Analysis
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max time kernel
46s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
19-09-2022 04:23
Static task
static1
Behavioral task
behavioral1
Sample
758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe
Resource
win10v2004-20220901-en
General
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Target
758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe
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Size
243KB
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MD5
610fc6dd02d7dee6693664e206d71800
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SHA1
c706fcde5bcedcffa9537b6b313c748f30630a79
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SHA256
758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719
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SHA512
28c3df2ce14f80ab65f1f577c26a798282d1a0a78f841491763b2240e0f9a07518e32cf6db7fcf4da4eb19a6c0014825ad6af4d6c341ceb98d09945764c354a6
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SSDEEP
768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3ini2L2o27+IpFh12V:gMDgG4ChfiPOefgsOUqQwg
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe -
Drops file in Windows directory 14 IoCs
description ioc Process File created C:\Windows\System\mplayerw.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\System\Explorer.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\Help\intret.cnt 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\System\Sysexp32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\System\mplayerw.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\System\applets.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\Syssrc32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\System\fndfst32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\System\fndfst32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\System\Explorer.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\Help\intret.cnt 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\System\applets.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File opened for modification C:\Windows\Syssrc32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe File created C:\Windows\System\Sysexp32.exe 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1228 1204 WerFault.exe 26 -
Modifies registry class 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1" 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1228 1204 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe 27 PID 1204 wrote to memory of 1228 1204 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe 27 PID 1204 wrote to memory of 1228 1204 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe 27 PID 1204 wrote to memory of 1228 1204 758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe"C:\Users\Admin\AppData\Local\Temp\758e7e56024a30dd9538ce35558b259beec2d6d2fe87027630fa59115d50d719.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 922⤵
- Program crash
PID:1228
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