dridex | 79a3a7441a371606291f8bd47216a503b27a38ec61ba7604c9ba2597a54cc3d8

Analysis

max time kernel
83s
max time network
152s
platform
windows10_x64
resource
win10v20201028
submitted
10/11/2020, 06:15

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General

Target
n9r9p1r1atxt.dll
Size 518KB
Sample201110-b4e5vtwnx2
SHA256 79a3a7441a371606291f8bd47216a503b27a38ec61ba7604c9ba2597a54cc3d8
MD5 831c361b1f54a876c98fb6bf3cd5d688
SHA1 7a891d8553c874a3803df6a6a6436860e5d0de41
SHA512 d3e7d49e46ce0aa0d0675471b73ef2f2a5a2772fc57584db24d75259c4e5545a89c4b8506700e552aaf3727673353e9e035924c8beac61462616020097fb9ce1
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

94.126.8.2:443
37.187.161.206:33443
209.59.199.129:4443
157.245.130.146:3786

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

resource	yara_rule
behavioral2/memory/3544-1-0x0000000074200000-0x000000007423D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
21	3544	rundll32.exe
23	3544	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 3544	4068	rundll32.exe	71
PID 4068 wrote to memory of 3544	4068	rundll32.exe	71
PID 4068 wrote to memory of 3544	4068	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\n9r9p1r1atxt.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\n9r9p1r1atxt.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:3544

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/3544-1-0x0000000074200000-0x000000007423D000-memory.dmp

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