Analysis
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max time kernel
71s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
24-02-2023 13:17
Static task
static1
Behavioral task
behavioral1
Sample
296a3994412ee27eb9b76ca0738f91ae.dll
Resource
win7-20230220-en
windows7-x64
Behavioral task
behavioral2
Sample
296a3994412ee27eb9b76ca0738f91ae.dll
Resource
win10v2004-20230220-en
windows10-2004-x64
General
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Target
296a3994412ee27eb9b76ca0738f91ae.dll
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Size
164KB
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MD5
296a3994412ee27eb9b76ca0738f91ae
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SHA1
17fb30ce969ffa7c70b19f00aa0358e276bf6c94
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SHA256
6edcd6a56400375b8f349a96f1ec0fc03c6b4f26c6f12ed2cfb032744fb9b929
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SHA512
0c367128c976a1a91bfcd5d23e18b94b30adde4bbc3a75d5c746151cd2c59656736d63d84f3e07e1e011aff96e81a6ccff740108a13818f1d8f82bc934052126
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SSDEEP
3072:xNLlQvwD5d6fh6yjBPAoBLEPg7JBIiPTjU72:7KSdoA6LEPimibj42
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/4488-133-0x0000000002510000-0x000000000255E000-memory.dmp fatalrat behavioral2/memory/4488-134-0x00000000022B0000-0x00000000022D8000-memory.dmp fatalrat -
Blocklisted process makes network request 2 IoCs
flow pid Process 3 4488 rundll32.exe 6 4488 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 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe 4488 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4640 wrote to memory of 4488 4640 rundll32.exe 84 PID 4640 wrote to memory of 4488 4640 rundll32.exe 84 PID 4640 wrote to memory of 4488 4640 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\296a3994412ee27eb9b76ca0738f91ae.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\296a3994412ee27eb9b76ca0738f91ae.dll,#12⤵
- Blocklisted process makes network request
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4488
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