Analysis
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max time kernel
103s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 11:46
Static task
static1
Behavioral task
behavioral1
Sample
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe
Resource
win7-20220901-en
General
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Target
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe
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Size
1.9MB
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MD5
28b7895185f1af2d9bd4b688daee277b
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SHA1
1d8ff9d4272f88e891472013fadad151b5881e76
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SHA256
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a
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SHA512
32dae8739b1b89c1add23e45d2ac7088cae20d9a7e44d0730f57d7c915d168e55e16df0a23499b582a7e5080cb2f4b6ba453b186c30448b34850628aae5c5b22
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SSDEEP
49152:WryfyD2phLtaAGcoaNKIayOzRk/OX1euMao8PwhJGDh:pDLQA8AONk2X1euMaVPsJQh
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exeDesktopLayer.exepid process 868 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe 2368 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe upx C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/868-141-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2368-142-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 4 IoCs
Processes:
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exepid process 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe -
Drops file in Program Files directory 3 IoCs
Processes:
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxF477.tmp 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375974615" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9EDA7906-6B31-11ED-AECB-4AA92575F981} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1943369471" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998334" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1975868555" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998334" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998334" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1943369471" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe 2368 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 2264 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 2264 iexplore.exe 2264 iexplore.exe 556 IEXPLORE.EXE 556 IEXPLORE.EXE 556 IEXPLORE.EXE 556 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1656 wrote to memory of 868 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe PID 1656 wrote to memory of 868 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe PID 1656 wrote to memory of 868 1656 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe PID 868 wrote to memory of 2368 868 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe DesktopLayer.exe PID 868 wrote to memory of 2368 868 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe DesktopLayer.exe PID 868 wrote to memory of 2368 868 97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe DesktopLayer.exe PID 2368 wrote to memory of 2264 2368 DesktopLayer.exe iexplore.exe PID 2368 wrote to memory of 2264 2368 DesktopLayer.exe iexplore.exe PID 2264 wrote to memory of 556 2264 iexplore.exe IEXPLORE.EXE PID 2264 wrote to memory of 556 2264 iexplore.exe IEXPLORE.EXE PID 2264 wrote to memory of 556 2264 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe"C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387a.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exeC:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:868 -
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:2368 -
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:2264 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2264 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:556
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5e32d02ce684c01ef3af05fae9066160e
SHA129c7a6e8ed553ac2765634265d1db041d6d422ec
SHA256b00322d178a6cfc206458c26b26d6c80596073bb3283dcc3fc4e33a4b5f29d71
SHA512e4e3175fb131095e4681ecb76d14dc74d059c0beafb6340965516c6d3d0538deb314b36a3f09df03b491edac84d5c0580e764fed1d8bca9abd4e65cb56167148
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize434B
MD524cc5c772abd96accbbdc306a33edee9
SHA145f311a86b2ceba1f36d7a94152311d1ca08707e
SHA25624fcf40f7eab2cb43b741252becf4fc1f2603a062cd7a912f447094ba8ed6416
SHA5121b49012951e0eba23efcc26e8139a013507d8d5a33ec58a4ad8886c860a9767844ab1ef1bfc38f668a24b04a5a90f0d442c38d1b20238a27b0c8430bbf57a006
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C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\97082cdd21315b24be3fab3cf5043a87985d6dd4191437e3a6a8401e1785387aSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
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Filesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
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Filesize
67KB
MD58fef2ddc02a88527acf5f875aa79590a
SHA1b3ebe53a0037789c155992eee0547de1a76712b9
SHA2565b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50
SHA5127f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de
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Filesize
67KB
MD58fef2ddc02a88527acf5f875aa79590a
SHA1b3ebe53a0037789c155992eee0547de1a76712b9
SHA2565b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50
SHA5127f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de