dridex | 3fcc214e139a7788550cb6104b0260259da075bbb645dda7fa170e8b383095c9

Analysis

max time kernel
31s
max time network
8s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:18

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General

Target

3fcc214e139a7788550cb6104b0260259da075bbb645dda7fa170e8b383095c9.dll
Size

157KB
MD5

135148ddb63b2e5b901db2ad54e9ad1a
SHA1

947e65bc64c305de071ac4b22d9dc51761023154
SHA256

3fcc214e139a7788550cb6104b0260259da075bbb645dda7fa170e8b383095c9
SHA512

d7a78bc5909288133509132dc808241d35e5a63cac7f3728ce2d2d6afa8f9d334d356299ddc18b8a517ce71be1e5adc79eb88e7dd5cb8ed28ef44050cc710096

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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/2036-62-0x0000000074BE0000-0x0000000074C0D000-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 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2036	1824	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3fcc214e139a7788550cb6104b0260259da075bbb645dda7fa170e8b383095c9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3fcc214e139a7788550cb6104b0260259da075bbb645dda7fa170e8b383095c9.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:2036

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/2036-60-0x0000000000000000-mapping.dmp

Download
memory/2036-61-0x0000000075D51000-0x0000000075D53000-memory.dmp

Filesize
8KB

Download
memory/2036-62-0x0000000074BE0000-0x0000000074C0D000-memory.dmp

Filesize
180KB

Download
memory/2036-64-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download