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Analysis
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max time kernel
160s -
max time network
186s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 22:05
Static task
static1
Behavioral task
behavioral1
Sample
d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe
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Size
180KB
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MD5
c91bc5c6fc0858edaee653ecabc608ed
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SHA1
56bc9cf74143be1527085e4a84ab9f4647bf3ccd
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SHA256
d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8
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SHA512
52ca6f827630940d1476160929e7b3a57f6ca91c1fe66b638d57b1f4e339f3af55df49d305955251af59dd15cec6055e502428a728453c65c08410c3ae953e9b
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SSDEEP
3072:xHWqSC+y50cm1tnRd5GK/fObT/bGinhssp9nPVmvEfL2co3ZwURmkPiR/+5kS3h:gqSC+Lcm1Dd0K/fObT/bGihssp1VmvE4
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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" d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kkjauk.exe -
Executes dropped EXE 1 IoCs
pid Process 4436 kkjauk.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 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /B" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /Y" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /O" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /A" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /c" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /l" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /j" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /Q" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /G" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /U" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /w" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /M" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /m" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /X" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /V" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /H" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /n" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /g" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /D" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /z" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /S" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /v" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /y" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /h" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /x" kkjauk.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /T" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /f" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /K" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /F" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /e" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /q" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /o" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /E" kkjauk.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /C" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /J" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /R" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /W" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /i" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /k" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /L" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /u" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /r" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /d" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /o" d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /a" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /b" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /s" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /p" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /I" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /Z" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /N" kkjauk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kkjauk = "C:\\Users\\Admin\\kkjauk.exe /P" kkjauk.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 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe 4436 kkjauk.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 4436 kkjauk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3788 wrote to memory of 4436 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 78 PID 3788 wrote to memory of 4436 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 78 PID 3788 wrote to memory of 4436 3788 d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe"C:\Users\Admin\AppData\Local\Temp\d00b454a2a5992c5e7e56cd81d11a0b8332963845423675d26216e142a7dd1e8.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3788 -
C:\Users\Admin\kkjauk.exe"C:\Users\Admin\kkjauk.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:4436
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
180KB
MD5d4e0521b817c627f6789a1b5bf68bca2
SHA12fed3b20264619216f27240669ec84368066f6ec
SHA256a1d8775afc04e3dbb893fec7cef3b83609cd5d68c9cfc4153c33f5a64e0943ac
SHA512c01d143a7dfd2e8ced46a3cfd0c4d0e70d880d51dfd643a377e13df2df232e77115d934304e31f5f60445af6ecd2da0c11b1aebd1c47b0e296c3305c8e29d59d
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Filesize
180KB
MD5d4e0521b817c627f6789a1b5bf68bca2
SHA12fed3b20264619216f27240669ec84368066f6ec
SHA256a1d8775afc04e3dbb893fec7cef3b83609cd5d68c9cfc4153c33f5a64e0943ac
SHA512c01d143a7dfd2e8ced46a3cfd0c4d0e70d880d51dfd643a377e13df2df232e77115d934304e31f5f60445af6ecd2da0c11b1aebd1c47b0e296c3305c8e29d59d