dridex | 79a3a7441a371606291f8bd47216a503b27a38ec61ba7604c9ba2597a54cc3d8

Analysis

max time kernel
200s
max time network
221s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
26-06-2022 05:48

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General

Target

n9h1k9gwt.dll
Size

518KB
MD5

831c361b1f54a876c98fb6bf3cd5d688
SHA1

7a891d8553c874a3803df6a6a6436860e5d0de41
SHA256

79a3a7441a371606291f8bd47216a503b27a38ec61ba7604c9ba2597a54cc3d8
SHA512

d3e7d49e46ce0aa0d0675471b73ef2f2a5a2772fc57584db24d75259c4e5545a89c4b8506700e552aaf3727673353e9e035924c8beac61462616020097fb9ce1

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

94.126.8.2:443

37.187.161.206:33443

209.59.199.129:4443

157.245.130.146:3786

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

25 4752 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
25	4752	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 3232 wrote to memory of 4752	3232	rundll32.exe	rundll32.exe
PID 3232 wrote to memory of 4752	3232	rundll32.exe	rundll32.exe
PID 3232 wrote to memory of 4752	3232	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\n9h1k9gwt.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3232

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\n9h1k9gwt.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4752-130-0x0000000000000000-mapping.dmp

Download
memory/4752-131-0x0000000075500000-0x000000007553D000-memory.dmp

Filesize
244KB

Download
memory/4752-132-0x0000000075500000-0x0000000075594000-memory.dmp

Filesize
592KB

Download
memory/4752-134-0x0000000075500000-0x0000000075594000-memory.dmp

Filesize
592KB

Download
memory/4752-135-0x0000000075500000-0x0000000075594000-memory.dmp

Filesize
592KB

Download