dridex | 3f7c187c9539e39d8556dfa534e260aa0255d682aee06e3afdcfe4c047bf6e77

Analysis

max time kernel
173s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
26-06-2022 05:21

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General

Target

bbsc7ejpd.dll
Size

497KB
MD5

4c40878a680989564d69aaaad6675b3d
SHA1

61ad964d616ed4a29fc0d3172840eced09ecc0ae
SHA256

3f7c187c9539e39d8556dfa534e260aa0255d682aee06e3afdcfe4c047bf6e77
SHA512

d997c6078564b628a8a45e3a2eb91b4dc177c892e9d3eff9026c7630bacad8344c4f63d5386e57d38381dc1002c53338001dbb4d6cd58b139b64ff2590165f17

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

178.128.83.165:443

128.199.59.13:8172

110.164.184.226:6516

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

40 4100 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
40	4100	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 920 wrote to memory of 4100	920	rundll32.exe	rundll32.exe
PID 920 wrote to memory of 4100	920	rundll32.exe	rundll32.exe
PID 920 wrote to memory of 4100	920	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbsc7ejpd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:920

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bbsc7ejpd.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4100

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/4100-130-0x0000000000000000-mapping.dmp

Download
memory/4100-132-0x0000000074C20000-0x0000000074CB3000-memory.dmp

Filesize
588KB

Download
memory/4100-131-0x0000000074C20000-0x0000000074C5D000-memory.dmp

Filesize
244KB

Download
memory/4100-134-0x0000000074C20000-0x0000000074CB3000-memory.dmp

Filesize
588KB

Download