Analysis
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max time kernel
137s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
21-03-2022 09:00
Static task
static1
Behavioral task
behavioral1
Sample
41d46166752bc1ca3251f45caaab670c.exe
Resource
win7-20220310-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
41d46166752bc1ca3251f45caaab670c.exe
Resource
win10v2004-en-20220113
0 signatures
0 seconds
General
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Target
41d46166752bc1ca3251f45caaab670c.exe
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Size
337KB
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MD5
41d46166752bc1ca3251f45caaab670c
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SHA1
bde17b99bd1502e04c644548f40fdb6212db2aa7
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SHA256
7325d304e8560ff643a656fd3689adcaec39650840efa8273c4556f6532e98d5
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SHA512
6606c144a73d59cf68080bfa58f8e26401d768be614bd94843a2eb003e457ee53487b0e9284e4dffaea9befeae1c57edd39f9e84d0c1df261b31372473077741
Score
10/10
Malware Config
Signatures
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VKeylogger
A keylogger first seen in Nov 2020.
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VKeylogger Payload 3 IoCs
resource yara_rule behavioral2/memory/1756-132-0x0000000002210000-0x000000000221E000-memory.dmp family_vkeylogger behavioral2/memory/1756-133-0x0000000000400000-0x00000000004D5000-memory.dmp family_vkeylogger behavioral2/memory/3708-134-0x0000000001040000-0x000000000104F000-memory.dmp family_vkeylogger -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fefgre = "C:\\Users\\Admin\\AppData\\Local\\Temp\\41d46166752bc1ca3251f45caaab670c.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ytyr = "C:\\Windows\\system32\\mshta.exe javascript:x=new%20ActiveXObject(\"wscript.shell\");v=x.RegRead(\"HKCU\\\\Software\\\\Microsoft\\\\SMSvcHost\\\\ComponentID\");eval(v);" explorer.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1756 set thread context of 3708 1756 41d46166752bc1ca3251f45caaab670c.exe 84 -
Program crash 1 IoCs
pid pid_target Process procid_target 4452 1756 WerFault.exe 78 -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1756 41d46166752bc1ca3251f45caaab670c.exe 3708 explorer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3708 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3708 explorer.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1756 wrote to memory of 3708 1756 41d46166752bc1ca3251f45caaab670c.exe 84 PID 1756 wrote to memory of 3708 1756 41d46166752bc1ca3251f45caaab670c.exe 84 PID 1756 wrote to memory of 3708 1756 41d46166752bc1ca3251f45caaab670c.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\41d46166752bc1ca3251f45caaab670c.exe"C:\Users\Admin\AppData\Local\Temp\41d46166752bc1ca3251f45caaab670c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3708
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1756 -s 4802⤵
- Program crash
PID:4452
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1756 -ip 17561⤵PID:4264