Analysis
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max time kernel
175s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 19:35
Static task
static1
Behavioral task
behavioral1
Sample
c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe
Resource
win7-20221111-en
General
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Target
c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe
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Size
920KB
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MD5
9d95883f6e9a19e1fcca6c425c26490a
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SHA1
5d0023af9cc3f58f99dfef16d97698efa0a6aebe
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SHA256
c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30
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SHA512
63b883b72f2647d4cb95d08cc87e0c047938ff115620f90a44ae42f519db7059e4621e3bc991e2f87ffdbda8045c11d9226433878cd86bb7cce8c6ef666221d4
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SSDEEP
24576:h1OYdaOOMtdHAqcdDVhYwiei7+EpFAh/kKN:h1OsHPHVmVhYwiLtKkKN
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
OocubrNokeLSKaE.exepid process 1144 OocubrNokeLSKaE.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops Chrome extension 5 IoCs
Processes:
OocubrNokeLSKaE.exedescription ioc process File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\abhkmioildonbidlcgnohijemahjfeme\2.0\manifest.json OocubrNokeLSKaE.exe File created C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\abhkmioildonbidlcgnohijemahjfeme\2.0\manifest.json OocubrNokeLSKaE.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\abhkmioildonbidlcgnohijemahjfeme\2.0\manifest.json OocubrNokeLSKaE.exe File created C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\abhkmioildonbidlcgnohijemahjfeme\2.0\manifest.json OocubrNokeLSKaE.exe File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\abhkmioildonbidlcgnohijemahjfeme\2.0\manifest.json OocubrNokeLSKaE.exe -
Drops file in System32 directory 4 IoCs
Processes:
OocubrNokeLSKaE.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy OocubrNokeLSKaE.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini OocubrNokeLSKaE.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol OocubrNokeLSKaE.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI OocubrNokeLSKaE.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
OocubrNokeLSKaE.exepid process 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe 1144 OocubrNokeLSKaE.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
OocubrNokeLSKaE.exedescription pid process Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe Token: SeDebugPrivilege 1144 OocubrNokeLSKaE.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exedescription pid process target process PID 916 wrote to memory of 1144 916 c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe OocubrNokeLSKaE.exe PID 916 wrote to memory of 1144 916 c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe OocubrNokeLSKaE.exe PID 916 wrote to memory of 1144 916 c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe OocubrNokeLSKaE.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe"C:\Users\Admin\AppData\Local\Temp\c4a302583a771d4f2a61c5f27d131b41d028fdd0ac5808de18898e60362c7c30.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:916 -
C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\OocubrNokeLSKaE.exe.\OocubrNokeLSKaE.exe2⤵
- Executes dropped EXE
- Drops Chrome extension
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1144
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3180
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4756
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\[email protected]\bootstrap.jsFilesize
2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\[email protected]\chrome.manifestFilesize
35B
MD5a9aa370aa29c4606528cc589a3f440c1
SHA1fc1afb79812887617a0e5f8752e508cd5205d00a
SHA256fcf63da12e62712475ceac134a40c161a1e4aea858d120d875d52e15312f6d49
SHA512bc078b1f53fd99fb03d61ba5d3b7ce5b221534f58e304198e62ad864a0e61997b38855a20d4035c4140094ba978d196ddb11327040392d87c866407722533698
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\[email protected]\content\bg.jsFilesize
8KB
MD5ffedde3969e81e2b9e2fd10d127cab20
SHA1ba11aebcbe2e593557c2c073ff112773e0e8d6fe
SHA256b68ebce66b1c6d2b62e11e245b63ad65a27add57e887fd2654a0a642e77192bd
SHA5120e32a1df477ee5846d74c42a835c86ff4a7df80c62282b38607d447c99887fe3eccbd3f040c8ab3362b59d018e3da0b856202045dcf1bd18e0c5828567e09a9e
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\[email protected]\install.rdfFilesize
591B
MD5b4066570e0b9b1686bbac490c598ba75
SHA108fc851bd6817de745554271995b8097dc04efad
SHA25691407fea2608ea9c59efd8d4f3edf01582ac9c1ac97da0d9548aafa564eb8a3a
SHA512d4b892dc9a631d76c17e6f1ea0cc0d25d841068dc208ae72fafaa9ef3171fd9bc55762b6088feb291bc42e338f2ec75d5ca8eb45df4d744622e94f85f1b98180
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\OocubrNokeLSKaE.datFilesize
1KB
MD5cc319219114c831dd76abd191202c178
SHA197313d319298568425f9d182d65033b6347845f3
SHA256f28f5d5d403c10db4faf63292f8f0908d4c1de979d7f1d6f05da34c52754f0b3
SHA51252bfab5d6cf57bc739eab0175a296cd6230e8fac945f91df6a7376e40499c49cfe0ca7f0464c0edc63a67af2c6506180e6971b3b0798b6df31c2ef86af34053b
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\OocubrNokeLSKaE.exeFilesize
760KB
MD5dcd148f6f3af3e3b0935c4fcc9f41811
SHA1ee9bdbc7c568c7832d90b85921ab20030b6734cd
SHA256f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4
SHA51234be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\OocubrNokeLSKaE.exeFilesize
760KB
MD5dcd148f6f3af3e3b0935c4fcc9f41811
SHA1ee9bdbc7c568c7832d90b85921ab20030b6734cd
SHA256f8689641199c6fc430121797965485d95abfbc430753e0e668817ab3b511a1e4
SHA51234be8e60dc2decf8287a71516f359e80bb858ce52218dde1b01c821c9b95be38821f068b79b0da8dbe90865560e7ddab77b25e3971dda9be667fb3ae8f174886
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\abhkmioildonbidlcgnohijemahjfeme\P0Q.jsFilesize
6KB
MD579f199a3f2a9131b928a0c605235a5b0
SHA19598e53da77babd8bf16d937bc83284e639e19d5
SHA25632f581da089700cb7ee78a9dcfd5417aa013b810fee2f3b7372a15bafda18977
SHA512f88d7caf1189b33794961f1d02f7ce2a2f5a0ad438edc44b106ee1840ad29df71d68e4d8736c8c6cb6cf7a8b38b3825e49fdf7afd443e24c8500a18de16ebfda
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\abhkmioildonbidlcgnohijemahjfeme\background.htmlFilesize
140B
MD54a5e9725b1b8701d6776e479689e0b99
SHA191afe9e2455858d0f07ef7ceb89ecd4f36a3c511
SHA2565a854d777c5c58442000d750fdf1f25bb91d2ba711b074755f7f09713b4828b8
SHA512d104ee0276ba19952e95fe4bb3059bcaf293b41a3623419d81fdd15e92839b547144f9622be6bfe072c0610b2ddf064cd5bfc0674e17a0f72b359bdb39b20206
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\abhkmioildonbidlcgnohijemahjfeme\content.jsFilesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\abhkmioildonbidlcgnohijemahjfeme\lsdb.jsFilesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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C:\Users\Admin\AppData\Local\Temp\7zS7D.tmp\abhkmioildonbidlcgnohijemahjfeme\manifest.jsonFilesize
498B
MD5640199ea4621e34510de919f6a54436f
SHA1dc65dbfad02bd2688030bd56ca1cab85917a9937
SHA256e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
SHA512d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a
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memory/1144-132-0x0000000000000000-mapping.dmp