dridex | 99435f6e7cbf300f5d8d18e31f3a1b6ed70fdca596a4cc895f96558813a0feac

Analysis

max time kernel
96s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
11-06-2022 16:56

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General

Target

rayzhd.dll
Size

664KB
MD5

f95adad3ef40acfd27ab6863fd3c2508
SHA1

4edede712e418838f20876fd492ca48c7467a67c
SHA256

99435f6e7cbf300f5d8d18e31f3a1b6ed70fdca596a4cc895f96558813a0feac
SHA512

229ab416256bc01f26db6a58479b4b29a8285d17d822d40988bc96ce9315abce88652b75d7ff3440266a302dc8c3961356a33bdda112d169d0613a4d08132ac9

Score

10^/10

dridex 10222 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10222

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

30 1192 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
30	1192	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1996 wrote to memory of 1192	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1192	1996	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1192	1996	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rayzhd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rayzhd.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1192-130-0x0000000000000000-mapping.dmp

Download
memory/1192-131-0x0000000001FD0000-0x000000000210C000-memory.dmp

Filesize
1.2MB

Download
memory/1192-133-0x0000000001FD0000-0x000000000210C000-memory.dmp

Filesize
1.2MB

Download
memory/1192-135-0x0000000001FD0000-0x000000000210C000-memory.dmp

Filesize
1.2MB

Download
memory/1192-134-0x0000000001FD0000-0x000000000200D000-memory.dmp

Filesize
244KB

Download
memory/1192-138-0x0000000001FD0000-0x000000000210C000-memory.dmp

Filesize
1.2MB

Download