dridex | b1cc2f74ae19469f2aaf23ad7183164a22c465282ab0c385e44e3d0cc9ef8c27

General

Target

b1cc2f74ae19469f2aaf23ad7183164a22c465282ab0c385e44e3d0cc9ef8c27.dll
Size

196KB
MD5

ae2c44e15d163b6742ece9697d6001bb
SHA1

f4e23e2a58ccbaa475f1decea04397a5af249f91
SHA256

b1cc2f74ae19469f2aaf23ad7183164a22c465282ab0c385e44e3d0cc9ef8c27
SHA512

cabd462fa8679328ed3359d9947a61a5623336f831abe979e09828dae6a9fd9cde83ced405f7ef6746cf94866819637a97c38d90deb85a0f57cc0c647674f68c

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1996-4-0x0000000074A10000-0x0000000074A43000-memory.dmp	dridex_ldr
behavioral1/memory/1996-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1996 rundll32.exe
7 1996 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
5	1996	rundll32.exe
7	1996	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1996	776	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1cc2f74ae19469f2aaf23ad7183164a22c465282ab0c385e44e3d0cc9ef8c27.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:776

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1cc2f74ae19469f2aaf23ad7183164a22c465282ab0c385e44e3d0cc9ef8c27.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1996

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1684-7-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

Filesize
2.5MB

Download
memory/1996-2-0x0000000000000000-mapping.dmp

Download
memory/1996-3-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/1996-4-0x0000000074A10000-0x0000000074A43000-memory.dmp

Filesize
204KB

Download
memory/1996-5-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1996-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp

Filesize
124KB

Download

Analysis

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