dridex | 0bbf8dcb9ab6e8e50f127aa485186f8e75cc7428b9f2d5aa0a98ab35690988f5

General

Target

7912f4bdf9b0f73f39462fd29536a3be.dll
Size

750KB
MD5

7912f4bdf9b0f73f39462fd29536a3be
SHA1

c50a63b068c3d16b81c66ad6ebc36f9b50b67916
SHA256

0bbf8dcb9ab6e8e50f127aa485186f8e75cc7428b9f2d5aa0a98ab35690988f5
SHA512

7c887db4f835fd1445a599f0e790a625b504dfaa417fb0f40bc064d93fec1ac96289c86503821ce66f8f666582e8d52af5b329d89242a4b9cf12a6886299738b

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

3 532 rundll32.exe
6 532 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	532	rundll32.exe
6	532	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 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe
PID 1788 wrote to memory of 532	1788	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7912f4bdf9b0f73f39462fd29536a3be.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7912f4bdf9b0f73f39462fd29536a3be.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:532

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/532-55-0x0000000000000000-mapping.dmp

Download
memory/532-56-0x0000000076431000-0x0000000076433000-memory.dmp

Filesize
8KB

Download
memory/532-57-0x00000000748F0000-0x00000000749B9000-memory.dmp

Filesize
804KB

Download
memory/532-58-0x00000000748F0000-0x000000007492D000-memory.dmp

Filesize
244KB

Download
memory/532-59-0x00000000748F0000-0x00000000749B9000-memory.dmp

Filesize
804KB

Download
memory/532-61-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download

Analysis

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