dridex | c33275c9f08346b52bcb68850302237c849f210547e0affa4fc8e7b38e0cd233

General

Target

b007b17a8d94a43d03af6b5b6635f4b7.dll
Size

750KB
MD5

b007b17a8d94a43d03af6b5b6635f4b7
SHA1

995cfbbcfa1f50da1c3293c6370c385e51221b92
SHA256

c33275c9f08346b52bcb68850302237c849f210547e0affa4fc8e7b38e0cd233
SHA512

0a1b0c3c107b435f8b12efb2aa815ee66cb64a5ca6a2988d568c0c5dfab3d44294597c08125c2226863b1ddd03b1864c2bb971a2cb3b5d930ed3fa7768eda4e8

Score

10^/10

dridex 10555 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

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 2 IoCs

Processes:

rundll32.exe

flow pid process

3 584 rundll32.exe
6 584 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
3	584	rundll32.exe
6	584	rundll32.exe

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe
PID 1760 wrote to memory of 584	1760	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b007b17a8d94a43d03af6b5b6635f4b7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b007b17a8d94a43d03af6b5b6635f4b7.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/584-54-0x0000000000000000-mapping.dmp

Download
memory/584-55-0x00000000751D1000-0x00000000751D3000-memory.dmp

Filesize
8KB

Download
memory/584-56-0x00000000747C0000-0x0000000074889000-memory.dmp

Filesize
804KB

Download
memory/584-57-0x00000000747C0000-0x00000000747FD000-memory.dmp

Filesize
244KB

Download
memory/584-58-0x00000000747C0000-0x0000000074889000-memory.dmp

Filesize
804KB

Download
memory/584-60-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download

Analysis

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