dridex | 6686210968e45d977fb581b5a43b052ae4af68cf3aec55a2cc234998f1194ba9

General

Target

4c8c21c4c4113bc5efe3d80486b4e924.dll
Size

750KB
MD5

4c8c21c4c4113bc5efe3d80486b4e924
SHA1

8415c8a41dbadf1ef05c7119173f4867a8e8446d
SHA256

6686210968e45d977fb581b5a43b052ae4af68cf3aec55a2cc234998f1194ba9
SHA512

2a9a7284bbee89a75f11a436466cf71ca80d642f7d09e682a181861fdd328ba92955fbe3ee94eff4c8f3f59cbea69bc0d8bcc0d2208a8c5ea7cc1c100266c5ed

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

24 2800 rundll32.exe
26 2800 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
24	2800	rundll32.exe
26	2800	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 2756 wrote to memory of 2800	2756	rundll32.exe	rundll32.exe
PID 2756 wrote to memory of 2800	2756	rundll32.exe	rundll32.exe
PID 2756 wrote to memory of 2800	2756	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c8c21c4c4113bc5efe3d80486b4e924.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2756

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c8c21c4c4113bc5efe3d80486b4e924.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2800

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/2800-115-0x0000000000000000-mapping.dmp

Download
memory/2800-116-0x0000000073880000-0x0000000073949000-memory.dmp

Filesize
804KB

Download
memory/2800-117-0x0000000073880000-0x00000000738BD000-memory.dmp

Filesize
244KB

Download
memory/2800-118-0x0000000073880000-0x0000000073949000-memory.dmp

Filesize
804KB

Download
memory/2800-121-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/2800-120-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/2800-122-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/2800-766-0x0000000002B80000-0x0000000002B81000-memory.dmp

Filesize
4KB

Download

Analysis

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