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Analysis
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max time kernel
151s -
max time network
179s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
28/11/2022, 05:40
Static task
static1
Behavioral task
behavioral1
Sample
ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe
Resource
win10v2004-20221111-en
General
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Target
ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe
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Size
1.4MB
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MD5
6aa8ddaec3cd4e60a68565c6726a82a5
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SHA1
f1cd1d51e093f3a3331821e793b3639c56eb49ae
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SHA256
ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4
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SHA512
f22ad3e9a4ffecb59eadcf10e5b88314c3e0dfcd187bd0f695120853fec0655d0f635585b09d5c1af6f11fc5b11edd729f651c86e24fc8d03ee7ee8c39cabd46
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SSDEEP
24576:nD8UIjWviElDsDAxCrygijIciB5hPIyGAs42Pu:ngUICKWDsDAl38ciB5NIyGM22
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4380-132-0x0000000000400000-0x000000000063E000-memory.dmp upx behavioral2/memory/4380-133-0x0000000000400000-0x000000000063E000-memory.dmp upx -
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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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NetworkChecker = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe" ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe -
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 NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4380 ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DefaultCompressedRecord = c880f97f738dc673c68c6d8881b95824773a922c5ddc777ccbc7880b7bc4ec17bbff3bbad6c22d13ba7754447eb85a2d473b6ae8c2498fd6197a871a7ff36f75dfbe9a667739740da80add3ef8917f5ac2aec428be677f498840c6d31d3891ad41b778c2fcba66 ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\RecordModifiedMax = "DMNPf9upvS7Cf71I9V2fJ73SShAvCFex3LvW14L4Xjf/+KgE3fwxbvjrr4cxNBsAeQ==" ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FlagsModifiedValid = 0000000000000000 ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe"C:\Users\Admin\AppData\Local\Temp\ef52243546e684a7d8e628fa282f137350bfa2e21ad3b72cc8faea2e57e286b4.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Internet Explorer settings
PID:4380