Analysis
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max time kernel
122s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
31/10/2024, 04:53
Behavioral task
behavioral1
Sample
c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe
Resource
win10v2004-20241007-en
General
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Target
c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe
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Size
135KB
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MD5
8ef01880cfdebf7288a039d279640ba2
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SHA1
f5960008e1fd9503937a4a8302989349d179d5f2
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SHA256
c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a
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SHA512
a94582df361a7948ed7c227c44aabd69942e68277bdf038e74a6075b0f2f0dcdfa8834da75a7ce687c1c7dc70f02f011f844a57bf4049d26a685403c0d69b374
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SSDEEP
1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOU:YfU/WF6QMauSuiWNi9eNOl0007NZIOU
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2732 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2748 wuauclt.exe -
Loads dropped DLL 1 IoCs
pid Process 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.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\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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resource yara_rule behavioral1/memory/2448-0-0x0000000000820000-0x0000000000848000-memory.dmp upx behavioral1/files/0x000900000001756b-2.dat upx behavioral1/memory/2748-7-0x0000000000A60000-0x0000000000A88000-memory.dmp upx behavioral1/memory/2448-8-0x0000000000820000-0x0000000000848000-memory.dmp upx behavioral1/memory/2748-10-0x0000000000A60000-0x0000000000A88000-memory.dmp upx behavioral1/memory/2448-11-0x0000000000820000-0x0000000000848000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 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 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wuauclt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2448 wrote to memory of 2748 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 30 PID 2448 wrote to memory of 2748 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 30 PID 2448 wrote to memory of 2748 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 30 PID 2448 wrote to memory of 2748 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 30 PID 2448 wrote to memory of 2732 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 31 PID 2448 wrote to memory of 2732 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 31 PID 2448 wrote to memory of 2732 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 31 PID 2448 wrote to memory of 2732 2448 c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe"C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448 -
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2748
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C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe" >> NUL2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2732
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
135KB
MD51b9ccdef36529713682b9ee3230cfe2a
SHA15b944671c115135a15a83dd8e42901626945cabf
SHA256a61a8d8d05074a9e1fbf251a7acb6311a32ebc8f9fefdfb7a8e1e12a70783b3e
SHA5122756fb8dd8487e7f26bc89f0fa7beb854d9fda56f2f4f9eec00f7613bcfa88d9c9dd265dc8e4b2f4647662e44b47537bdef074f6816149795dbede442dbab362