Analysis
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max time kernel
40s -
max time network
82s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24-11-2022 21:18
Static task
static1
Behavioral task
behavioral1
Sample
a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe
Resource
win7-20221111-en
General
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Target
a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe
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Size
931KB
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MD5
26529e29e345d92f6ca360f12d394511
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SHA1
8b15041a5c001172f9a051b11ef1b6c93cddaaa2
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SHA256
a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43
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SHA512
becdd5ae6ec44facbb340ecd2c6a0232876a10ba9947cdf7f4e3ff4887d6094e88f1a4fc17a6de08a6c6cfa98c2335c1ce790da23b978adf5b957c441721533e
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SSDEEP
24576:h1OYdaO/CZ/iWCvu/2sWsJA/jlt+DHhss:h1OsxCpYO/dJJDHhss
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
B4wzAV4rTaxJazc.exepid process 556 B4wzAV4rTaxJazc.exe -
Loads dropped DLL 1 IoCs
Processes:
a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exepid process 1236 a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.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:
B4wzAV4rTaxJazc.exedescription ioc process File created C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\nfkmnijhchfgihlmpmlmlcmnbnkolkel\2.0\manifest.json B4wzAV4rTaxJazc.exe File created C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\nfkmnijhchfgihlmpmlmlcmnbnkolkel\2.0\manifest.json B4wzAV4rTaxJazc.exe File created C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\nfkmnijhchfgihlmpmlmlcmnbnkolkel\2.0\manifest.json B4wzAV4rTaxJazc.exe -
Drops file in System32 directory 4 IoCs
Processes:
B4wzAV4rTaxJazc.exedescription ioc process File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini B4wzAV4rTaxJazc.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol B4wzAV4rTaxJazc.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI B4wzAV4rTaxJazc.exe File opened for modification C:\Windows\System32\GroupPolicy B4wzAV4rTaxJazc.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
B4wzAV4rTaxJazc.exepid process 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe 556 B4wzAV4rTaxJazc.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
B4wzAV4rTaxJazc.exedescription pid process Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe Token: SeDebugPrivilege 556 B4wzAV4rTaxJazc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exedescription pid process target process PID 1236 wrote to memory of 556 1236 a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe B4wzAV4rTaxJazc.exe PID 1236 wrote to memory of 556 1236 a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe B4wzAV4rTaxJazc.exe PID 1236 wrote to memory of 556 1236 a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe B4wzAV4rTaxJazc.exe PID 1236 wrote to memory of 556 1236 a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe B4wzAV4rTaxJazc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe"C:\Users\Admin\AppData\Local\Temp\a466881849f9be7370d35bb14158ce974dddf73fc0893f08aef94d5c2f528c43.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\B4wzAV4rTaxJazc.exe.\B4wzAV4rTaxJazc.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\7zSAA06.tmp\B4wzAV4rTaxJazc.datFilesize
1KB
MD53c1d7391cea6f5ae61ab226695a69518
SHA19df664ac83386203bbec949a677a6e04483b088f
SHA2569b44ad65c763a499c0ed49795e4033dfb01f436f87f29a81a29548d8bc710d77
SHA51212baf5166cbe3e55b793721067acaefc43dda282f907e7f1d5af715435e427c2c64c544905d5a4faf1374662912c831b7b80e785f5e1abc4642132b697f0a90b
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\B4wzAV4rTaxJazc.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\nfkmnijhchfgihlmpmlmlcmnbnkolkel\background.htmlFilesize
145B
MD527ec4275d73c55eb6fbfadd77ee480f7
SHA1d4e4ef90a762df3251d26704e4ce20e182595ce9
SHA256c0314c2e28e16a00927a7020f8861ce6350492d6815e25e854cc97aabcf354cc
SHA5127d2f8dd0c71608bc2c33dba29fea94e53ac186b921aba7eee880324f4f0c94a939d063e8405a3971cc45b692d930a6edfaf1971219eb511a4997a553eb9fa598
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\nfkmnijhchfgihlmpmlmlcmnbnkolkel\content.jsFilesize
144B
MD5fca19198fd8af21016a8b1dec7980002
SHA1fd01a47d14004e17a625efe66cc46a06c786cf40
SHA256332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a
SHA51260f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\nfkmnijhchfgihlmpmlmlcmnbnkolkel\lsdb.jsFilesize
531B
MD536d98318ab2b3b2585a30984db328afb
SHA1f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5
SHA256ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7
SHA5126f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\nfkmnijhchfgihlmpmlmlcmnbnkolkel\manifest.jsonFilesize
498B
MD5640199ea4621e34510de919f6a54436f
SHA1dc65dbfad02bd2688030bd56ca1cab85917a9937
SHA256e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af
SHA512d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\nfkmnijhchfgihlmpmlmlcmnbnkolkel\s77suGkv.jsFilesize
6KB
MD5f6ba9a9fb45677c8a26e23da7c308a29
SHA14b950499996f208dd123ef8815d49d2f83ac0264
SHA25603903519e6fd61968de42438b5d3d10c45a15a36fdfed611e50237ac7e8dd2bc
SHA5128bbb580031a4a30103df4b874d0184aee10e6e8baaec4273f46cf63739fe366b9b18be55625f8eca999bcd021ab89b4ddeccb94a227fc2100a271a0799a96b53
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\[email protected]\bootstrap.jsFilesize
2KB
MD5df13f711e20e9c80171846d4f2f7ae06
SHA156d29cda58427efe0e21d3880d39eb1b0ef60bee
SHA2566c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4
SHA5126c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\[email protected]\chrome.manifestFilesize
35B
MD55d8b97d39ca0c0fdc002e1645ab42f78
SHA1d401cad5a1bfaecc098119ff405a213cf22bef67
SHA2564bbc9301c7f9dc914b7ee7d03ec011184999a59a78806f1a83c24001cd236b55
SHA5128c14debc1c261b6102c073497d5a1fb058a2bb1f1fb75ff65348cea4fa8d45a49a4bd417753131c49f93172dbe59cfb80d0c951abced3635ea68198999108358
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\[email protected]\content\bg.jsFilesize
8KB
MD51b80aae4845c79e20dd67d4cab18e9c4
SHA1b1a71fd13d8e8186ed28c7c2afa18d910c0a5cc9
SHA256f901da96c1ea6f410f2d1e42b0f68eb746226ef916587486b0c37f32f1db3dea
SHA5124d266900e02df6acff8099b20e22d528afe7c99fd3c1019ff14b3020e60950b5fb6094999255e4102fb675774e706c26530690cbd21335832ad2f732324d8728
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C:\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\[email protected]\install.rdfFilesize
593B
MD5ef95df780a882057f8dd3635301d4cb4
SHA1d70a3e20a30fc48e45be673d17df9a112b926c6d
SHA256eff12e21195a7777683e2e9e88e405020dd69e5d69867e1c6b4b07896cf249fa
SHA512c8e8a0565d9fed1da0fb830e6dfa2509067f53cf6a1e0584fc386724637e2c195e3e24c5409cbc6241397e82e8c6a7fa83d60275f0f826b05afe727eb950a41d
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\Users\Admin\AppData\Local\Temp\7zSAA06.tmp\B4wzAV4rTaxJazc.exeFilesize
772KB
MD55ed7019dcd0008dbcd8e54017b8c7dd9
SHA17e4457da2ff06c2170bad636c9eb7c1bb436fd06
SHA2567f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7
SHA51210cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db
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memory/556-56-0x0000000000000000-mapping.dmp
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memory/1236-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmpFilesize
8KB