Analysis
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max time kernel
120s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
25-05-2024 04:57
Static task
static1
Behavioral task
behavioral1
Sample
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe
Resource
win7-20240221-en
General
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Target
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe
-
Size
2.0MB
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MD5
40e7ff44884592b0085a242b51824806
-
SHA1
1e453cd0506933dde3bfaf9f821cb8f404118c56
-
SHA256
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa
-
SHA512
a05995d62d0d8cb596bebb1937203db1d5be01329f9df6fc3accfd46ac37dc9390d8824b383d995cb5cd6c446d4783e105f25cca183a2dd6396fcdf7551de3be
-
SSDEEP
49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 10 IoCs
Processes:
resource yara_rule behavioral1/memory/2104-2-0x0000000002EA0000-0x0000000002FE9000-memory.dmp family_vidar_v7 behavioral1/memory/2596-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-23-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-24-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-172-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-193-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-230-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2596-251-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat755F.tmppid process 2596 kat755F.tmp -
Loads dropped DLL 2 IoCs
Processes:
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exepid process 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exedescription pid process target process PID 2104 set thread context of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat755F.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat755F.tmp -
Processes:
kat755F.tmpdescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 0f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a8090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703085300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc30b00000001000000120000004400690067006900430065007200740000001d00000001000000100000008f76b981d528ad4770088245e2031b630300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc252000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a kat755F.tmp Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 kat755F.tmp Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25 kat755F.tmp -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
kat755F.tmppid process 2596 kat755F.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exedescription pid process target process PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp PID 2104 wrote to memory of 2596 2104 8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe kat755F.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe"C:\Users\Admin\AppData\Local\Temp\8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat755F.tmpC:\Users\Admin\AppData\Local\Temp\kat755F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015Filesize
344B
MD5e17f4d94738a8a5dabc066fc62bf557d
SHA1a3c6cce769cc2623fbba7f626cc3493c45a35bcd
SHA256995fe84ef9f87a5c7f2f6c4bdd1984ba023ba59caad60389b5b33a00ff3a860b
SHA512ce341cb078b45a6004ed263ba667c3d1e2317d7a624ba89c15651011861a26f0638826f4a2c580d6ddb36145e8ecdac23fd4b9d2fccf7f6922876e46f860b729
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C:\Users\Admin\AppData\Local\Temp\Tar7E1C.tmpFilesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
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C:\Users\Admin\AppData\Local\Temp\kat755F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2104-0-0x00000000003B0000-0x00000000003B1000-memory.dmpFilesize
4KB
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memory/2104-2-0x0000000002EA0000-0x0000000002FE9000-memory.dmpFilesize
1.3MB
-
memory/2104-20-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2596-11-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-13-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-24-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-23-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-172-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-193-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-216-0x00000000260D0000-0x000000002632F000-memory.dmpFilesize
2.4MB
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memory/2596-230-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2596-251-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB