Analysis
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max time kernel
63s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26-02-2023 19:00
Static task
static1
Behavioral task
behavioral1
Sample
3632599571a4d48730d07a09343d1bde.dll
Resource
win7-20230220-en
windows7-x64
Behavioral task
behavioral2
Sample
3632599571a4d48730d07a09343d1bde.dll
Resource
win10v2004-20230220-en
windows10-2004-x64
General
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Target
3632599571a4d48730d07a09343d1bde.dll
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Size
108KB
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MD5
3632599571a4d48730d07a09343d1bde
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SHA1
83b1ede8c8f10b92d7296d375fb0612e0b080da3
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SHA256
a3cd7a6ace2b75e39ea2a4ff5a3e4e27c840dc32606cd74990224814b2d3ac9d
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SHA512
947e71dbdad185c469cd04d5e0f5c1429098e3fe861f9f158e42348a937f85cedfb0892c09457d70547bf5e27cf880c05e49bdd1f8f431df9db3280b5573f9e7
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SSDEEP
1536:Oh3MU/5bLDCMtm/ejs5x2WcHG82RqNoRKV2KoyqkvILnzZh/Qz6r:mt5bLDtm/ejs5xqHG82RWqWILzZRQO
Malware Config
Signatures
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FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
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Fatal Rat payload 2 IoCs
resource yara_rule behavioral2/memory/4368-133-0x0000000002D20000-0x0000000002D6E000-memory.dmp fatalrat behavioral2/memory/4368-134-0x0000000002C30000-0x0000000002C58000-memory.dmp fatalrat -
Blocklisted process makes network request 2 IoCs
flow pid Process 11 4368 rundll32.exe 13 4368 rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe 4368 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2780 wrote to memory of 4368 2780 rundll32.exe 83 PID 2780 wrote to memory of 4368 2780 rundll32.exe 83 PID 2780 wrote to memory of 4368 2780 rundll32.exe 83
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3632599571a4d48730d07a09343d1bde.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3632599571a4d48730d07a09343d1bde.dll,#12⤵
- Blocklisted process makes network request
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4368
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