dridex | b5783c60ed59501cbd39e605097537253c5a51e53e74811621fe6421891a79de

Analysis

max time kernel
19s
max time network
122s
platform
windows10_x64
resource
win10v20210410
submitted
11-06-2021 03:13

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General

Target

b5783c60ed59501cbd39e605097537253c5a51e53e74811621fe6421891a79de.dll
Size

162KB
MD5

2dc2e943a9fc7786014fa96acf954284
SHA1

9c381532d3ce4fa7b3c6f6e0d00370a3baab7586
SHA256

b5783c60ed59501cbd39e605097537253c5a51e53e74811621fe6421891a79de
SHA512

f2a3c97702a559f62b61c3f491c79737c99b1c7dc32e6c8c7242e8dea77382a24e866018e818b18e1b11c43ef0ad6c4a0dd6d6bbafd50b72c3a8542b612fc567

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/3692-115-0x00000000736D0000-0x00000000736FE000-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 1892 wrote to memory of 3692	1892	rundll32.exe	rundll32.exe
PID 1892 wrote to memory of 3692	1892	rundll32.exe	rundll32.exe
PID 1892 wrote to memory of 3692	1892	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5783c60ed59501cbd39e605097537253c5a51e53e74811621fe6421891a79de.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5783c60ed59501cbd39e605097537253c5a51e53e74811621fe6421891a79de.dll,#1
2⤵
- Checks whether UAC is enabled
PID:3692

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/3692-114-0x0000000000000000-mapping.dmp

Download
memory/3692-115-0x00000000736D0000-0x00000000736FE000-memory.dmp

Filesize
184KB

Download
memory/3692-117-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download