dridex | b775a1f8663e7bdeef07cdd7497b91fa82dd7ab1015d138b2aeb8b51e77d3895

Analysis

max time kernel
92s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
12-07-2022 03:27

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General

Target

7427287604e93881e59bf3b7685a470ac589682e.dll
Size

473KB
MD5

bd1e5cf467316c24f4a99e4d904ed28e
SHA1

7427287604e93881e59bf3b7685a470ac589682e
SHA256

b775a1f8663e7bdeef07cdd7497b91fa82dd7ab1015d138b2aeb8b51e77d3895
SHA512

5083f7b2a18cd7b2f8e4b254c7b01147c5de30eb96f99a09ef5015f5975fe11d99cf8d8bc26d72d4259c353fc8b79cde1938379b1dcdd092bf589e9aa97bb0e7

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

177.87.70.3:443

213.133.102.195:3889

27.254.174.93:33443

27.254.174.77:4443

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

34 3948 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
34	3948	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 4204 wrote to memory of 3948	4204	rundll32.exe	rundll32.exe
PID 4204 wrote to memory of 3948	4204	rundll32.exe	rundll32.exe
PID 4204 wrote to memory of 3948	4204	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7427287604e93881e59bf3b7685a470ac589682e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4204

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7427287604e93881e59bf3b7685a470ac589682e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3948

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/3948-130-0x0000000000000000-mapping.dmp

Download
memory/3948-132-0x0000000075490000-0x0000000075561000-memory.dmp

Filesize
836KB

Download
memory/3948-131-0x0000000075490000-0x00000000754CD000-memory.dmp

Filesize
244KB

Download
memory/3948-134-0x0000000075490000-0x0000000075561000-memory.dmp

Filesize
836KB

Download
memory/3948-135-0x0000000075490000-0x0000000075561000-memory.dmp

Filesize
836KB

Download