Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27/03/2025, 16:39
Behavioral task
behavioral1
Sample
KEYSERC14CK1.2.1byvujr.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
KEYSERC14CK1.2.1byvujr.exe
Resource
win10v2004-20250314-en
General
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Target
KEYSERC14CK1.2.1byvujr.exe
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Size
28.9MB
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MD5
c9ca42eddbb644e6bb0f0ae75644550f
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SHA1
9d1e6197e0803c5e7ae5943635b8bcb3d0bf1e0e
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SHA256
95976390f84c36983964665b810433b3016e421d221a4c83cb49dc98b5ca8a99
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SHA512
a4e1d993d7fcfc31086dc12dc2f69ad2401eed669a0a638d3ef9c5aae13b719569afbdf9763dd75d53a818288d3161b4d80dac9ec3784dbdd847980fc8f87de4
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SSDEEP
786432:muqJow/lOW8ZwfX8O8l8dPXAbjlsoxCXF1R7Zn:muelOWQwP83lmPwjlsOC7RR
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 2940 KEYSERC14CK1.2.1byvujr.exe -
resource yara_rule behavioral1/files/0x00030000000209da-1114.dat upx behavioral1/memory/2940-1116-0x000007FEF5EF0000-0x000007FEF6554000-memory.dmp upx -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1868 wrote to memory of 2940 1868 KEYSERC14CK1.2.1byvujr.exe 31 PID 1868 wrote to memory of 2940 1868 KEYSERC14CK1.2.1byvujr.exe 31 PID 1868 wrote to memory of 2940 1868 KEYSERC14CK1.2.1byvujr.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\KEYSERC14CK1.2.1byvujr.exe"C:\Users\Admin\AppData\Local\Temp\KEYSERC14CK1.2.1byvujr.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Users\Admin\AppData\Local\Temp\KEYSERC14CK1.2.1byvujr.exe"C:\Users\Admin\AppData\Local\Temp\KEYSERC14CK1.2.1byvujr.exe"2⤵
- Loads dropped DLL
PID:2940
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1.8MB
MD56b3a16dc31065257b7845d9ff611e3c6
SHA18cf971ee772193a93e49f4701f817bc6245cf81c
SHA2563cdc6a436aa16671deb975af8290654a134bb916299677a08438fc7e91e6f7e6
SHA5121d219471032c882b2e624ec1df951f6a59ee8ba39459d8eb917aaeec6899d0af6782580a5dc43ed1bbe852587c52bea32ba93ea195940335e2a19cc120c53aec