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Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
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submitted
22/05/2024, 10:00
General
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Target
efa9c92c5e7d0608cee15af285a48d5a6a8b7bff95c26287f611f3a5bba9e0c1.exe
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Size
2.0MB
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MD5
19744978fe9f7728f71e0fc7b445a0f6
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SHA1
53eb2f859a57a4d82c26a1572c78088428fd60ba
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SHA256
efa9c92c5e7d0608cee15af285a48d5a6a8b7bff95c26287f611f3a5bba9e0c1
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SHA512
315f983d4529a5e8e042a5f9ea62be6605e411a0e1e006c639c11998a9aea74df8523a9ad4754ba67628b6e8c5c03f9ccc97730c8cfa5613961e702cbe8c2153
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SSDEEP
49152:IFno/jfsJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jEtIuoITsdZT
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 10 IoCs
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Stealc
Stealc is an infostealer written in C++.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
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Detects Windows executables referencing non-Windows User-Agents 9 IoCs
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 9 IoCs
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Detects executables containing potential Windows Defender anti-emulation checks 9 IoCs
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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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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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 SetThreadContext 1 IoCs
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies system certificate store 2 TTPs 3 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\efa9c92c5e7d0608cee15af285a48d5a6a8b7bff95c26287f611f3a5bba9e0c1.exe"C:\Users\Admin\AppData\Local\Temp\efa9c92c5e7d0608cee15af285a48d5a6a8b7bff95c26287f611f3a5bba9e0c1.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\katE34.tmpC:\Users\Admin\AppData\Local\Temp\katE34.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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Filesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
2.4MB
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Filesize
2.3MB
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Filesize
2.3MB
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Filesize
1.3MB
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Filesize
4KB
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Filesize
2.0MB