dridex | 1daf833cafa900edd60fd7cefbef566ef99a2777a3edde03c383a7ed6a8c2bd3

Analysis

max time kernel
112s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
26-06-2022 06:06

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General

Target

tz5mgy9.dll
Size

1.0MB
MD5

c6c46576974a7ff8b9a7ff524b22f4a4
SHA1

e5cba18fc2b89856cd7b5fd004c2f690b0c23848
SHA256

1daf833cafa900edd60fd7cefbef566ef99a2777a3edde03c383a7ed6a8c2bd3
SHA512

d2e8eb5a45e64d5efb05f448edbbfd4c4f2b1c6ed098e684c1d8bc2aad6f7d34ed09f87aacee36c886142a93702959da09d8d47f43ae4d9906df3e437ee93642

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

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

22 624 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
22	624	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 4636 wrote to memory of 624	4636	rundll32.exe	rundll32.exe
PID 4636 wrote to memory of 624	4636	rundll32.exe	rundll32.exe
PID 4636 wrote to memory of 624	4636	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tz5mgy9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4636

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tz5mgy9.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:624

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/624-130-0x0000000000000000-mapping.dmp

Download
memory/624-131-0x0000000074E80000-0x0000000074F9B000-memory.dmp

Filesize
1.1MB

Download
memory/624-132-0x0000000074E80000-0x0000000074EBD000-memory.dmp

Filesize
244KB

Download
memory/624-133-0x0000000074E80000-0x0000000074F9B000-memory.dmp

Filesize
1.1MB

Download
memory/624-135-0x0000000074E80000-0x0000000074F9B000-memory.dmp

Filesize
1.1MB

Download
memory/624-136-0x0000000074E80000-0x0000000074F9B000-memory.dmp

Filesize
1.1MB

Download