dridex | 8ceb186696c9bda47466e5ecd1d0f0d5f93318e8bdc6b42454dd3be884e99e33

Analysis

max time kernel
14s
max time network
112s
platform
windows10_x64
resource
win10v20201028
submitted
26-11-2020 12:05

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General

Target

ucjk7st.dll
Size

426KB
MD5

455e8c40a659762249a13b5ef6cfb2cb
SHA1

818423b1fc4f4149e2bda0feb359c1605de1eb6c
SHA256

8ceb186696c9bda47466e5ecd1d0f0d5f93318e8bdc6b42454dd3be884e99e33
SHA512

7ba2b6f6c452009e74a31a0da2bc3a27e565fe12997c33cb0e8cf9397cd61ec232e2870516aa94e4f2affd2291f6b728b77775a6f8732dd5133a4df28a341123

Score

10^/10

dridex 10555 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

10555

194.225.58.216:443

178.254.40.132:691

216.172.165.70:3889

198.57.200.100:3786

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/408-1-0x0000000004E50000-0x0000000004E8D000-memory.dmp	dridex_ldr

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 640 wrote to memory of 408	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 408	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 408	640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucjk7st.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucjk7st.dll,#1
2⤵
PID:408

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/408-0-0x0000000000000000-mapping.dmp

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memory/408-1-0x0000000004E50000-0x0000000004E8D000-memory.dmp

Filesize
244KB

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