dridex | 591e17e0900da6fc4e950ebe260521490c43df79d2df6b3b9363199e75c34b9c

Analysis

max time kernel
120s
max time network
122s
platform
windows10_x64
resource
win10v20210408
submitted
16/04/2021, 07:33

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General

Target
591e17e0900da6fc4e950ebe260521490c43df79d2df6b3b9363199e75c34b9c.dll
Size 162KB
Sample210416-vybeymspwx
SHA256 591e17e0900da6fc4e950ebe260521490c43df79d2df6b3b9363199e75c34b9c
MD5 3a346e917c5042e563fca33a370e63e4
SHA1 734c3c19eb2efc89aadc8bd850179f851dbc7d83
SHA512 435fc0426ed4b387d018f00859ddb0f70c6a132424012b26789d37395ef0cbda95d31c48dc630d38ab6d83b132081e174dba965ec2f3eb62864f82a8f6c463e9
MD5 SHA1 SHA512

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

resource	yara_rule
behavioral2/memory/1000-115-0x0000000074310000-0x000000007433E000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 1000	644	rundll32.exe	69
PID 644 wrote to memory of 1000	644	rundll32.exe	69
PID 644 wrote to memory of 1000	644	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\591e17e0900da6fc4e950ebe260521490c43df79d2df6b3b9363199e75c34b9c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\591e17e0900da6fc4e950ebe260521490c43df79d2df6b3b9363199e75c34b9c.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1000-115-0x0000000074310000-0x000000007433E000-memory.dmp

Download

memory/1000-117-0x0000000000520000-0x0000000000526000-memory.dmp