dridex | 533dd75c72e307755761a1d5a4bfcf511b122c7d8d2a3adf7e3b81b725557c34

Analysis

max time kernel
29s
max time network
13s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 16:33

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General

Target

533dd75c72e307755761a1d5a4bfcf511b122c7d8d2a3adf7e3b81b725557c34.dll
Size

162KB
MD5

f975d4ed242fa53ec1ad72072ef9f4ef
SHA1

87ec910dae7ff30ca78c243680bf930a0e00500c
SHA256

533dd75c72e307755761a1d5a4bfcf511b122c7d8d2a3adf7e3b81b725557c34
SHA512

6ef4528b4b195f5dd42867d3b2b62578c8a3d1a1d226df5ad1709d96b8beeaf7910a4a545dd9f8fb5d3c1bc1e87e8a1191910dcc45a27ebdbff18c41b92bbc90

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/2020-62-0x0000000074FD0000-0x0000000074FFE000-memory.dmp	dridex_ldr

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

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 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2020	1632	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\533dd75c72e307755761a1d5a4bfcf511b122c7d8d2a3adf7e3b81b725557c34.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\533dd75c72e307755761a1d5a4bfcf511b122c7d8d2a3adf7e3b81b725557c34.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2020

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2020-60-0x0000000000000000-mapping.dmp

Download
memory/2020-61-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/2020-62-0x0000000074FD0000-0x0000000074FFE000-memory.dmp

Filesize
184KB

Download
memory/2020-64-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download