Analysis
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max time kernel
42s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 02:04
Static task
static1
Behavioral task
behavioral1
Sample
4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe
Resource
win7-20221111-en
General
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Target
4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe
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Size
932KB
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MD5
a292a54ec24a89c875cac6202a7f84b2
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SHA1
2538b46e3c6d4a94d4dc1c7c522547e512725fb1
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SHA256
4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6
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SHA512
918afc7859c58ae29f782875c3b9b1afc6cc00ae8fe89c75d6ef0e000b0cdf0062b78b03cc7e542093dc1872800c784306143ebd6f569cec7eea0902f91e7d67
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SSDEEP
24576:h1OYdaOKCZ/iWCvu/2sWsJA/jlt+DHhss:h1Os8CpYO/dJJDHhss
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
BkUmCcLz1F934AW.exepid process 1504 BkUmCcLz1F934AW.exe -
Loads dropped DLL 1 IoCs
Processes:
4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exepid process 1508 4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.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 3 IoCs
Processes:
BkUmCcLz1F934AW.exedescription ioc process File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\bflfjmpjniblmooecjikjgjmedacbnjd\2.0\manifest.json BkUmCcLz1F934AW.exe File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\bflfjmpjniblmooecjikjgjmedacbnjd\2.0\manifest.json BkUmCcLz1F934AW.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\bflfjmpjniblmooecjikjgjmedacbnjd\2.0\manifest.json BkUmCcLz1F934AW.exe -
Drops file in System32 directory 4 IoCs
Processes:
BkUmCcLz1F934AW.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI BkUmCcLz1F934AW.exe File opened for modification C:\Windows\System32\GroupPolicy BkUmCcLz1F934AW.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini BkUmCcLz1F934AW.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol BkUmCcLz1F934AW.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
BkUmCcLz1F934AW.exepid process 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe 1504 BkUmCcLz1F934AW.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
BkUmCcLz1F934AW.exedescription pid process Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe Token: SeDebugPrivilege 1504 BkUmCcLz1F934AW.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exedescription pid process target process PID 1508 wrote to memory of 1504 1508 4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe BkUmCcLz1F934AW.exe PID 1508 wrote to memory of 1504 1508 4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe BkUmCcLz1F934AW.exe PID 1508 wrote to memory of 1504 1508 4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe BkUmCcLz1F934AW.exe PID 1508 wrote to memory of 1504 1508 4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe BkUmCcLz1F934AW.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe"C:\Users\Admin\AppData\Local\Temp\4716fe9a5874ea0a189c718468ffacd77cc3b1d5c3b9477d2c2c73e4d492d5c6.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\BkUmCcLz1F934AW.exe.\BkUmCcLz1F934AW.exe2⤵
- Executes dropped EXE
- Drops Chrome extension
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\BkUmCcLz1F934AW.datFilesize
1KB
MD5fae277768a15c76f34adbf38a8c2e741
SHA16eda741980208d0d5babbbdca930470292e73b96
SHA256f817ad1469c6b68fd82e36d4d18c9ceb372cd77ef2f426c017f626c11a81c6b0
SHA5128f8657ac5830a8ffd17f71570451c6f7da0b78a85f896467375f7770df82f9303da13ca70b6bcad04fb8b7daef8a48c360f674d7d4d173090495c1ede2bf6eb1
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\BkUmCcLz1F934AW.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\bflfjmpjniblmooecjikjgjmedacbnjd\background.htmlFilesize
145B
MD51ffc5f1c283ad51ab84faafb03ccd89c
SHA138e10f0c8ab4b5c266dabd0a98c24237d32c6fa3
SHA256613f22bb2efcead3b65294d3a9784455f3efe2637e3207fc01ce2a112a7b41b0
SHA5126b87ee961b217eb4eeebfffae7dd2a0a8ea08f9b772b5790edc4a1fdee37857472213c9c2f0c52e5c94bf8141017bfc8ab5c19776bec06aabb94dfa2d35f9e57
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\bflfjmpjniblmooecjikjgjmedacbnjd\content.jsFilesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\bflfjmpjniblmooecjikjgjmedacbnjd\lsdb.jsFilesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\bflfjmpjniblmooecjikjgjmedacbnjd\manifest.jsonFilesize
498B
MD5640199ea4621e34510de919f6a54436f
SHA1dc65dbfad02bd2688030bd56ca1cab85917a9937
SHA256e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
SHA512d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\bflfjmpjniblmooecjikjgjmedacbnjd\zVkOZuri.jsFilesize
6KB
MD587a3b88a4da633614ec2689efabc1efd
SHA1cf3652679a4c1bd585bc3df69db64acd87d3dbf3
SHA256ab717ca494bf249388ed9663454b7a682786c759b5a82b3879f9a4903d645080
SHA51240901ea36a5aa5a8f106a40a23afe70cfe4c2e5abe3f97885b884d751184242a84228f98fe35af3c4f0734adf909f1b61799502a69b41579587993738745c5fd
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\[email protected]\bootstrap.jsFilesize
2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\[email protected]\chrome.manifestFilesize
35B
MD50d4cece782c0599405d45ad1c089d36c
SHA1efec9c5e61a2846ea9f4d7c7b96e792d7d2b4545
SHA256a2c2de6b83074c859ee6fa83c773966f1cd2e33d1fa7a8d7b7d684b2aa537cd4
SHA5126d6a6595c825b1c77d8e3bef021caeac1bb4cd59dbc8d678191f8e00376ebca86764146c789b3f78a6329077b2e4afea323d71a3d446489a56bb0419e95ee7e9
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\[email protected]\content\bg.jsFilesize
9KB
MD5a3ceb34f57d3b7a1fd4d2e31deac6f03
SHA16c00f895e4da46e01d9204cdff0d3bd7b3c54325
SHA2566a4c5b7843e2e0d3af2d6f9f82940b5b8e9bb52d9a0e4774611cee60189bc298
SHA51216d33cdd6cd4327b1b7e99dd6cdcdf1c595233cef267f3e80e4a4fa865e7015e6ee72f00c10ba8dd4f44ac76488b7a4e6a16a6bfd7cb12ba51d31106e6f0d424
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C:\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\[email protected]\install.rdfFilesize
595B
MD5ef601d0e1c26f41286ecd4186dcc4706
SHA176f377fada5225ce2dc0b826b907095f9c79fc99
SHA256d78e993d1e9082c00c8e5c49c73de096ba119e91d76d022cfeb50032e442f2cd
SHA512ef1a15e11b6eb193d11e0397f2a755dd51387206b0723e4fc2fa58173438a8398fed998fcbd756bad2558ca786e6287f90a20a6fbd32c61046f1dfbc9486ea8f
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\Users\Admin\AppData\Local\Temp\7zSA94B.tmp\BkUmCcLz1F934AW.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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memory/1504-56-0x0000000000000000-mapping.dmp
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memory/1508-54-0x0000000075781000-0x0000000075783000-memory.dmpFilesize
8KB