dridex | 7144729552a1b5ded6df7bcd87d5a555621af84b1a3f246772b23b296cb33d65

General

Target

c58c2949ed8a37b1e249d1407c975dac.dll
Size

750KB
MD5

c58c2949ed8a37b1e249d1407c975dac
SHA1

46f23e54f7461b2f833869c2b351a7c606defdae
SHA256

7144729552a1b5ded6df7bcd87d5a555621af84b1a3f246772b23b296cb33d65
SHA512

82f50ff8b3003dfad778a11efc5d20c180618fac5f32502fe0d9292edbd0ec9e797efb33315bfa62b368b195084aa6ca1d677757b702d6443d1c23e6fe280aa6

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 1376 rundll32.exe
6 1376 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	1376	rundll32.exe
6	1376	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 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1376	268	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c58c2949ed8a37b1e249d1407c975dac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c58c2949ed8a37b1e249d1407c975dac.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1376

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/1376-54-0x0000000000000000-mapping.dmp

Download
memory/1376-55-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/1376-56-0x0000000074810000-0x00000000748D9000-memory.dmp

Filesize
804KB

Download
memory/1376-58-0x0000000074810000-0x00000000748D9000-memory.dmp

Filesize
804KB

Download
memory/1376-57-0x0000000074810000-0x000000007484D000-memory.dmp

Filesize
244KB

Download
memory/1376-60-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download

Analysis

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