dridex | 2e744f40772c5185423076d877f8f2ab7b8718f3e6cee37bf4e5b5e0b58e4d30

General

Target

7927ceb3ba1bd526b882c3a798731fb9.dll
Size

750KB
MD5

7927ceb3ba1bd526b882c3a798731fb9
SHA1

a905d6f8beb8aedc5e106a4be1236598acfa2c48
SHA256

2e744f40772c5185423076d877f8f2ab7b8718f3e6cee37bf4e5b5e0b58e4d30
SHA512

86c566a46e15f255e3c41853db672e2cbcd7f58670a41b77692bcd72c71e7410b0d30c231e1910d7dddade8b2e24b0fc8fe1186caf3dfa63803106b7ff48f32d

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

27 1504 rundll32.exe
28 1504 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
27	1504	rundll32.exe
28	1504	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 1168 wrote to memory of 1504	1168	rundll32.exe	rundll32.exe
PID 1168 wrote to memory of 1504	1168	rundll32.exe	rundll32.exe
PID 1168 wrote to memory of 1504	1168	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7927ceb3ba1bd526b882c3a798731fb9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7927ceb3ba1bd526b882c3a798731fb9.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1504

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/1504-115-0x0000000000000000-mapping.dmp

Download
memory/1504-116-0x00000000743E0000-0x00000000744A9000-memory.dmp

Filesize
804KB

Download
memory/1504-117-0x00000000743E0000-0x000000007441D000-memory.dmp

Filesize
244KB

Download
memory/1504-118-0x00000000743E0000-0x00000000744A9000-memory.dmp

Filesize
804KB

Download
memory/1504-121-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/1504-120-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/1504-122-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/1504-935-0x0000000000B40000-0x0000000000C8A000-memory.dmp

Filesize
1.3MB

Download

Analysis

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