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Analysis
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max time kernel
141s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
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submitted
25/08/2024, 09:27
General
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Target
2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_avoslocker.exe
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Size
4.6MB
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MD5
085e876fb5cc1a40ea768a14b1bb69e6
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SHA1
9003c5b5a84b54ca2fcdac026fe90f09bdd2e088
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SHA256
66e990346e9a4f94c83d9397eb6e1df1cacc6b1d56f313da1d7abc4749b12cc3
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SHA512
b3330aacffeb5f7698b58a563bfd5408b81619dd065d0e648e600b0aaa59c8f61ba90247f1be6b057db824a0990dc727f71ae7b79a2bdc9c5724b6a205ecf8b3
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SSDEEP
98304:QWqq+Mb+6yWv5rIy5YFWAvwzn6IhTE3mFFkKmIcoRbO462gnw/:QWabWvpIy5YPvwzn6Ii3skKm9WOdBw/
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\2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_avoslocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_avoslocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\temp\06EDAC334C26FE11881C2CA639EC4FF3\2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_avoslocker.exe"C:\Windows\temp\06EDAC334C26FE11881C2CA639EC4FF3\2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_avoslocker.exe" -initialNonSecureSetupPath="C:\Users\Admin\AppData\Local\Temp\2024-08-25_085e876fb5cc1a40ea768a14b1bb69e6_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\0BC16F334C26FE11881C2CA639EC4FF3\setup_ui.exe"C:\Users\Admin\AppData\Local\Temp\0BC16F334C26FE11881C2CA639EC4FF3\setup_ui.exe" -cp=objref:TUVPVwEAAAAAAAAAAAAAAMAAAAAAAABGgQIAAAAAAAC9IEl5cVEjX3+sSDeq5BSgAswAADAJ//9/j8bgZSe0uC4AGAAHAFgAZQBjAHUAZABuAGMAZAAAAAcAMQAwAC4AMQAyADcALgAxAC4ANAA4AAAAAAAJAP//AAAeAP//AAAQAP//AAAKAP//AAAOAP//AAAWAP//AAAfAP//AAAAAA==:3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4.6MB
MD53a153807503eeaed8f58c2ea14beafb6
SHA1391168e3edd238fa06ab8d28ddbf2352365d4ede
SHA2561e73fdb4ddfe7d58dcbaad2ff21ed70965a2d015b14698be0b737d6aa7235935
SHA5129d4e503f6d411e1d1f49fc76a50338402f990571b6c14241d84b98fd5303df81ee415c390a2319d72ee30c45daac34520e0f342d76e7f81835a7c081903c4a46
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Filesize
342B
MD5badbcda2e339176ac4dec947588bb022
SHA12bf60b9fc91435617472befdbc363c6955a2fa3e
SHA25639889fd2ac92109fb0231c64611631981f0279d11e9ea62ff6144a33d545567c
SHA51214f9aef292c39ad91d21b50cf0ea0dadd64537dcda5be02cedf7942651128bb4c15ac8aa8e51fa812b1133e2efcc1b9d42ec69b8be264564234d457e7e2d0ed0
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Filesize
73KB
MD53d791db3fb8df9cfb95cdc1c89f576cf
SHA1977725bdd90b7e20d86285c9d91c294a98f76ece
SHA2566ff013a27dab58effd6b1fcc885e49302ac99a371c640f01001e036c4f06c6e0
SHA51264cb627d2fefb9245462b5410cc7bbc111d84838f3be2fb8091cb5847faf115fe00397159db01ef6079cf6bbee0062ba71bf8a253b103f271562c61a79eb4a6e
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Filesize
55KB
MD5ecc8a400ad9e21c8482a879eb161b820
SHA1c880c3ca976b3c9ace7c5690b05c9b7323012530
SHA25691c2c0e8e42ce3fbfdb9654d5e5c7b8b6ae192d64e5b2c67781669e1d6ad7046
SHA51271afc54089027d9de144945d40278658780babcf09aad6e0f4a1805428f8a68903b5749c21758c37ff6e1691b7973f8c66f5e23b23002e124ed9f1d892ce6a74
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Filesize
213KB
MD5676bdc05672d36e2ef7de38aa83a2803
SHA11a87a7c0b8571631800c517fac92a06bd88657b9
SHA25679c7455735eb0b7e8b3cf46da78b06fb81229169d85039afab44ca74fe3f9a43
SHA512c136de38e9bf50b901ab79d51169356f6f8077c18d440ea39d6920f2335f7cd67537697b90479be4a6dc59529842121b84f2e7b9223c740e6453ae47ac3de78d
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Filesize
201KB
MD59620b9b61a710c8a2178747a74d066ac
SHA11d48e8583dcff441d880b2e2d00fa2c9b6ac905f
SHA2563929ef5d1c09611bde783054cdaa6f19e07a9f22c7e9c85edf9510d13c7c423e
SHA512c88b2dccc17e04ecb9afe3133069778a88873a98133cc2989fde6ced1cbe00c434c9bc6019fdab02b0b65db65f81efc18e235dc2dc827a28cbd0f6397f3b7f68
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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
279KB
MD53c7d941e01763db131f05cd5e17909d0
SHA1a7f8afec2bae02d5e71de09691ed23a59afbb36b
SHA256a985540c3dedab11d80faa0537ffc3e91f3f778da28f7d60dff3ccbbec97de74
SHA51278ce5069df9da39b01ebea7ef7c6b582a2b266e51359d1d2561413df290f3eb2039341fc474317c116232542899d7cdd0d84e92837677770988d164f53e2b65f
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Filesize
406KB
MD570f74920e8265226ea92aae61e555df1
SHA11ba3bec7011418d63d181c1ac452cec1f7beb3a3
SHA2566ac4ff8fd298f8f78c825eb714c801f026db14a1862eec9562952b59a2f862f8
SHA5124ca6d4f881a2dbc1f6c0194451429c389fa0b6a9bd18f5477227895fbb5a5d513c212c4adb48d956603a95216f70c52f07016be2ad92a5c5ccf4f5c44d592673
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Filesize
285KB
MD52985b28c3485039cbee81b840b5437b4
SHA1c7020d197d094196137655da3b0196720d99d2de
SHA256586c371ecc1b17c7cac9f8d72961d9d6504b0bf855ca3501262bb0338c6654a4
SHA5129c2c82c1c1bee1a9e76868a7598998c0b927505395e700d6aac05e7c2a4f522f715534bcd8a512152b7879fc87ee11ceb07c4ef440de5519295d8ababdac6022
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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
5.7MB
MD59c766093f7d40e8762d72aeda819e8ae
SHA18ee3ad0b31d5e330ee90e67956ee527f99375fd4
SHA256abf726a8acc5988d90f271f1b754da96176797f7e7918797d5b76762f3b88903
SHA512c3d52d511a50efd6e8d38008d3c08147a3cf165cea7ecc8c016915c31d00081c6ecad5f87dd58f1c81d4d52854a2b43a6283006540eaa893aa6b94d826238e6a
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Filesize
655KB
MD579d2f02c6cca6df2bed9e977ca773e0a
SHA12722d74170d2408ae04d2afa98b7278713d83b1b
SHA256a706cbd6848adc4424108e362412bec9c2e549d8796406a31624301a47e7076c
SHA512c2e09e2b3babcd65bf24c6410bcd4b3f694a44980907a0c3bc6c9d3362806b434c23fb48c669a8a5465446e7283df85fd622ae86f5f70a65d5d625195faf92e8
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Filesize
136KB
MD59ed0b05697672396a56f9d5c249b7c53
SHA1928e251256859ed146c8b566287ccbcece647878
SHA25693a87c48b86a10f6c0e59827ae90e7af45a0fc61f92df2a64ee47e4219b3873f
SHA512e0ab1c3a50d09ee5174cd1a3ff27566a0e23e5a75c7d16da6635df227e57d68e9cc3cb0f89a14148fe5a9d506e0431f2654bc678a26c928fdd093140051b974f
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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
202KB
MD5e53fe31b6e8e76e82321b1a7333cece0
SHA1d70a43434b8c3022fe9c9b7f2f3be15c49bd8b72
SHA25697ec1da3c2bfa0d12f3f6d03ceb7316214a07e55f183c324746b1ce8f050503d
SHA512e1679116976918d520f01885498d46e0233a1750a47979cbd675ddc4b8f3047a616cfd94bb60ad15c5dd1a9f49357eefced5b012f7e2e90a5ae21515fa51e3fa
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Filesize
69KB
MD5551b9e8050754178469ec56cd0a61c3a
SHA1e8d0ab21a7dad026f50a64d14d5226a7cc1c8574
SHA256560366743fb87ac7f1c3236f3b21856b8585b580d785b3e79349e603fd80fb14
SHA512c545860998595ff730271f94588841e99383138fd6b6ab5064708cf99ad4e88ba22e7573ed49f5533be1d588dff0cb4976de35d32237b99015019aebd4d3112c
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Filesize
4.6MB
MD5085e876fb5cc1a40ea768a14b1bb69e6
SHA19003c5b5a84b54ca2fcdac026fe90f09bdd2e088
SHA25666e990346e9a4f94c83d9397eb6e1df1cacc6b1d56f313da1d7abc4749b12cc3
SHA512b3330aacffeb5f7698b58a563bfd5408b81619dd065d0e648e600b0aaa59c8f61ba90247f1be6b057db824a0990dc727f71ae7b79a2bdc9c5724b6a205ecf8b3
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Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
200KB
-
Filesize
2.9MB
-
Filesize
40KB
-
Filesize
208KB
-
Filesize
136KB
-
Filesize
56KB
-
Filesize
408KB
-
Filesize
40KB
-
Filesize
4KB
-
Filesize
6.9MB
-
Filesize
56KB
-
Filesize
6.9MB
-
Filesize
112KB
-
Filesize
664KB
-
Filesize
1000KB
-
Filesize
56KB
-
Filesize
280KB
-
Filesize
72KB
-
Filesize
6.9MB
-
Filesize
288KB
-
Filesize
216KB
-
Filesize
6.9MB
-
Filesize
4KB
-
Filesize
6.9MB
-
Filesize
6.9MB
-
Filesize
660KB
-
Filesize
40KB
-
Filesize
6.9MB
-
Filesize
72KB
-
Filesize
6.9MB