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Analysis
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max time kernel
134s -
max time network
103s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
12/05/2024, 00:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe
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Size
7.3MB
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MD5
42b9bc8b84f58b56b568ef88f4c7fd1e
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SHA1
9d1480ac33f095e009129b65449266bfc31aab4b
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SHA256
85684b26f8e95225fcfc811b02dd8782ff9bb56732ac2a5ad098451d319e91fc
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SHA512
8697b089b8aa606aa7a7dc828cc4abec6c94f8a7131c370b9cdc1cdba25c1a19d7a5761457ae7acebd9ec44426efb624a7788829de90e9f1eea9e551206df1aa
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SSDEEP
98304:s+BPc9rUoflanoCoN2ck3q2TfUvuQsRwAx8nfJVAsI+bQYL:QUoflrCOP2Tf4XgSf5IzS
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2412 2724 WerFault.exe 82 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Set value (int) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe = "11001" 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe 2724 2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-12_42b9bc8b84f58b56b568ef88f4c7fd1e_avoslocker.exe"1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2724 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 16282⤵
- Program crash
PID:2412
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2724 -ip 27241⤵PID:4836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5a8cca5b969784f356bcf8bbd0895b8cb
SHA1bcedc0d7ed2e6ac55709f0b837a354c6ad7f9c97
SHA256a641388d7b4c162c026606d4b099afc45db810edb39c8c5bddd087a1df840aa0
SHA5127c9e9fc110ea0a5c51a15b5253c0dc2d47a490581dd4005925c3045d6f4e2ed0ff9cd427a9cc42db090153706283b1a6270c225bd3a161198c805db435375670
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Filesize
426B
MD5a28ab17b18ff254173dfeef03245efd0
SHA1c6ce20924565644601d4e0dd0fba9dde8dea5c77
SHA256886c0ab69e6e9d9d5b5909451640ea587accfcdf11b8369cad8542d1626ac375
SHA5129371a699921b028bd93c35f9f2896d9997b906c8aba90dd4279abba0ae1909a8808a43bf829584e552ccfe534b2c991a5a7e3e3de7618343f50b1c47cff269d6