dridex | 1ec28071b46311ee8b7ac671edb44624860fc146a6be705559a669782db67a57

General

Target

c1511f642055625117520beca66d02df.dll
Size

750KB
MD5

c1511f642055625117520beca66d02df
SHA1

da181f3f9f22d057dc3bb681e0eb8b85280dec5a
SHA256

1ec28071b46311ee8b7ac671edb44624860fc146a6be705559a669782db67a57
SHA512

7d9ff9cfd097e3e6a34516154022da08f6523f0838ed46f5f944ec58a49f4c372cdb4ed5793299bd97e43c5819551771e50f637c9ec570680d20d3e957d14b49

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

3 832 rundll32.exe
6 832 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	832	rundll32.exe
6	832	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 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 832	268	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1511f642055625117520beca66d02df.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1511f642055625117520beca66d02df.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/832-54-0x0000000000000000-mapping.dmp

Download
memory/832-55-0x0000000074F81000-0x0000000074F83000-memory.dmp

Filesize
8KB

Download
memory/832-56-0x0000000074840000-0x0000000074909000-memory.dmp

Filesize
804KB

Download
memory/832-57-0x0000000074840000-0x000000007487D000-memory.dmp

Filesize
244KB

Download
memory/832-58-0x0000000074840000-0x0000000074909000-memory.dmp

Filesize
804KB

Download
memory/832-60-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

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