dridex | 5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea

Analysis

max time kernel
21s
max time network
131s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 21:04

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General

Target

5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll
Size

196KB
MD5

65b1f8596a530c3c491846e7d6a75aad
SHA1

823db245fd9d6599269dc0d8be73a6e3a6e1754c
SHA256

5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea
SHA512

19270b5c28b55a33f0a24f762dc66ca5cd8e3dc0cc2e8a14e76c14956fdcafed589ddf2f69cf0cc1e5a106f716f428a22487a77a6e5b4ec534db4cfe0accfdf6

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/4808-3-0x0000000073D90000-0x0000000073DC3000-memory.dmp	dridex_ldr
behavioral2/memory/4808-5-0x0000000073D90000-0x0000000073DAF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 4808 rundll32.exe
17 4808 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
15	4808	rundll32.exe
17	4808	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 4764 wrote to memory of 4808	4764	rundll32.exe	rundll32.exe
PID 4764 wrote to memory of 4808	4764	rundll32.exe	rundll32.exe
PID 4764 wrote to memory of 4808	4764	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4808

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/4808-2-0x0000000000000000-mapping.dmp

Download
memory/4808-3-0x0000000073D90000-0x0000000073DC3000-memory.dmp

Filesize
204KB

Download
memory/4808-4-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

Download
memory/4808-5-0x0000000073D90000-0x0000000073DAF000-memory.dmp

Filesize
124KB

Download