Analysis
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max time kernel
569s -
max time network
421s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2023 01:25
Behavioral task
behavioral1
Sample
Chaos Ransomware Builder v4.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
Chaos Ransomware Builder v4.exe
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Size
550KB
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MD5
8b855e56e41a6e10d28522a20c1e0341
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SHA1
17ea75272cfe3749c6727388fd444d2c970f9d01
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SHA256
f2665f89ba53abd3deb81988c0d5194992214053e77fc89b98b64a31a7504d77
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SHA512
eefab442b9c1be379e00c6a7de9d6d7d327ad8fd52d62a5744e104f6caa44f7147a8e74f340870f9c017980a3d8a5a86a05f76434539c01270c442a66b2af908
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SSDEEP
3072:9UJAYdi2YcRVm16Pn6tpzqJG/sX9i2YcRPm16Pn6ckCjSH5EyR9aKZt18rTu+i2S:9aiWm162qJEsNiym16ryAiym168
Score
10/10
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 1 IoCs
resource yara_rule behavioral1/memory/2224-0-0x0000000000460000-0x00000000004EE000-memory.dmp family_chaos -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 2224 Chaos Ransomware Builder v4.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 3268 Chaos Ransomware Builder v4.exe 1588 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1588 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2224 Chaos Ransomware Builder v4.exe Token: SeDebugPrivilege 1588 taskmgr.exe Token: SeSystemProfilePrivilege 1588 taskmgr.exe Token: SeCreateGlobalPrivilege 1588 taskmgr.exe Token: SeDebugPrivilege 3268 Chaos Ransomware Builder v4.exe Token: SeDebugPrivilege 4384 Chaos Ransomware Builder v4.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe 1588 taskmgr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2224
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:920
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /71⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1588
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C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3268
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C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"C:\Users\Admin\AppData\Local\Temp\Chaos Ransomware Builder v4.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4384