dridex | 12e5f7b49a5065f5b234e202829efeee308314ebd7f22ad2815126398619d3ad

Analysis

max time kernel
147s
max time network
150s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:05

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General

Target

12e5f7b49a5065f5b234e202829efeee308314ebd7f22ad2815126398619d3ad.dll
Size

188KB
MD5

9072fda9208770973fcd357de3fb30ab
SHA1

d221aa2a2b90c9cf8f62792c6092d5e5fd04442b
SHA256

12e5f7b49a5065f5b234e202829efeee308314ebd7f22ad2815126398619d3ad
SHA512

3905afe1f07f55219e9b06fdb3d024d345894a3fe3cde35acd232a0b2768ed64ccfa8f84890a99ebce0913dc5395ac589a45c9bd810b2bc6b43ced369c32e1a1

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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/3580-3-0x00000000737C0000-0x00000000737F1000-memory.dmp	dridex_ldr
behavioral2/memory/3580-5-0x00000000737C0000-0x00000000737DF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 3580 rundll32.exe
18 3580 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	3580	rundll32.exe
18	3580	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 496 wrote to memory of 3580	496	rundll32.exe	rundll32.exe
PID 496 wrote to memory of 3580	496	rundll32.exe	rundll32.exe
PID 496 wrote to memory of 3580	496	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\12e5f7b49a5065f5b234e202829efeee308314ebd7f22ad2815126398619d3ad.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:496
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\12e5f7b49a5065f5b234e202829efeee308314ebd7f22ad2815126398619d3ad.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:3580

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/3580-2-0x0000000000000000-mapping.dmp

Download
memory/3580-3-0x00000000737C0000-0x00000000737F1000-memory.dmp

Filesize
196KB

Download
memory/3580-4-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

Filesize
24KB

Download
memory/3580-5-0x00000000737C0000-0x00000000737DF000-memory.dmp

Filesize
124KB

Download