Analysis
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max time kernel
141s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
05/11/2024, 23:39
Static task
static1
Behavioral task
behavioral1
Sample
76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe
Resource
win10v2004-20241007-en
General
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Target
76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe
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Size
5.4MB
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MD5
2f825bb8db9d34c2f6e63c8311a61640
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SHA1
cd057e914f0078871484732a0001008412a42255
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SHA256
76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2
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SHA512
b183ac5184891a83a269fdc72f1adf9b46ded3824e204595bbc9b1ce16e16657c6e0ff540c11dc30e8a67df3062af34de2eecd859f3153b971c966e3b05ffae6
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SSDEEP
49152:9GKsY+dy0ZScIBqBT11s9GY568MNwu4acTC3ZvFXkP5VugzsIYU:fsY+dy0ZScIBqBT116EHcTeqqI3
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2564 sysx32.exe -
Loads dropped DLL 2 IoCs
pid Process 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sys32 = "C:\\Windows\\system32\\sysx32.exe" 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\A: sysx32.exe File opened (read-only) \??\B: sysx32.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\sysx32.exe 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe File opened for modification C:\Windows\SysWOW64\sysx32.exe 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe File created C:\Windows\SysWOW64\sysx32.exe sysx32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe File opened for modification C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2140 wrote to memory of 2564 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe 30 PID 2140 wrote to memory of 2564 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe 30 PID 2140 wrote to memory of 2564 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe 30 PID 2140 wrote to memory of 2564 2140 76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe"C:\Users\Admin\AppData\Local\Temp\76a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\SysWOW64\sysx32.exeC:\Windows\system32\sysx32.exe /scan2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
PID:2564
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5.4MB
MD52f825bb8db9d34c2f6e63c8311a61640
SHA1cd057e914f0078871484732a0001008412a42255
SHA25676a9f90a2a4c6736f100b7c79c68f205e374744435429a4e2dba8e0d511a48b2
SHA512b183ac5184891a83a269fdc72f1adf9b46ded3824e204595bbc9b1ce16e16657c6e0ff540c11dc30e8a67df3062af34de2eecd859f3153b971c966e3b05ffae6