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Analysis
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max time kernel
141s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
24/12/2023, 16:41
Behavioral task
behavioral1
Sample
064cbd89d5bd9d2e43e32f0bbb92a418.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
064cbd89d5bd9d2e43e32f0bbb92a418.exe
Resource
win10v2004-20231222-en
General
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Target
064cbd89d5bd9d2e43e32f0bbb92a418.exe
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Size
29KB
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MD5
064cbd89d5bd9d2e43e32f0bbb92a418
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SHA1
9b3b49cb1d8c6bfdced9c2b814cb4de0b9ebe30b
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SHA256
964be34b5f48f7542b4dca090fb43dad6e4cecaec169924368ded2a0cf48b5a2
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SHA512
1b870b67287e5188485acda180d8dd96c107190cc5e5210407b6afc3697d1d8d97022f7583089773a8fd5ed27dd7d963f589a3429c0f78b2afbbe7bc2acc8ab6
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SSDEEP
768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFk:SKcR4mjD9r823Fk
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1352 CTS.exe -
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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resource yara_rule behavioral2/memory/4540-0-0x0000000000CA0000-0x0000000000CB7000-memory.dmp upx behavioral2/files/0x0008000000023204-8.dat upx behavioral2/files/0x0003000000022778-12.dat upx behavioral2/memory/1352-9-0x0000000000950000-0x0000000000967000-memory.dmp upx behavioral2/memory/4540-7-0x0000000000CA0000-0x0000000000CB7000-memory.dmp upx behavioral2/files/0x000600000001e5df-30.dat upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 064cbd89d5bd9d2e43e32f0bbb92a418.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 064cbd89d5bd9d2e43e32f0bbb92a418.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4540 064cbd89d5bd9d2e43e32f0bbb92a418.exe Token: SeDebugPrivilege 1352 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4540 wrote to memory of 1352 4540 064cbd89d5bd9d2e43e32f0bbb92a418.exe 17 PID 4540 wrote to memory of 1352 4540 064cbd89d5bd9d2e43e32f0bbb92a418.exe 17 PID 4540 wrote to memory of 1352 4540 064cbd89d5bd9d2e43e32f0bbb92a418.exe 17
Processes
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C:\Users\Admin\AppData\Local\Temp\064cbd89d5bd9d2e43e32f0bbb92a418.exe"C:\Users\Admin\AppData\Local\Temp\064cbd89d5bd9d2e43e32f0bbb92a418.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1352
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
290KB
MD5ba68ef2caba5b67befbdd34b98541018
SHA11746a8f1c39096a776bf124ad4151897c37ec4d5
SHA2566371c46e427506664b01f7e32b085cfc343edd26964c3721f89f425f2188212c
SHA512daa761af16cace4b24325d6c56101b0751e3c21e4442c13bdad84fcd1b13475f532de27ce506f20526601837275f603f81b7503fdc8b40f5d600d3a934b307ac
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Filesize
29KB
MD565d5d837a8cafdd712e487ea8c47141b
SHA1f144582e330f22f05f6bffb20271be94d329942e
SHA2562c804a5f48c2638b1725e84eb252537c480e8f1166366a08b753d3893c7183d8
SHA51265623b019b09586a03eab7a7f54525e1e13dabbe13b28a6f25e179beda5bb0e8ff35e9201f44996f599701fe8ddb4640721f9f5db24154007709575417d4b6b2
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Filesize
29KB
MD570aa23c9229741a9b52e5ce388a883ac
SHA1b42683e21e13de3f71db26635954d992ebe7119e
SHA2569d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5