Analysis
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max time kernel
142s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-03-2024 12:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b21e92cb3d9f6b107aa111c61202df03.dll
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
b21e92cb3d9f6b107aa111c61202df03.dll
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Size
188KB
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MD5
b21e92cb3d9f6b107aa111c61202df03
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SHA1
950ee1d0cbbcb0fa4d5b96fb75619bfb27c47212
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SHA256
e275b2c44a7f3cb1145ac8124e5235f43958b557a2b914640f6f71aa9600c59c
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SHA512
14c8908b124444c6ec2621b13f6e380fc2d3af0bc4a0da41f27023d70ecfbc46073d45a3855e26aafb671fb326cbbf696338180f809b77d1f89037cd3e84c805
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SSDEEP
3072:1A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAobo:1zIqATVfQeV2FZalKq6jtGJWuTmd
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/3044-0-0x0000000074940000-0x0000000074970000-memory.dmp dridex_ldr behavioral1/memory/3044-2-0x0000000074940000-0x0000000074970000-memory.dmp dridex_ldr -
Program crash 1 IoCs
pid pid_target Process procid_target 2988 3044 WerFault.exe 28 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3020 wrote to memory of 3044 3020 rundll32.exe 28 PID 3044 wrote to memory of 2988 3044 rundll32.exe 29 PID 3044 wrote to memory of 2988 3044 rundll32.exe 29 PID 3044 wrote to memory of 2988 3044 rundll32.exe 29 PID 3044 wrote to memory of 2988 3044 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3020 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3044 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 3083⤵
- Program crash
PID:2988
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