Analysis
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max time kernel
93s -
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
24-01-2025 23:01
Static task
static1
Behavioral task
behavioral1
Sample
c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe
Resource
win7-20240903-en
General
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Target
c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe
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Size
2.6MB
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MD5
3391af7abdb20ccc321b9d8443ad41cd
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SHA1
3dd3388316b01c7f0fe9e3358a2d38d64818e4b6
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SHA256
c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859
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SHA512
fc3f0dcf3b086cde46288a282f0f417c79a5f63e5be8c5a3f875c5ad8433e87685f29de1a8f396efef49deccf7be43d56c9af9d91e8ad43f3585f851f99679f0
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SSDEEP
49152:RHFaAzszhIA5qWZbaq/4DduIrqMBQjYlY/OmdaDEfdqlM:RcAzUIA5XRawEYYlY2mYKE2
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 1644 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe 4248 DesktopLayer.exe -
Loads dropped DLL 20 IoCs
pid Process 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe -
resource yara_rule behavioral2/files/0x000b000000023bab-3.dat upx behavioral2/memory/1644-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4248-89-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4248-98-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1644-79-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px96A2.tmp c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.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 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157939" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4199975982" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157939" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4196069668" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444524664" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{25AA3E6C-DAA7-11EF-91C3-E24E87F0D14E} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\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 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe 4248 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4548 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4548 iexplore.exe 4548 iexplore.exe 1856 IEXPLORE.EXE 1856 IEXPLORE.EXE 1856 IEXPLORE.EXE 1856 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3900 wrote to memory of 1644 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 84 PID 3900 wrote to memory of 1644 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 84 PID 3900 wrote to memory of 1644 3900 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe 84 PID 1644 wrote to memory of 4248 1644 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe 85 PID 1644 wrote to memory of 4248 1644 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe 85 PID 1644 wrote to memory of 4248 1644 c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe 85 PID 4248 wrote to memory of 4548 4248 DesktopLayer.exe 86 PID 4248 wrote to memory of 4548 4248 DesktopLayer.exe 86 PID 4548 wrote to memory of 1856 4548 iexplore.exe 87 PID 4548 wrote to memory of 1856 4548 iexplore.exe 87 PID 4548 wrote to memory of 1856 4548 iexplore.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe"C:\Users\Admin\AppData\Local\Temp\c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Users\Admin\AppData\Local\Temp\c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exeC:\Users\Admin\AppData\Local\Temp\c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644 -
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:4248 -
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:4548 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4548 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1856
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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
MD5ce36378334f2edb4e728e0632afebb70
SHA189d54efcb8c7bbe532e5ad91b38468279d3f5c93
SHA2566be47a3ecfbf81a123c297ee65d70177b4010bfbe728b94b4337453683b9a6e1
SHA5123e09cc9ece1907c072f02f768ec749ceef3b8913f394bb075b1948d0409b7910670b91da7d35160c211d0bf8df05e83409a1ad7493ea53864c41f37305f75aa2
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5f0d112fb46388aee8b28148580c97f15
SHA14fc91a6c947eb0e5a810eb71f9133638c1cd42cd
SHA256bd8d1a19ba9319dfba47174cbcd3363a5d81633713eb8a2910de4c59417fb22a
SHA512e99be581b1005a4356e57cbad6a948ded1f14663655e8ad059bc8563fc1108d67326b06ada5045ca7b1b6de3452ed585b7c6fcb6198ce71e5a119ce944d1c5f8
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\c703c3bed0fc3000640442fcb0737f1cd6a9fc11324a72ccfaae89be269b6859Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
796KB
MD50a319eb1d56bb802d29db7b0882b0d4b
SHA1538b7d475d5a068b98afc6a98bef349d72b16d0f
SHA25637c38a5e0d85cb10ff6f68829bc848b27f312e7d95d4c8edcc0fb85366477b7f
SHA512e6b0f96b58da2e80ca729cb84489b1716e231ddeef66939c1762afc6b5d3914bfd6727041fc170e2f9964edb0b53bd3b4a8ef2fbb81289984898bd703b617ad8
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Filesize
32KB
MD513ddf9b2dce1fd240486bf7f9f8cb21e
SHA16c870fe5075963d7e43197ec154bf00523d0fa5a
SHA256dff275458c470e66ad5c6e76def73dda394a1a3624f794da78f07c6257b876c2
SHA512e003c752456679793fb658dbe57b23016bec6f9fdf80a4c7174e03c842133889aa9da16558c24606c885a213477e6bdbc8d32acecdb7a7925bdc10340f882425
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Filesize
24KB
MD514d6b35664bf47c1984722da0acaa7bb
SHA159eb0f4cba1514d44148588e485398667bb5f775
SHA256b370379b86f6dce6873fb170a6385fcac87f3fda0aa8f9caeecaaa4bc330f84d
SHA5129583759c2e7604662ff9444094fc332219d53ebd9aab205dbd66fd11203adfd71d4007676f2841a7a7f7a5835766d5bef4a90825cc772147d500580cb5d2b462
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Filesize
36KB
MD51996b48458b3fe66c7ff11cb53f23c43
SHA1035d8b86c68e80537ade315ebac842643472cb0e
SHA2569014060197b24a96bfa08cae7780b948bd4df1c73a1197de3a11f2ddaa2eaca9
SHA512b6afdd010ef8a5709bd79c43519088688a56cb5838875f26039abb583b6f67db8fafaf1f0b2a1589e00a101c981b48b5438ce821686bbfc0e4f7ec37b5e1f181
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Filesize
40KB
MD51c71c68c6e9385dd916e3bb239f93e72
SHA10befa6f59430c389df271107b45127a6702f23c1
SHA2562a14ba47b1142f36928ba2c0690c1de1008994035d1634e10af59274959242a2
SHA51295f22375de2c8f0da13fb69c54c8eb384ca1f90afb3a58796520aea924ce931a14b0b0aa2aa9221104e81feef397f3228dff31e2f9f4d0c12f3c229d84457d51
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Filesize
20KB
MD51ea70e44b6d1df8254c514cde11a5f3b
SHA1d387b307c569112074980f6140e2aee57c223655
SHA256c4b1bc9a677e960db4b5182c5917adbdcae14e177f5734b2ea77d2e7726995f3
SHA51204ddfabbd07b0e33f9134c8d6e419f9d3e0f1546df10d70a2c77ae48799e6ae5ffdc6df78a8c1e43f02bd12d615d2916bf0809c21e5ab3a6bdb4542faaf439fc
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Filesize
28KB
MD55457f9191e7a7dbd7ae41defd02457e6
SHA1141f08e8d14f4e21a15f5808bc55b37168e84571
SHA256970c5dcbefa446f8f35b58470e1cb5984ae987de409390a6b6c1b40a85e3b588
SHA51203ef6c85a1503af4fe8371fcd98aafa99328545adb1280c6cde33296ddf538b20dd37bdfb2fa6b81681c168e170171effe5143bb0e57c51a4c483dd9d87a5bea
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Filesize
584KB
MD5611242ee7a1c406283edfb1ce2f9dcf1
SHA1762444790231dc08b6dabb474ed5f0dc782d65a8
SHA256f790ef2dac6b4cd4d706c4b86dff137de24560077cb060f1da0b64d3278cabf0
SHA512fe96cbeec3fe6ff40632d7c080285cbde2c3d5398ef32bf0a44d0bf80c2aad4365a674970ce81a0be5c62dfaa489f6d891d196028ab165ed885c430da6b5f197
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Filesize
40KB
MD584f764ccae4d5d7b117c169a67858331
SHA1be7d2889ca6648a6e91132d3a824e9a5ebcc2781
SHA256e7a7da5efd0334c2c591e35147b35df3dcae26d9a30a0a7d5deca559f6ba941d
SHA512e1a9d53a899312ad1b4e6c4841364ba7bb07f7d3644088912147f41fa2e65730bd17c992f1b84ac2c917e3acd3df1612b9341138e8f48cbd189e582f1ba1e16a
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Filesize
712KB
MD59e63828c53d7cd2b1bf30ffbce951400
SHA15984f6aad00b4cb52c58be7e9a3d63c653b9a10f
SHA256b7ada205047d833c3d5e4fe8ee34de18260c5ab05b34fd0e16dc154a4769520b
SHA512d53de2f37473db8538da3db37d3de19742a59171ce6bcd4b3f90ffd6f37d534c090cb6dbf620b3e01619ef58ef8dd835fa812cb9e94b84b1f007d14df21eb6f7
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Filesize
48KB
MD5b12199ec1810c8921c6f3e4fde40ff2b
SHA1530a1ccd39de785771c30aa175ab94a3f085c21a
SHA2564f4bba152d16c05824ff1ebe4d8b2b52365ac745b45ef2b7ded13fbf1bf4a8c7
SHA512af244a32e39686f8876400963c33a0a297c797fd80b3b3a535de6abdd9584b5cc3fdd7b2934e636392bc8fd5d9fe81e4b9bc25b642b4f58646e341de72f19a6c