Analysis
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max time kernel
142s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
22-07-2022 20:04
Static task
static1
Behavioral task
behavioral1
Sample
039cf4716062ee3afde9a567a84987af.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
039cf4716062ee3afde9a567a84987af.exe
Resource
win10v2004-20220721-en
General
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Target
039cf4716062ee3afde9a567a84987af.exe
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Size
84KB
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MD5
039cf4716062ee3afde9a567a84987af
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SHA1
f26b7ea6ef6a645988a13677c04d38d10a6f9420
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SHA256
023ffeb6a2cf7318bc93f4c944989dfaf0d583c1ed3140795fd0342410593d14
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SHA512
4acedfc5fe7fab5c440bc909f28c463e8b3948ce36eacf09bd9e00b3a1a28fd4a49be55052bdd80ac46b8d0d256863b97f5e4e9db8b84328de82a064bd4f182a
Malware Config
Extracted
bitrat
1.38
crueysaderf.con-ip.com:1880
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communication_password
202cb962ac59075b964b07152d234b70
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tor_process
tor
Signatures
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Processes:
resource yara_rule behavioral2/memory/932-144-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/932-145-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/932-146-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/932-147-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/932-148-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/932-151-0x0000000000400000-0x00000000007E4000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
039cf4716062ee3afde9a567a84987af.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation 039cf4716062ee3afde9a567a84987af.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
039cf4716062ee3afde9a567a84987af.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\Mlcxlzm\\chrome.exe\"" 039cf4716062ee3afde9a567a84987af.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
Processes:
InstallUtil.exepid process 932 InstallUtil.exe 932 InstallUtil.exe 932 InstallUtil.exe 932 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
039cf4716062ee3afde9a567a84987af.exedescription pid process target process PID 3732 set thread context of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.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 4 IoCs
Processes:
powershell.exe039cf4716062ee3afde9a567a84987af.exepid process 2404 powershell.exe 2404 powershell.exe 3732 039cf4716062ee3afde9a567a84987af.exe 3732 039cf4716062ee3afde9a567a84987af.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
039cf4716062ee3afde9a567a84987af.exepowershell.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 3732 039cf4716062ee3afde9a567a84987af.exe Token: SeDebugPrivilege 2404 powershell.exe Token: SeShutdownPrivilege 932 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
InstallUtil.exepid process 932 InstallUtil.exe 932 InstallUtil.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
039cf4716062ee3afde9a567a84987af.exedescription pid process target process PID 3732 wrote to memory of 2404 3732 039cf4716062ee3afde9a567a84987af.exe powershell.exe PID 3732 wrote to memory of 2404 3732 039cf4716062ee3afde9a567a84987af.exe powershell.exe PID 3732 wrote to memory of 2404 3732 039cf4716062ee3afde9a567a84987af.exe powershell.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe PID 3732 wrote to memory of 932 3732 039cf4716062ee3afde9a567a84987af.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\039cf4716062ee3afde9a567a84987af.exe"C:\Users\Admin\AppData\Local\Temp\039cf4716062ee3afde9a567a84987af.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/932-151-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/932-149-0x0000000075130000-0x0000000075169000-memory.dmpFilesize
228KB
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memory/932-156-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-143-0x0000000000000000-mapping.dmp
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memory/932-154-0x0000000075130000-0x0000000075169000-memory.dmpFilesize
228KB
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memory/932-153-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-152-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-150-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-144-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/932-147-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/932-146-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/932-145-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/932-157-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-155-0x00000000754B0000-0x00000000754E9000-memory.dmpFilesize
228KB
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memory/932-148-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/2404-137-0x00000000058C0000-0x0000000005EE8000-memory.dmpFilesize
6.2MB
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memory/2404-140-0x0000000006610000-0x000000000662E000-memory.dmpFilesize
120KB
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memory/2404-139-0x0000000005FA0000-0x0000000006006000-memory.dmpFilesize
408KB
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memory/2404-138-0x0000000005850000-0x00000000058B6000-memory.dmpFilesize
408KB
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memory/2404-141-0x0000000007EA0000-0x000000000851A000-memory.dmpFilesize
6.5MB
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memory/2404-135-0x0000000000000000-mapping.dmp
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memory/2404-136-0x0000000002CD0000-0x0000000002D06000-memory.dmpFilesize
216KB
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memory/2404-142-0x0000000006B10000-0x0000000006B2A000-memory.dmpFilesize
104KB
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memory/3732-131-0x0000000005440000-0x00000000059E4000-memory.dmpFilesize
5.6MB
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memory/3732-130-0x00000000005A0000-0x00000000005BA000-memory.dmpFilesize
104KB
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memory/3732-134-0x000000000B760000-0x000000000B782000-memory.dmpFilesize
136KB
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memory/3732-133-0x0000000005110000-0x000000000511A000-memory.dmpFilesize
40KB
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memory/3732-132-0x0000000004F70000-0x0000000005002000-memory.dmpFilesize
584KB