Analysis
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max time kernel
181s -
max time network
168s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
04/12/2022, 11:31
Static task
static1
Behavioral task
behavioral1
Sample
4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe
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Size
312KB
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MD5
08a72181682f3d202a74f3e8d4447ec5
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SHA1
494f338de520e5526ad609d312b38dc5dd072c98
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SHA256
4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91
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SHA512
2bafef93756a4f557734be4326aa95ca5888962706476a82d6dae905e55fd4b4a35cfce17d40028faae1a5b417465dc46eb6fcf487d3334d33a6ba3cc4083810
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SSDEEP
6144:uebc0f7XP+g3AGJpWVzuoRHeEgRK/fObT/bGiJKv6R7MkZ4lUr8W9HuOGKqvsMMJ:vw27/XvLWpuOeEgRK/fObT/bGiJlMkZp
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" sjcas.exe -
Executes dropped EXE 1 IoCs
pid Process 1584 sjcas.exe -
Loads dropped DLL 2 IoCs
pid Process 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /r" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /s" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /d" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /G" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /S" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /w" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /n" sjcas.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /T" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /o" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /F" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /L" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /E" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /v" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /Q" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /E" 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /J" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /p" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /X" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /b" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /f" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /x" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /c" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /m" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /M" sjcas.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /K" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /A" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /D" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /q" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /Y" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /y" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /u" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /t" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /C" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /j" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /g" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /k" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /e" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /W" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /O" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /R" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /h" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /Z" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /N" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /a" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /B" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /H" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /P" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /l" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /i" sjcas.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\sjcas = "C:\\Users\\Admin\\sjcas.exe /I" sjcas.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 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe 1584 sjcas.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 1584 sjcas.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 240 wrote to memory of 1584 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 28 PID 240 wrote to memory of 1584 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 28 PID 240 wrote to memory of 1584 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 28 PID 240 wrote to memory of 1584 240 4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe"C:\Users\Admin\AppData\Local\Temp\4bbea2228d5a08b94cf7bd15b09db01411773bf2dcc66498ceec6b04fae37a91.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:240 -
C:\Users\Admin\sjcas.exe"C:\Users\Admin\sjcas.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:1584
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
312KB
MD50cf6faafc89a39f5ce9d24b3715c2ea2
SHA19057bfee85b8af664ef1b313237f13a7a328df55
SHA256e9dd9bac362f615960390cd34bee4dcf3d6ab398752d86bbe4ce2c113f2add1c
SHA512127049bcc70bca4c565decd0e6fd19e35e0e3bd4f1bf1d39ef55ea01f556b7d2bbb6726d5de13ac10a946cb3840b02875f4de1dff784c25959b138f2f1eefd40
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Filesize
312KB
MD50cf6faafc89a39f5ce9d24b3715c2ea2
SHA19057bfee85b8af664ef1b313237f13a7a328df55
SHA256e9dd9bac362f615960390cd34bee4dcf3d6ab398752d86bbe4ce2c113f2add1c
SHA512127049bcc70bca4c565decd0e6fd19e35e0e3bd4f1bf1d39ef55ea01f556b7d2bbb6726d5de13ac10a946cb3840b02875f4de1dff784c25959b138f2f1eefd40
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Filesize
312KB
MD50cf6faafc89a39f5ce9d24b3715c2ea2
SHA19057bfee85b8af664ef1b313237f13a7a328df55
SHA256e9dd9bac362f615960390cd34bee4dcf3d6ab398752d86bbe4ce2c113f2add1c
SHA512127049bcc70bca4c565decd0e6fd19e35e0e3bd4f1bf1d39ef55ea01f556b7d2bbb6726d5de13ac10a946cb3840b02875f4de1dff784c25959b138f2f1eefd40
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Filesize
312KB
MD50cf6faafc89a39f5ce9d24b3715c2ea2
SHA19057bfee85b8af664ef1b313237f13a7a328df55
SHA256e9dd9bac362f615960390cd34bee4dcf3d6ab398752d86bbe4ce2c113f2add1c
SHA512127049bcc70bca4c565decd0e6fd19e35e0e3bd4f1bf1d39ef55ea01f556b7d2bbb6726d5de13ac10a946cb3840b02875f4de1dff784c25959b138f2f1eefd40