dridex | 85a47a4c39cd4645b8311c447875da01bc4afea1d326b0e82d32a7a69b3a4d74

Analysis

max time kernel
44s
max time network
54s
platform
windows10_x64
resource
win10v20210408
submitted
21-04-2021 15:52

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General

Target

85a47a4c39cd4645b8311c447875da01bc4afea1d326b0e82d32a7a69b3a4d74.dll
Size

161KB
MD5

e1418e83bb98e28e1317e0b45daad33c
SHA1

830b5b6bd461bbd93f63e0d1eaff8e38a1419ea7
SHA256

85a47a4c39cd4645b8311c447875da01bc4afea1d326b0e82d32a7a69b3a4d74
SHA512

02a9d9bf1e5ee0cad3925546d31908e4355fecb78bc9c2531b9200aee95eb0e297d79cc0fdf96c665b73047dd8155eeb35412221881abbc56cd705c544663910

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

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/1220-115-0x0000000074260000-0x000000007428E000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 424 wrote to memory of 1220	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 1220	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 1220	424	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85a47a4c39cd4645b8311c447875da01bc4afea1d326b0e82d32a7a69b3a4d74.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:424

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85a47a4c39cd4645b8311c447875da01bc4afea1d326b0e82d32a7a69b3a4d74.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1220

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/1220-114-0x0000000000000000-mapping.dmp

Download
memory/1220-115-0x0000000074260000-0x000000007428E000-memory.dmp

Filesize
184KB

Download
memory/1220-117-0x0000000000E10000-0x0000000000E16000-memory.dmp

Filesize
24KB

Download