dridex | 3df393d5e44c247d97110d61fe65dfc17eb522f81339edc0d9dbf15d0f144ccd

Analysis

max time kernel
76s
max time network
138s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 00:35

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General

Target

3df393d5e44c247d97110d61fe65dfc17eb522f81339edc0d9dbf15d0f144ccd.dll
Size

196KB
MD5

221ab16536a63db4cdcd19f78ec0b8b9
SHA1

ac300209c6e0ea97d048436ea4d94199d5023fd4
SHA256

3df393d5e44c247d97110d61fe65dfc17eb522f81339edc0d9dbf15d0f144ccd
SHA512

f19617098d145713c73e5ab25c81330d3d2166a0cabd4643babd52c12f8639e07e87fae95a75b2989f62860846287fb83a823d36aa5eac55055d3693590fb0c0

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/64-3-0x0000000074340000-0x0000000074373000-memory.dmp	dridex_ldr
behavioral2/memory/64-5-0x0000000074340000-0x000000007435F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 64 rundll32.exe
18 64 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
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

flow	pid	process
16	64	rundll32.exe
18	64	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 740 wrote to memory of 64	740	rundll32.exe	rundll32.exe
PID 740 wrote to memory of 64	740	rundll32.exe	rundll32.exe
PID 740 wrote to memory of 64	740	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3df393d5e44c247d97110d61fe65dfc17eb522f81339edc0d9dbf15d0f144ccd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3df393d5e44c247d97110d61fe65dfc17eb522f81339edc0d9dbf15d0f144ccd.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:64

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/64-2-0x0000000000000000-mapping.dmp

Download
memory/64-3-0x0000000074340000-0x0000000074373000-memory.dmp

Filesize
204KB

Download
memory/64-4-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/64-5-0x0000000074340000-0x000000007435F000-memory.dmp

Filesize
124KB

Download