Analysis
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max time kernel
44s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 21:34
Static task
static1
Behavioral task
behavioral1
Sample
c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe
Resource
win10v2004-20221111-en
General
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Target
c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe
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Size
163KB
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MD5
3b874ede990900d41493ff6abea5aa88
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SHA1
d30a8ea2bec85e6ca83047b5bff7e13c14067df7
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SHA256
c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0
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SHA512
c169f82a11a09576644c73c0cbbb39611ac55c01f80c0ceebc1da23ec4bbfe33401aa9f9fbc04da6ba2e97f01501627c3f69e77d4f65f77527763dc79bff2f95
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SSDEEP
768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iepFV2DIQqSO2qW:gMDgG4ChfiPOefgsOUqQwgG
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\Explorer Shell = "C:\\Windows\\System\\Explorer.exe" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe -
Drops file in Windows directory 14 IoCs
description ioc Process File opened for modification C:\Windows\System\mplayerw.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\System\Explorer.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\Help\intret.cnt c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\Help\intret.cnt c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\System\Sysexp32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\System\Sysexp32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\System\applets.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\Syssrc32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\System\Explorer.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\System\mplayerw.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\System\applets.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\Syssrc32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File opened for modification C:\Windows\System\fndfst32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe File created C:\Windows\System\fndfst32.exe c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1128 2016 WerFault.exe 25 -
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" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1" c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2016 wrote to memory of 1128 2016 c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe 26 PID 2016 wrote to memory of 1128 2016 c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe 26 PID 2016 wrote to memory of 1128 2016 c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe 26 PID 2016 wrote to memory of 1128 2016 c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe"C:\Users\Admin\AppData\Local\Temp\c432525d97cdc20eeac8022e17cc1fe1f100f1b36d95df91838979c28ba8bfa0.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 922⤵
- Program crash
PID:1128
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