Analysis
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max time kernel
92s -
max time network
142s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
15-05-2021 14:02
Static task
static1
Behavioral task
behavioral1
Sample
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe
Resource
win7v20210408
General
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Target
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe
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Size
149KB
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MD5
c4c41774da7a3159303357633436a14c
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SHA1
7ba8859d5753323b334b56af0e57a2a7abad6fef
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SHA256
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e
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SHA512
cdabc106e973646affad22e11609aae6344789c29822f32112afb13c4b98aa3fdcdf3f16f86f86ffbb377b1a78677035109fd66200c14842c625149135621cb1
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeDesktopLayer.exepid process 3248 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe 1188 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe upx C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/1188-123-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxF96.tmp a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\NextUpdateDate = "327932898" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Telligent iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\FileVersion = "2016061511" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30886365" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2134850540" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30886365" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$http://www.typepad.com/ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2127037261" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327884313" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$MediaWiki iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{AA1ECF41-B5D0-11EB-A11C-7E556571BED2} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate\NextUpdateDate = "327900906" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 3 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$WordPress iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30886365" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2127037261" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Discuz! iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 4 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$blogger iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe 1188 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 3648 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 3648 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 3648 iexplore.exe 3648 iexplore.exe 2732 IEXPLORE.EXE 2732 IEXPLORE.EXE 2732 IEXPLORE.EXE 2732 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exea1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 2204 wrote to memory of 3248 2204 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe PID 2204 wrote to memory of 3248 2204 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe PID 2204 wrote to memory of 3248 2204 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe PID 3248 wrote to memory of 1188 3248 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe DesktopLayer.exe PID 3248 wrote to memory of 1188 3248 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe DesktopLayer.exe PID 3248 wrote to memory of 1188 3248 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe DesktopLayer.exe PID 1188 wrote to memory of 3648 1188 DesktopLayer.exe iexplore.exe PID 1188 wrote to memory of 3648 1188 DesktopLayer.exe iexplore.exe PID 3648 wrote to memory of 2732 3648 iexplore.exe IEXPLORE.EXE PID 3648 wrote to memory of 2732 3648 iexplore.exe IEXPLORE.EXE PID 3648 wrote to memory of 2732 3648 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe"C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeC:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3248 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1188 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3648 CREDAT:82945 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2732
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776MD5
a0a5a4d72ad62fd610b043c84033deaf
SHA1aa5c3deaba3b479e004880b369f63f2b59b23b9a
SHA25635d20d28885d84fef2a2e06125bf9626fbab13b99d1238a435a444a8db1cb9c6
SHA51220dd0d4276e854bca2767bd4cf7f04068a23742ff33926a7ba5296d2b0a453d456f37662e443c4df2fc3027bbead658a8ca6f8be40a61c82e3d6085cf85b9243
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776MD5
c7526e8d7f089c01c0f50bcb5e78b362
SHA19611f55b357bc9da5ab01d95508e235870470af4
SHA256582df0248ae6de3738486837344ba2d286846d7262aed23b29b01d46eaba6e10
SHA512d18bc8ae9462f4ae943ac67c74370a369ce9877ff969e607f09a1cd5d8e79871d4287bb961431ea8251b0f57b65c834c0253e41b3bf5177c3313dc663a80c84a
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\9AV1TVNL.cookieMD5
7a59ae63ebff9b957072820e0630775c
SHA1962631f5aabef1e30fa4f38c2477ecce1a3ca053
SHA2568d783c6633738341194788e6e7b2fcb71ac1c5406b2b3a31126f9b9743d65e99
SHA512467ba3a184a3dae92c042d722f823cf10c666ab78a14d352dc9939dc0dcdfcc354d12ac8d4ce2593f95e024c2132b6c3f59726a5a4cc133b616a7c4f529e543a
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C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeMD5
da18881ccaefeaa4942af9291cb34826
SHA1e4f33c21684bede05ccea60dd0767250ff2b3aba
SHA2561d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842
SHA5122420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901
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memory/1188-117-0x0000000000000000-mapping.dmp
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memory/1188-122-0x00000000001F0000-0x00000000001F1000-memory.dmpFilesize
4KB
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memory/1188-123-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/2204-126-0x00000000004B0000-0x00000000004B1000-memory.dmpFilesize
4KB
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memory/2732-128-0x0000000000000000-mapping.dmp
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memory/3248-114-0x0000000000000000-mapping.dmp
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memory/3248-119-0x00000000001E0000-0x00000000001EF000-memory.dmpFilesize
60KB
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memory/3648-127-0x00007FF833AD0000-0x00007FF833B3B000-memory.dmpFilesize
428KB
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memory/3648-124-0x0000000000000000-mapping.dmp