Analysis
-
max time kernel
95s -
max time network
147s -
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 20:05
Static task
static1
Behavioral task
behavioral1
Sample
32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe
Resource
win7-20240903-en
General
-
Target
32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe
-
Size
1.9MB
-
MD5
5a9a183b21cfb7e349994d4a27bc7c7c
-
SHA1
8fdc1d0ecb2f31642e042533112db15b30e9801a
-
SHA256
32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1
-
SHA512
6199473a9848a5f668cbc53dfd64a91f8253a89f27598e7375913f3b250328655a17f55bed7bdd5ae6d7f68e6b4988b5ab14e4417f12f35a14835e605a9dfbe6
-
SSDEEP
24576:h6z+tYP6frLCj2J0xS3+CA2hyagkrLN0CqBmhw4DxpGrQhJiVz6eLgMPUPpvu4U6:U0fr49P2htDP1qshjMpkMPUPpvu4U6
Malware Config
Signatures
-
Ramnit family
-
Executes dropped EXE 2 IoCs
pid Process 3212 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe 4444 DesktopLayer.exe -
resource yara_rule behavioral2/files/0x000a000000023bc5-3.dat upx behavioral2/memory/3212-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3212-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4444-12-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4444-14-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4444-16-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxA1CE.tmp 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" 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\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "998022172" 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 Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main 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 Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{670E4C99-A5E8-11EF-B9D5-468C69F2ED48} = "0" 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 (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144437" 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\LastCheckForUpdateHighDateTime = "31144437" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438725280" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" 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\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144437" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main 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 = "998022172" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1004428763" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion 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 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe 4444 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4500 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4500 iexplore.exe 4500 iexplore.exe 4576 IEXPLORE.EXE 4576 IEXPLORE.EXE 4576 IEXPLORE.EXE 4576 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 448 wrote to memory of 3212 448 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe 84 PID 448 wrote to memory of 3212 448 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe 84 PID 448 wrote to memory of 3212 448 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe 84 PID 3212 wrote to memory of 4444 3212 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe 85 PID 3212 wrote to memory of 4444 3212 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe 85 PID 3212 wrote to memory of 4444 3212 32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe 85 PID 4444 wrote to memory of 4500 4444 DesktopLayer.exe 86 PID 4444 wrote to memory of 4500 4444 DesktopLayer.exe 86 PID 4500 wrote to memory of 4576 4500 iexplore.exe 88 PID 4500 wrote to memory of 4576 4500 iexplore.exe 88 PID 4500 wrote to memory of 4576 4500 iexplore.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe"C:\Users\Admin\AppData\Local\Temp\32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Users\Admin\AppData\Local\Temp\32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exeC:\Users\Admin\AppData\Local\Temp\32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3212 -
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:4444 -
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:4500 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4500 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4576
-
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5cdfebcd84ff934bb577a1d3a07a3ccad
SHA15092f452374bb3943b00cf53bcad7a92215bae87
SHA2567f877563622aeda07395133fb7c81746df3389c360549e2309c161c8a394d9bf
SHA512605a455017dc67d6257a5b434ce9a8df8fbac30dcf6e45856c823ee9998f4008ae08947129a23d88c222c866a06192c2e75374880fe8b67d591816492ae4f56b
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD51d6827d2a23809d0e90245a07a73aa7b
SHA1fb215959a305c7307ce105e43d1670a417f67dd7
SHA25621fafaf9d2ce997b1506e0b12c039a7dc106e2ea47d9b8322454f57da6454944
SHA512289a3b5672257757c92da01115bafb58be9dc2664f75e0978454d8fe77acc827dc419bbdc1b5053f5bd19fee13920987afd515088da305a1bf241694ce3d7203
-
Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
-
C:\Users\Admin\AppData\Local\Temp\32dd4dbbe6ccda2e040297a2d8eaf4cb5ce9b6dc641b56f2403b0d9ad14ce2d1Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a