Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2022 19:06
Static task
static1
Behavioral task
behavioral1
Sample
d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe
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Size
228KB
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MD5
f63843c83905455cdcc73951287857d9
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SHA1
c115fd9fd1acb588474964118a97af2f241faddf
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SHA256
d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9
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SHA512
b38cd34e13b9df77fbe751c64c80b976e20d2e7277fc97ec56d524aad902fbe41b93e20aa4fe75e1f4579b9261421367aa4b54f914582b1f4a6bff65e8226ec0
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SSDEEP
6144:TzH7PvUvbTLzVBEGLUsDFlWU+Xo9clqiqTGbPQglaqM:TzH7Pv0WBo9UnbPQgnM
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" daiyum.exe -
Executes dropped EXE 1 IoCs
pid Process 2264 daiyum.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe -
Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /h" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /v" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /D" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /e" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /q" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /k" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /Z" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /F" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /T" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /E" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /N" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /i" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /y" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /L" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /G" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /d" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /m" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /a" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /P" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /A" daiyum.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /I" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /w" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /t" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /u" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /C" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /S" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /r" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /b" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /K" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /s" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /R" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /V" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /f" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /M" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /z" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /c" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /W" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /Q" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /o" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /l" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /p" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /Y" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /O" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /g" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /B" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /X" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /H" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /n" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /U" daiyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\daiyum = "C:\\Users\\Admin\\daiyum.exe /j" daiyum.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe 2264 daiyum.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3564 d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe 2264 daiyum.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3564 wrote to memory of 2264 3564 d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe 80 PID 3564 wrote to memory of 2264 3564 d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe 80 PID 3564 wrote to memory of 2264 3564 d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe"C:\Users\Admin\AppData\Local\Temp\d7b4cc7f5c1d6159af3cf041bb89dafbc36e711edb9fb8bd47399212e94972a9.exe"1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3564 -
C:\Users\Admin\daiyum.exe"C:\Users\Admin\daiyum.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2264
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5042bc392c1689e2b8bbac8a713c8d7b2
SHA1f869290e814bbbc61e9058a8c00e12bc208a418f
SHA256dcb1b80c4eba9a3344787902327f9a69cf7576a9b5564898b0b6882525fa7ba0
SHA5123ff26607775d06d998c91d2d79f3cbb0581efd243c09e6e7fa9abbf3ddfe6811d70d597aa0dd9ae192fb330f0c447fe1287ac257a591e6e956117d4719340e16
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Filesize
228KB
MD5042bc392c1689e2b8bbac8a713c8d7b2
SHA1f869290e814bbbc61e9058a8c00e12bc208a418f
SHA256dcb1b80c4eba9a3344787902327f9a69cf7576a9b5564898b0b6882525fa7ba0
SHA5123ff26607775d06d998c91d2d79f3cbb0581efd243c09e6e7fa9abbf3ddfe6811d70d597aa0dd9ae192fb330f0c447fe1287ac257a591e6e956117d4719340e16