Analysis
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max time kernel
201s -
max time network
222s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 01:55
Static task
static1
Behavioral task
behavioral1
Sample
4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe
Resource
win7-20220901-en
General
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Target
4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe
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Size
932KB
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MD5
259190031ffd49e134e3e6d420d7c3b4
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SHA1
302a6827bd64766ec768c87fcfdaafa6532124b3
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SHA256
4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166
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SHA512
5371159b50425505dbb27f7c2c4bf520595d2778bc728d43b9420313eaf4b2c882da357373cdfd9a112af4a37b36d59c0af9f98bf0c37eb7bb7b67ab4d5bfdf1
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SSDEEP
24576:h1OYdaO/CZ/iWCvu/2sWsJA/jlt+DHhsa:h1OshCpYO/dJJDHhsa
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
GuhbGxR4500JK1E.exepid process 4884 GuhbGxR4500JK1E.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:
GuhbGxR4500JK1E.exedescription ioc process File created C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbhpknflpknnfkhfijikbjpoicbfmcbo\2.0\manifest.json GuhbGxR4500JK1E.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbhpknflpknnfkhfijikbjpoicbfmcbo\2.0\manifest.json GuhbGxR4500JK1E.exe File created C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbhpknflpknnfkhfijikbjpoicbfmcbo\2.0\manifest.json GuhbGxR4500JK1E.exe File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbhpknflpknnfkhfijikbjpoicbfmcbo\2.0\manifest.json GuhbGxR4500JK1E.exe File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbhpknflpknnfkhfijikbjpoicbfmcbo\2.0\manifest.json GuhbGxR4500JK1E.exe -
Drops file in System32 directory 4 IoCs
Processes:
GuhbGxR4500JK1E.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy GuhbGxR4500JK1E.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini GuhbGxR4500JK1E.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol GuhbGxR4500JK1E.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI GuhbGxR4500JK1E.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
GuhbGxR4500JK1E.exepid process 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe 4884 GuhbGxR4500JK1E.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
GuhbGxR4500JK1E.exedescription pid process Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe Token: SeDebugPrivilege 4884 GuhbGxR4500JK1E.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exedescription pid process target process PID 4928 wrote to memory of 4884 4928 4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe GuhbGxR4500JK1E.exe PID 4928 wrote to memory of 4884 4928 4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe GuhbGxR4500JK1E.exe PID 4928 wrote to memory of 4884 4928 4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe GuhbGxR4500JK1E.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe"C:\Users\Admin\AppData\Local\Temp\4a5689139d932422d019be6037970eafb92a2eb71bf531ca4dc70c7816860166.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\GuhbGxR4500JK1E.exe.\GuhbGxR4500JK1E.exe2⤵
- Executes dropped EXE
- Drops Chrome extension
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\[email protected]\bootstrap.jsFilesize
2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\[email protected]\chrome.manifestFilesize
35B
MD543d21e51b22816047c8173b58be98de8
SHA1432640de755e6b78eb1ca1a75d88fca04e69def5
SHA2565f2f4e6e86b8f5abce509de2589eb8d62a4e444b03beda9e0b812467affa2655
SHA512f734dd34ece50a4b0a7488c620c1af84632b3556a9189608a0792e9ddc42f61da312970eec6def8f436b1eaff9ba772f8fda1e9b597e0e540ed9c4e268b18a28
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\[email protected]\content\bg.jsFilesize
9KB
MD599eff0d388ee9a7cad85cf8e15bce6bf
SHA1bf017e9adf25f129da6106a3b1632b3349c4925e
SHA25677e7bac7d45627ce3f1f71f44292869ca1240cc640f9eb5cea5657c940e1facb
SHA5128072ad28da2a8fb55c0b6459fdbf41644af8e8f3d183130d822815414f689f41c21b35b1766f73aeca579bc183f65d6f637f9bc4ea42d8bb6f9122f184324ea2
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\[email protected]\install.rdfFilesize
597B
MD564162e7216400baebedf2e2334b94532
SHA188bc5531f71bcbe8281f0b1389a69d4816470a5e
SHA2566d236aa0915808376e1fa4c793115a919059a5c19aca1a37f1675f76bb1377c7
SHA51216946c35bec32752c9b833ece333ae5cde1270d06709ef0084e5d4603883ee0b879400d73a664fea15f1eedc867fcf7953be6a28959428a91cdea380ee907212
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\GuhbGxR4500JK1E.datFilesize
1KB
MD5348952639f0c12ce563001c05d5a4628
SHA1b4e6c38df086c2f41373d6f48c839a51c1b8da89
SHA256979f62d5584921aa48ae37e84a01760c3359f7a88d5c3f54d252aff738a62773
SHA5124e8ec70cefd2a098701ca6d98cf38dfac5a4587091b8f04bc30f8478bff6d61f5842c4b2ebc8f2945bbbff093c32e02a2b2031649f803aacf4c74088db48d4d0
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\GuhbGxR4500JK1E.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\GuhbGxR4500JK1E.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\gbhpknflpknnfkhfijikbjpoicbfmcbo\PNIUtZ.jsFilesize
6KB
MD50cd6285575666b7c51e4ea64d737ca99
SHA1e8d71a07ca93237df167b55ea1f3c38de41af67d
SHA2569c117eac6d5c7ad6c0595c2e9f5605a34735c48562d1303a0146829479601239
SHA512f68e38275cbd08fe2ba90424509986eed205c7efc20b621a76e8fb849a58f2c915274ec56343cc26c6ce42adeb87716c5ce5ee85f0165531d6599ddb0f147df5
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\gbhpknflpknnfkhfijikbjpoicbfmcbo\background.htmlFilesize
143B
MD56cc67448abdc9baf6c995dedcd9c3c7c
SHA1aae8426595c1ac39cb2129a601fa668c6a21cb3d
SHA256b2674559cbc07f4fcb0678b2a83858302df44bf91727b520430f2aa09fc79996
SHA5120c1a001d8cbaddfecea32fd807d3785a02fecfe83bafc83d46d7da6e84a3ba55d4474ef701e351956082595bf7de6e1b634f4e480b33f3ae02cf077f03d47389
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\gbhpknflpknnfkhfijikbjpoicbfmcbo\content.jsFilesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\gbhpknflpknnfkhfijikbjpoicbfmcbo\lsdb.jsFilesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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C:\Users\Admin\AppData\Local\Temp\7zS7A21.tmp\gbhpknflpknnfkhfijikbjpoicbfmcbo\manifest.jsonFilesize
498B
MD5640199ea4621e34510de919f6a54436f
SHA1dc65dbfad02bd2688030bd56ca1cab85917a9937
SHA256e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
SHA512d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a
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memory/4884-132-0x0000000000000000-mapping.dmp