Analysis
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max time kernel
134s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 18:58
Static task
static1
Behavioral task
behavioral1
Sample
cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe
Resource
win7-20220901-en
General
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Target
cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe
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Size
931KB
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MD5
c481b4fa9ff2d82c73f6278346ece961
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SHA1
dbdf55425fed11c8b60231a8eec1aef93b1598e8
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SHA256
cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e
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SHA512
e7ab7e34c58dd32021d635c3fdbe6772149a7ebd0c46970a8d8d71c26ddddffae1366e46bc43e2ec92249fb518ae9d38473880bc180cf8cee22c6ae08273fdc1
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SSDEEP
24576:h1OYdaOICZ/iWCvu/2sWsJA/jlt+DHhsa:h1OseCpYO/dJJDHhsa
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
b72BiFcu9i2f8QG.exepid process 4136 b72BiFcu9i2f8QG.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:
b72BiFcu9i2f8QG.exedescription ioc process File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkombflincbdngohkfeefnmalfjlibec\1.3\manifest.json b72BiFcu9i2f8QG.exe File created C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkombflincbdngohkfeefnmalfjlibec\1.3\manifest.json b72BiFcu9i2f8QG.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkombflincbdngohkfeefnmalfjlibec\1.3\manifest.json b72BiFcu9i2f8QG.exe File created C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkombflincbdngohkfeefnmalfjlibec\1.3\manifest.json b72BiFcu9i2f8QG.exe File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkombflincbdngohkfeefnmalfjlibec\1.3\manifest.json b72BiFcu9i2f8QG.exe -
Drops file in System32 directory 4 IoCs
Processes:
b72BiFcu9i2f8QG.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy b72BiFcu9i2f8QG.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini b72BiFcu9i2f8QG.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol b72BiFcu9i2f8QG.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI b72BiFcu9i2f8QG.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
b72BiFcu9i2f8QG.exepid process 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe 4136 b72BiFcu9i2f8QG.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exedescription pid process target process PID 940 wrote to memory of 4136 940 cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe b72BiFcu9i2f8QG.exe PID 940 wrote to memory of 4136 940 cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe b72BiFcu9i2f8QG.exe PID 940 wrote to memory of 4136 940 cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe b72BiFcu9i2f8QG.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe"C:\Users\Admin\AppData\Local\Temp\cf8e308b792229cde00a37ae204cf5b4e5938a520a9b43d89036fc3208d0965e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:940 -
C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\b72BiFcu9i2f8QG.exe.\b72BiFcu9i2f8QG.exe2⤵
- Executes dropped EXE
- Drops Chrome extension
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:4136
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:5028
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:5004
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\b72BiFcu9i2f8QG.datFilesize
1KB
MD523c58f77f3887056bbffc46af27ff2f5
SHA1bfd1b3ef4452d6f12039fec90d1399dd2ad9efbe
SHA25679787e9e6a16fe334f097d86f31ef9a4ebd33e9d5158ed02ed16eb83c08073a8
SHA512853c473dd9e8528100ca924cb0e633bab6ae4155b363e0ff86137993ab064f5d576113b0ce51424044633cf854753c8d0cc1e24077506c39c7a18d97dd1ddfc2
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\b72BiFcu9i2f8QG.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\b72BiFcu9i2f8QG.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\jkombflincbdngohkfeefnmalfjlibec\WC2p6Oj9.jsFilesize
6KB
MD5bf485a68d22433d83894f2d2028961a3
SHA103b323feabae788cb52cf57ebadd5a12ecd18e06
SHA256f78a599fab1c32f02dc906c02afd762f34057bafbdf2dfdca5876bf042e9918b
SHA512275579f979abf7db9781260b09a251b4acb86fc75e388b066f1d0b8aeb2fec84d01df5d60c5a119ff472c8b103088c3b820d9d684a68671adb42ba35f37a1cfa
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\jkombflincbdngohkfeefnmalfjlibec\background.htmlFilesize
145B
MD5290d39f392abeeeaea8c590fa9d38817
SHA1c8c8c26093b64b5781e67ccca5f0a537cf079747
SHA2568562b9a8c17c447aaf0c5c220c0bb19679037951bcf0a685dccfb7905082c6e5
SHA5129b5c2a9ee69c071f208fd6c1d9fdc31cfcd005f8562c25579eb611343f3f2fac16f6dba0d22fc52f8834b0b2ac927f140d4f69b033ec42c826fd0322db0376a8
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\jkombflincbdngohkfeefnmalfjlibec\content.jsFilesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\jkombflincbdngohkfeefnmalfjlibec\lsdb.jsFilesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\jkombflincbdngohkfeefnmalfjlibec\manifest.jsonFilesize
498B
MD5664e2884e17f23553a19eee317642194
SHA1a28ccc088d6b6692646150f3e8f111e568723fb4
SHA256ee4ef853224cde2aa7e54351c02bc811af939202b82e19cbd1cc011fc3565191
SHA512b2cef8c4dfb6a0648f21c53393b982c9171d8a0344a94970c13866ebd2870de2cd99dab5984000b10802c54a748230104c7997c3d2cd3ac5e97c9355a4cb7ecb
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\[email protected]\bootstrap.jsFilesize
2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\[email protected]\chrome.manifestFilesize
35B
MD5178d719e2aad915995a81bac04b761cf
SHA11ccc1e3793a69e4ef97d731f8d2fbd792ead8246
SHA256e7960c0692bc2ef3758b2e87fa4b5b3b5ba47c986deb2fc65e6cdf9da0715662
SHA5128351ea6871bd9df97746ed364bf86e4b5c4fc553df11bd8ab3e3ffb99eae458b80bb546dfb1867c2cc17b53e6c014e36d5d8312541e0403f6aeb4cd4ce981366
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\[email protected]\content\bg.jsFilesize
9KB
MD52fed2b0e15f0d51e49fb3dd890c9524e
SHA1850a4f28ba1c1ce49c20b403fb3211762060203a
SHA25606f3b9ce61d2e0594782e9241cf2812b284412e865483c3cf8bbabf6fe42dc2c
SHA512ad412b46c37a1c50f3f3f6cb7bd15a9e56bd1510a03580731bf8b21970958b7d9ff36d8c4cf5975923eedd064ca570e9653d8672cfbd211418b6ea326c9013da
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C:\Users\Admin\AppData\Local\Temp\7zSD15E.tmp\[email protected]\install.rdfFilesize
591B
MD5a696a7a56e907586fef2b199182edc52
SHA1746b2bea5ccd7b69ecf897ad75d3b2f2c1fd0c8f
SHA256e8adc086373b5542c9879e0f8756686b02f77c2464c347e1d3d37b5af9f85007
SHA512e1423f6913e05f855d81319fde0f1a4367575e874387e6b1204956bcdc01191b42229c9114e75447f442d218c8852aa2138c2c55b7d45f708e1c45e7f2fa75f6
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memory/4136-132-0x0000000000000000-mapping.dmp