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Analysis
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max time kernel
67s -
max time network
50s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
29/04/2024, 00:40
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe
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Size
7.3MB
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MD5
68ddd0c59e394f2d366a048c08d7f6be
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SHA1
99a345bf566e0b5653c4bc053238f712b6cc3415
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SHA256
e865fb36a9861562cb83fddebd5dab191cd43f429e0e9cdb8a0fd3307072430b
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SHA512
1c972b60f0d61241e32203173d244da19a3ad1e9dc13f1724d2a16447e4705a4aef42c22d3bce125d672199b11b363a2064d68cb9647b709710a96b282e5ac6d
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SSDEEP
98304:g+BPc9rUoflanoCoN2ck3q2TfUvuQsRwAx8nfJVAsh+bQYL:sUoflrCOP2Tf4XgSf5hzG
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 4276 2060 WerFault.exe 82 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe Set value (int) \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe = "11001" 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe Token: SeIncreaseQuotaPrivilege 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe 2060 2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-29_68ddd0c59e394f2d366a048c08d7f6be_avoslocker.exe"1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2060 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 22442⤵
- Program crash
PID:4276
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2060 -ip 20601⤵PID:5060
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