRjfOOuCkUylW8xtI98ZKxkEp3W8AD/Dhd+y4lqJ8QdCYDoDNKn01:Av9E5NOOujUyltI98msvD/DX+y4onCYc
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 4 IoCs
pid Process 2040 h3.exe 4348 ÁÖß÷ß÷Æƽâ.exe 4820 h3Srv.exe 2344 DesktopLayer.exe -
Loads dropped DLL 3 IoCs
pid Process 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\h3.exe" h3.exe -
resource yara_rule behavioral2/memory/4820-24-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4820-27-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x0007000000023c97-25.dat upx behavioral2/memory/2344-34-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2344-35-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxAB44.tmp h3Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe h3Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe h3Srv.exe -
System Location Discovery: System Language Discovery 1 TTPs 8 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 DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ÁÖß÷ß÷Æƽâ.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language h3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language h3Srv.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1194351871" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153096" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153096" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{72BFA9D4-C7BB-11EF-A7EA-DEEFF298442C} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1198570637" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153096" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442444311" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1194351871" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe 2344 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4972 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 4972 iexplore.exe 4972 iexplore.exe 4040 IEXPLORE.EXE 4040 IEXPLORE.EXE 4040 IEXPLORE.EXE 4040 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 960 wrote to memory of 748 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 83 PID 960 wrote to memory of 748 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 83 PID 960 wrote to memory of 748 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 83 PID 960 wrote to memory of 4432 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 84 PID 960 wrote to memory of 4432 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 84 PID 960 wrote to memory of 4432 960 a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe 84 PID 748 wrote to memory of 4348 748 cmd.exe 87 PID 748 wrote to memory of 4348 748 cmd.exe 87 PID 748 wrote to memory of 4348 748 cmd.exe 87 PID 4432 wrote to memory of 2040 4432 cmd.exe 88 PID 4432 wrote to memory of 2040 4432 cmd.exe 88 PID 4432 wrote to memory of 2040 4432 cmd.exe 88 PID 2040 wrote to memory of 4820 2040 h3.exe 90 PID 2040 wrote to memory of 4820 2040 h3.exe 90 PID 2040 wrote to memory of 4820 2040 h3.exe 90 PID 4820 wrote to memory of 2344 4820 h3Srv.exe 91 PID 4820 wrote to memory of 2344 4820 h3Srv.exe 91 PID 4820 wrote to memory of 2344 4820 h3Srv.exe 91 PID 2344 wrote to memory of 4972 2344 DesktopLayer.exe 92 PID 2344 wrote to memory of 4972 2344 DesktopLayer.exe 92 PID 4972 wrote to memory of 4040 4972 iexplore.exe 93 PID 4972 wrote to memory of 4040 4972 iexplore.exe 93 PID 4972 wrote to memory of 4040 4972 iexplore.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe"C:\Users\Admin\AppData\Local\Temp\a10606704e8a007f0e6d82364f03d0f1d683472ce0d7f768011f0441de444e56N.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\SysWOW64\cmd.execmd /c start C:\Users\Admin\AppData\Local\Temp\\ÁÖß÷ß÷Æƽâ.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Users\Admin\AppData\Local\Temp\ÁÖß÷ß÷Æƽâ.exeC:\Users\Admin\AppData\Local\Temp\\ÁÖß÷ß÷Æƽâ.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4348
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C:\Windows\SysWOW64\cmd.execmd /c start C:\Users\Admin\AppData\Local\Temp\\h3.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Users\Admin\AppData\Local\Temp\h3.exeC:\Users\Admin\AppData\Local\Temp\\h3.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040 -
C:\Users\Admin\AppData\Local\Temp\h3Srv.exeC:\Users\Admin\AppData\Local\Temp\h3Srv.exe4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"6⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4972 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4972 CREDAT:17410 /prefetch:27⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5febff5e5b64433316ee5f116c5c14309
SHA155a533777edeed0d18304f073d59d5ca1e5c7737
SHA256888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4
SHA512cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5d3f41af18e76ef6bd97fd0e318b376cc
SHA19311d8561aaa74a61faf45359c0f37987964172c
SHA256258d85cf1606eefad9582337e3e382fc8491269a1e1a8144f4813abf70c3b933
SHA512b556ce0588dceb66978d2a8f337d58e44f97f3a9993f046129628cac4f8d3472bef4c28730f9f28d63843f69fc74db3bb66f6a71f00bab4509a7f46cee90390a
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
1.1MB
MD597c8fe752e354b2945e4c593a87e4a8b
SHA103ab4c91535ecf14b13e0258f3a7be459a7957f9
SHA256820d8dd49baed0da44d42555ad361d78e068115661dce72ae6578dcdab6baead
SHA512af4492c08d6659d21ebfefe752b0d71210d2542c1788f1d2d9f86a85f01c3dd05eebf61c925e18b5e870aec7e9794e4a7050a04f4c58d90dca93324485690bcc
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Filesize
56KB
MD5d63851f89c7ad4615565ca300e8b8e27
SHA11c9a6c1ce94581f85be0e99e2d370384b959578f
SHA2560a6ae72df15cbca21c6af32bc2c13ca876e191008f1078228b3b98add9fc9d8d
SHA512623e9e9beb5d2a9f3a6a75e5fac9dda5b437246fd3b10db4bba680f61bc68aae6714f11a12938b7d22b1c7691f45a75c4406ba06fa901da8ce05e784038970d2
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Filesize
680KB
MD5139ff13b233d72adc79c1e45d25d5bc6
SHA15af985a43dc26f086fe1a5a6528d9843d11a1f7d
SHA256287d7757d5564992054712f647b1bfae3667d6f2c44e84ffd8f58b3d44f98ac0
SHA51240fac81015febfcdb11d12ec3cdc8c892bfcc1f84314ecf2818897e7eb30ea6cae843ec3b83dd8f2cd858b745a6bc02b957c097028a4f34a46e5c36ed331f596
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
61KB
MD5b9d48c84ac25ba2f269b1142d538c025
SHA1becfd0ccd3b24ef8fc793cbbd7ea0c27f2c8ce65
SHA256017057c7a3e44318763f00e39bccd91464b7bfd25682f2b5fd837dde1d69b362
SHA512ae37d8e5352c7601d631b7c6110ec3a5434de75a88a22925f8970887792a1787e9311bbec050cd603cc4a50bbd42bf52a29de87371428d48047c091a28d154c9