dridex | 2d5ae6664eb5248294dd2adb28da85444ba12ddbbda67ac286153639bc51f369

General

Target

bb6ef01a83b5e55b03acfb062d0fcafc.dll
Size

750KB
MD5

bb6ef01a83b5e55b03acfb062d0fcafc
SHA1

2ef0ff52756ef0fc7f52003ec2a7265ba527bb88
SHA256

2d5ae6664eb5248294dd2adb28da85444ba12ddbbda67ac286153639bc51f369
SHA512

1e59503f690a9ac7bb06a827a76d4e071597117546ec6d50d2e337bdcef39bd00a3a1b7c6efd9604aef91b832301dea2ee9efd5a1b748be11a3ddbff221e7a5d

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 1592 rundll32.exe
6 1592 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	1592	rundll32.exe
6	1592	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 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1592	1600	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6ef01a83b5e55b03acfb062d0fcafc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6ef01a83b5e55b03acfb062d0fcafc.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1592

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/1592-54-0x0000000000000000-mapping.dmp

Download
memory/1592-55-0x00000000767F1000-0x00000000767F3000-memory.dmp

Filesize
8KB

Download
memory/1592-56-0x0000000075090000-0x0000000075159000-memory.dmp

Filesize
804KB

Download
memory/1592-57-0x0000000075090000-0x00000000750CD000-memory.dmp

Filesize
244KB

Download
memory/1592-58-0x0000000075090000-0x0000000075159000-memory.dmp

Filesize
804KB

Download
memory/1592-60-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

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