Analysis
- max time kernel
94s - max time network
117s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
11/11/2024, 14:33
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll
Resource
win7-20240729-en
13 signatures
120 seconds
General
- Target 9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll
- Size 4.8MB
- Sample241111-rwxfda1apf
- SHA256 9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2
- MD5 c3e3f4d255d0966c8b2933cffbccdcb0
- SHA1 ef4ca18586789505b95ceacda9679ddb01f1b5aa
- SHA512 7a75b2cf6e348b20cc3027dfd8feae382bba9532b0778fabc5690d90728d95c8f9981a014fb2506169fc059338c73dcd067b3434f409720017f7f46b70c0627d
- SSDEEP 98304:raTiZ7qe+aOKvp3QZ6/HbS9FugmTw3gvhiWaOuBuJ0Ato4z/ukX:raTiZ7qfRmp3QZ6/+9Fu/v0AmWhX
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Ramnit family
- Executes dropped EXE 2 IoCs
pid Process 2756 rundll32mgr.exe 3496 WaterMark.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/memory/2756-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-16-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3496-29-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3496-35-0x0000000000400000-0x0000000000436000-memory.dmp upx behavioral2/memory/3496-31-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2756-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3496-38-0x0000000000400000-0x0000000000436000-memory.dmp upx behavioral2/memory/3496-39-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3496-41-0x0000000000400000-0x0000000000421000-memory.dmp upx - Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe rundll32mgr.exe File opened for modification C:\Program Files (x86)\Microsoft\px7AED.tmp rundll32mgr.exe - Program crash 1 IoCs
pid pid_target Process procid_target 2012 2880 WerFault.exe 87 - 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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31142982" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3110828164" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E4695615-A039-11EF-B9D5-E6FB6C85BB83} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3110828164" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31142982" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3148952801" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31142982" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31142982" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3148952801" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438100572" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe 3496 WaterMark.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3496 WaterMark.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4728 iexplore.exe - Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4728 iexplore.exe 4728 iexplore.exe 4500 IEXPLORE.EXE 4500 IEXPLORE.EXE 4500 IEXPLORE.EXE 4500 IEXPLORE.EXE - Suspicious use of UnmapMainImage 2 IoCs
pid Process 2756 rundll32mgr.exe 3496 WaterMark.exe - Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 4360 wrote to memory of 3868 4360 rundll32.exe 83 PID 4360 wrote to memory of 3868 4360 rundll32.exe 83 PID 4360 wrote to memory of 3868 4360 rundll32.exe 83 PID 3868 wrote to memory of 2756 3868 rundll32.exe 85 PID 3868 wrote to memory of 2756 3868 rundll32.exe 85 PID 3868 wrote to memory of 2756 3868 rundll32.exe 85 PID 2756 wrote to memory of 3496 2756 rundll32mgr.exe 86 PID 2756 wrote to memory of 3496 2756 rundll32mgr.exe 86 PID 2756 wrote to memory of 3496 2756 rundll32mgr.exe 86 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 2880 3496 WaterMark.exe 87 PID 3496 wrote to memory of 4728 3496 WaterMark.exe 94 PID 3496 wrote to memory of 4728 3496 WaterMark.exe 94 PID 3496 wrote to memory of 4140 3496 WaterMark.exe 95 PID 3496 wrote to memory of 4140 3496 WaterMark.exe 95 PID 4728 wrote to memory of 4500 4728 iexplore.exe 96 PID 4728 wrote to memory of 4500 4728 iexplore.exe 96 PID 4728 wrote to memory of 4500 4728 iexplore.exe 96
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4360 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3868 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3496 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe5⤵PID:2880
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 2046⤵
- Program crash
PID:2012
-
-
-
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4728 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4728 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4500
-
-
-
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
PID:4140
-
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2880 -ip 28801⤵PID:4400
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
- Size 471B
- SHA256 c66e4655524d70901b0e460076e5088f0033d09c7c8f175e05221569cf572e13
- MD5 ea6f4f772f0c592e24ca8ec502eac7ba
- SHA1 fe49ef754f38cc6f22d79f702e087263c7ce5ed3
- SHA512 070d13ecefac10740d746931329d32f12f69f70442e86ab955dff74a3b4cee16beb0cefd124ba97d39deaa67c7442022332d2e2eb30e416d8350a428da9d6f60
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
- Size 404B
- SHA256 821c59ab898ffb682be2819ea58e00450061c3ce6da6264db289a8e83f70a7db
- MD5 b39b6183f36df1aa53f52869a8c73c5f
- SHA1 64bd9e806837b76a3b56b4b807c2c8479bffc62a
- SHA512 5c3c36f43c1def0dd413d0e61dd124fe4b8369c41e5305933086c90cd077e875f464d0426e03981c82b1d26c9e6799e40b3d862403bf092c6b5674e94085674b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verFE9.tmp
- Size 15KB
- SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
- MD5 1a545d0052b581fbb2ab4c52133846bc
- SHA1 62f3266a9b9925cd6d98658b92adec673cbe3dd3
- SHA512 bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
- SSDEEP 384:79Jv9DF9/C9qc9/J9V791T9TK9Xf9Nm9xQ95a9BR9fV:79Jv9DF9/C9qc9/J9V791T9TK9Xf9NmT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US
- Size 17KB
- SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
- MD5 5a34cb996293fde2cb7a4ac89587393a
- SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
- SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
- SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\rundll32mgr.exe
- Size 112KB
- SHA256 9f9304bc206947b1b6790d6c3498dd5293816d221133d5bfe5501bf355758207
- MD5 03c26463753b18d7f68981ea0d0e737f
- SHA1 98d36db16cc298cc3ca6850557cb1573cd22c272
- SHA512 807d38377dbb4131986cba3464ff77752521b4bac1e4cef0cbee0bc365fe485e8677e122a7c3a185627b38e198330372ed031a22d6f8483c618b55dcde115ebe
- SSDEEP 1536:RVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEdfQ2L9GoV2nCq74w1cnaO:BnxwgxgfR/DVG7wBpEFQ2L/2T4wunal
- MD5 SHA1 SHA512 SSDEEP