Analysis
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max time kernel
143s -
max time network
133s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
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submitted
01-11-2024 11:44
General
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Target
2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe
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Size
4.5MB
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MD5
3896fa2ab4539a91fad7d1a46c308bc0
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SHA1
a244b793529a53b0128df75440442aeec0373359
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SHA256
a57d751a69a9e69f71c50a14136336370ed172106f4c11ea790d1a8136c7ed64
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SHA512
765b0a7ebdbfa13df3023a851db3dd68395bb2ff9a64f06933c91499a2e661b2d98f7e6e290afb299464f86683e5a7fc123f4d48030acf6c7e67d0fc9389da6b
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SSDEEP
98304:fWqq+Mb+VyWvjIy5YFWAvwzn7Nx99JEIjFMm2Va/5AZK6j0xnw:fWawWvjIy5YPvwzn7N/rTAYAZK6jyw
Malware Config
Signatures
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Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
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Loads dropped DLL 35 IoCs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Modifies system certificate store 2 TTPs 6 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\temp\07E76AA96489FE112A67E71647634143\2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe"C:\Windows\temp\07E76AA96489FE112A67E71647634143\2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe" -initialNonSecureSetupPath="C:\Users\Admin\AppData\Local\Temp\2024-11-01_3896fa2ab4539a91fad7d1a46c308bc0_avoslocker.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Checks for VirtualBox DLLs, possible anti-VM trick
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\02462FA96489FE112A67E71647634143\setup_ui.exe"C:\Users\Admin\AppData\Local\Temp\02462FA96489FE112A67E71647634143\setup_ui.exe" -cp=objref:TUVPVwEAAAAAAAAAAAAAAMAAAAAAAABGgQIAAAAAAAAaRfq63GtU6c7+udSS4desAigAAMwE///+2+QN7SFV+S8AGQAHAEIAYwB4AHIAagBmAGsAZQAAAAcAMQAwAC4AMQAyADcALgAwAC4AMQAzADAAAAAAAAkA//8AAB4A//8AABAA//8AAAoA//8AAA4A//8AABYA//8AAB8A//8AAAAA:3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.6MB
MD5caecd14a29831ad861a7ad5f27aef854
SHA147b0b6ea8fee875352298a67629b8174d13ae50a
SHA2566d0a88c3245659c01d24ce359c84a25d07ac1683f4aa20f0b98519ccd2b87112
SHA512505d1d92a29d0c2f371f8408077ed778d01f90d5b402cc25b226eb3a5012937a870e15ef2759247dcf2ef4b79f893ae4520a12e9ce23b383c5ffb2870afbfccf
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Filesize
342B
MD515759b909fb1dc1e4c10954f4ea04477
SHA103647e207c2597cb9736fd9c20d2a77a14fc72c8
SHA256422121dd141478f8ee0c91e9853872cfe7b301144d884b128a24e310dcc52c6c
SHA512f8624d2cad2c37229d6f16676bfeafb450090dbe53fd478ba47f0221637be7ec1b0d03664c538c70e40f127c8dc8d1abfa363bcb5d4c5fdfb02e66850c90286a
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Filesize
73KB
MD53d791db3fb8df9cfb95cdc1c89f576cf
SHA1977725bdd90b7e20d86285c9d91c294a98f76ece
SHA2566ff013a27dab58effd6b1fcc885e49302ac99a371c640f01001e036c4f06c6e0
SHA51264cb627d2fefb9245462b5410cc7bbc111d84838f3be2fb8091cb5847faf115fe00397159db01ef6079cf6bbee0062ba71bf8a253b103f271562c61a79eb4a6e
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Filesize
279KB
MD53c7d941e01763db131f05cd5e17909d0
SHA1a7f8afec2bae02d5e71de09691ed23a59afbb36b
SHA256a985540c3dedab11d80faa0537ffc3e91f3f778da28f7d60dff3ccbbec97de74
SHA51278ce5069df9da39b01ebea7ef7c6b582a2b266e51359d1d2561413df290f3eb2039341fc474317c116232542899d7cdd0d84e92837677770988d164f53e2b65f
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Filesize
55KB
MD5b7e44cf662827b55d7f1aff8ad75bd01
SHA126447133da5fa2b79abb4004062d088501492a1f
SHA256a82b14a1f48329b1288e92cbe72c033c1446fb813f6a8551a86c5dc1ade7aa16
SHA512c46e8141a42dc5e0e491f1da09b5e2133fcc92f47e224309fdee1010229b262e94460ccfb63ebfe1ee7edadf10c3d1da3439e5d7e8a885f5f04f729657ba377d
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Filesize
406KB
MD570f74920e8265226ea92aae61e555df1
SHA11ba3bec7011418d63d181c1ac452cec1f7beb3a3
SHA2566ac4ff8fd298f8f78c825eb714c801f026db14a1862eec9562952b59a2f862f8
SHA5124ca6d4f881a2dbc1f6c0194451429c389fa0b6a9bd18f5477227895fbb5a5d513c212c4adb48d956603a95216f70c52f07016be2ad92a5c5ccf4f5c44d592673
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Filesize
213KB
MD5676bdc05672d36e2ef7de38aa83a2803
SHA11a87a7c0b8571631800c517fac92a06bd88657b9
SHA25679c7455735eb0b7e8b3cf46da78b06fb81229169d85039afab44ca74fe3f9a43
SHA512c136de38e9bf50b901ab79d51169356f6f8077c18d440ea39d6920f2335f7cd67537697b90479be4a6dc59529842121b84f2e7b9223c740e6453ae47ac3de78d
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Filesize
659KB
MD58acd5d780ddd04ce22f90db393027cc6
SHA12466b7e57fb2997e50cfac797065cbe7c565e671
SHA256029317b7e585abd3561020ae0d9a941f64abf01302024270c7fa55648d0c5360
SHA512a57c323a7267a21d2f262d99edd4edc7ba8254e301c3f9c0f8b9d9fbf21914896c0e4517a3a1985976cc80dc2afca595c7369537fa11d10185be26b734179946
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Filesize
2.9MB
MD505b722edf678407e6da411924d11bf74
SHA12df3ba610c858ea6156867f1ade8aebe3f278d28
SHA25641eb3558586ee2eacc0822b725fba7f755f54c7b0ac450dfeba5a59057192b44
SHA51216a16d35cbb0a71298ce3413d44fd790ee49d8649e0eb9587cd6f20621a3ede6987de6bdb2377180d4616c4fc2b677cff378e89aa9e8e37da3b5a7e6e5ab7484
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Filesize
108KB
MD53249c9313d6902a72ef8f971c26f5082
SHA1726f2eb6b2a82e21eee0e5e497a028f461fc9f95
SHA256393d5ac9b4f30928496f39120ad300b7a81cd7533133adc8c935ce3d1ccacf60
SHA51222ab9eadfcfc24680f5c568024e062141d00a9f4d929ee452cafae3c5ea0d039513b8c17ea85ca2d104f1d4e60ab8b9e44a5ecb6818617d008549ae08215214a
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Filesize
55KB
MD546f91941e61609973979d8e5bf321a31
SHA11b86653c3fdee62d587d3afdad0ffa5aad01235e
SHA25621675b87be651e4a2e7ce2af5a62d9e10a1a04dc2c58e1751b304089a7d5a070
SHA5121a251c8491061a9b01406ba4f89d356edf8417cd89e29a961007964b501ed5ce10baeeb7a388cfb661b21b4cdb09d2a8b2c1c207a85cc285a76614775e71c923
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Filesize
996KB
MD5768fd4b2b69b57e5a3370dd19db5bd9f
SHA16fe8859921169d25cf67af7567f2a97df7da7941
SHA2564eb40c9c1019c0804c813cd0eff2c0da709724b022a4e510be5d6a89cc05bab4
SHA512e08ce0545235b1acc43798eff56570752ae2bf77adb38cb3fae8e2781f8c9cc1709d251709e2491fd8ef203676c9ab7fe91590792ae37226c6e605eb36c4a61c
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
285KB
MD52985b28c3485039cbee81b840b5437b4
SHA1c7020d197d094196137655da3b0196720d99d2de
SHA256586c371ecc1b17c7cac9f8d72961d9d6504b0bf855ca3501262bb0338c6654a4
SHA5129c2c82c1c1bee1a9e76868a7598998c0b927505395e700d6aac05e7c2a4f522f715534bcd8a512152b7879fc87ee11ceb07c4ef440de5519295d8ababdac6022
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Filesize
5.6MB
MD59b40fceed13f97500fee8ae3db63aea7
SHA16c7fd26bd6c630fffe88021d84d8b1f5a2497eab
SHA256b46ee0e76dc8377614e2bd59cb8cc77681611183a0483a1492dd9ed247082c5d
SHA512e208fd45a83576509854f7e91a7ab39d6a4a42f06fc39c6aa4f108451e3cfa3b0d62cdbcdc5ecfc81bc264f3f5f39266c81837392ae1c96b01876200a3e9ab25
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Filesize
655KB
MD5a561816d0eb44f9b8d780398c5dc02e1
SHA120dcff0d9f91c214791a7041054b74ac22605db7
SHA256acdd31e3f937c1df4eb348742db6f54a98985c5642f6413fbbe3e74957d6cbb8
SHA512a9099d9e6f2177a2f3e23ef1cf7f326b2546c820de2b3abba36c05abb00fa489f9b517ee4ad6da79ac00cc6dab871e4d682c451de58c3234092c7d44ca846b78
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Filesize
136KB
MD59ed0b05697672396a56f9d5c249b7c53
SHA1928e251256859ed146c8b566287ccbcece647878
SHA25693a87c48b86a10f6c0e59827ae90e7af45a0fc61f92df2a64ee47e4219b3873f
SHA512e0ab1c3a50d09ee5174cd1a3ff27566a0e23e5a75c7d16da6635df227e57d68e9cc3cb0f89a14148fe5a9d506e0431f2654bc678a26c928fdd093140051b974f
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Filesize
201KB
MD59620b9b61a710c8a2178747a74d066ac
SHA11d48e8583dcff441d880b2e2d00fa2c9b6ac905f
SHA2563929ef5d1c09611bde783054cdaa6f19e07a9f22c7e9c85edf9510d13c7c423e
SHA512c88b2dccc17e04ecb9afe3133069778a88873a98133cc2989fde6ced1cbe00c434c9bc6019fdab02b0b65db65f81efc18e235dc2dc827a28cbd0f6397f3b7f68
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Filesize
202KB
MD5e53fe31b6e8e76e82321b1a7333cece0
SHA1d70a43434b8c3022fe9c9b7f2f3be15c49bd8b72
SHA25697ec1da3c2bfa0d12f3f6d03ceb7316214a07e55f183c324746b1ce8f050503d
SHA512e1679116976918d520f01885498d46e0233a1750a47979cbd675ddc4b8f3047a616cfd94bb60ad15c5dd1a9f49357eefced5b012f7e2e90a5ae21515fa51e3fa
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Filesize
69KB
MD5551b9e8050754178469ec56cd0a61c3a
SHA1e8d0ab21a7dad026f50a64d14d5226a7cc1c8574
SHA256560366743fb87ac7f1c3236f3b21856b8585b580d785b3e79349e603fd80fb14
SHA512c545860998595ff730271f94588841e99383138fd6b6ab5064708cf99ad4e88ba22e7573ed49f5533be1d588dff0cb4976de35d32237b99015019aebd4d3112c
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Filesize
4.5MB
MD53896fa2ab4539a91fad7d1a46c308bc0
SHA1a244b793529a53b0128df75440442aeec0373359
SHA256a57d751a69a9e69f71c50a14136336370ed172106f4c11ea790d1a8136c7ed64
SHA512765b0a7ebdbfa13df3023a851db3dd68395bb2ff9a64f06933c91499a2e661b2d98f7e6e290afb299464f86683e5a7fc123f4d48030acf6c7e67d0fc9389da6b
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Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
2.9MB
-
Filesize
664KB
-
Filesize
408KB
-
Filesize
208KB
-
Filesize
288KB
-
Filesize
4KB
-
Filesize
40KB
-
Filesize
136KB
-
Filesize
200KB
-
Filesize
72KB
-
Filesize
6.9MB
-
Filesize
6.9MB
-
Filesize
1000KB
-
Filesize
216KB
-
Filesize
112KB
-
Filesize
280KB
-
Filesize
56KB
-
Filesize
72KB
-
Filesize
6.9MB
-
Filesize
6.9MB
-
Filesize
56KB
-
Filesize
6.9MB
-
Filesize
660KB
-
Filesize
6.9MB
-
Filesize
56KB
-
Filesize
40KB
-
Filesize
4KB