Analysis
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max time kernel
119s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
25-08-2023 22:25
Behavioral task
behavioral1
Sample
d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe
Resource
win10v2004-20230703-en
General
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Target
d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe
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Size
15.3MB
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MD5
990fd3beb548bef684f43fe83327f8b6
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SHA1
949a91ae5fde249d75d552c280f7757ffae351dc
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SHA256
d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790
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SHA512
e6a44a67950b2e8385eea9819d51b88c0a96739acc3031f94488a110dd06d395aba376582ed6833dbe32fe8bad7c26534a5cffcf13fdf2588c891243ef3095e9
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SSDEEP
393216:1eyc6kmBPLzjRtO8qsWYIUnbiexzcHtuwj6VR0:Y1VqPLDbxfIWbiexzcHtx
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1856-40-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-43-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-44-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-45-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-46-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-48-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-51-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-53-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-55-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-59-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-61-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-63-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-65-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-69-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-67-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-73-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-75-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-79-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-82-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-85-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-88-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-91-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-94-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-97-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-99-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-100-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral1/memory/1856-103-0x0000000074BE0000-0x0000000074CE0000-memory.dmp upx behavioral1/memory/1856-104-0x0000000074BE0000-0x0000000074CE0000-memory.dmp upx -
resource yara_rule behavioral1/memory/1856-4-0x0000000000400000-0x00000000019AD000-memory.dmp vmprotect behavioral1/memory/1856-57-0x0000000000400000-0x00000000019AD000-memory.dmp vmprotect -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe 1856 d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe"C:\Users\Admin\AppData\Local\Temp\d42c0b92d4f439187093694015aa825b886d571aaf2093a6cd0700b5fa9ce790.exe"1⤵
- Writes to the Master Boot Record (MBR)
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1856
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD5f3441b8572aae8801c04f3060b550443
SHA14ef0a35436125d6821831ef36c28ffaf196cda15
SHA2566720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA5125ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9
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Filesize
62KB
MD53ac860860707baaf32469fa7cc7c0192
SHA1c33c2acdaba0e6fa41fd2f00f186804722477639
SHA256d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904
SHA512d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c
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Filesize
163KB
MD59441737383d21192400eca82fda910ec
SHA1725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA5127608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf