Analysis
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max time kernel
141s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-03-2024 22:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b33765481c44033b5016331146e40022.dll
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
b33765481c44033b5016331146e40022.dll
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Size
188KB
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MD5
b33765481c44033b5016331146e40022
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SHA1
33d03e60b7a4866a48b0ba3cd70018e43cfcf08f
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SHA256
d46ed3025a63aaea60d748935a64dd2d95533eaaf29a4ffd68ea0cc924e95055
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SHA512
936332d04e4dab044f9a14f4433adcadbe608778cbf054557638e53b50095c415158b16a0248266adf9996e4f295c377cb227527aee6455b4d35b28aed815a75
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SSDEEP
3072:lA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAojo:lzIqATVfQeV2FZalKq6jtGJWuTmd
Malware Config
Extracted
Family
dridex
Botnet
22201
C2
103.82.248.59:443
54.39.98.141:6602
103.109.247.8:10443
rc4.plain
rc4.plain
Signatures
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resource yara_rule behavioral1/memory/2028-0-0x0000000075260000-0x0000000075290000-memory.dmp dridex_ldr -
Program crash 1 IoCs
pid pid_target Process procid_target 2560 2028 WerFault.exe 28 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 812 wrote to memory of 2028 812 rundll32.exe 28 PID 2028 wrote to memory of 2560 2028 rundll32.exe 29 PID 2028 wrote to memory of 2560 2028 rundll32.exe 29 PID 2028 wrote to memory of 2560 2028 rundll32.exe 29 PID 2028 wrote to memory of 2560 2028 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b33765481c44033b5016331146e40022.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:812 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b33765481c44033b5016331146e40022.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 3083⤵
- Program crash
PID:2560
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