dridex | b62c2c3d6df852d86a4cfb57c97b7b9ccc81bbc266f0a0e979cb0b51856b60de

Analysis

max time kernel
24s
max time network
133s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:31

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General

Target
b62c2c3d6df852d86a4cfb57c97b7b9ccc81bbc266f0a0e979cb0b51856b60de.dll
Size 188KB
Sample210224-wyah8eb63e
SHA256 b62c2c3d6df852d86a4cfb57c97b7b9ccc81bbc266f0a0e979cb0b51856b60de
MD5 a0c6e2ff82b990619b986ef71604125a
SHA1 bd3daab1e762ecff75e10cd1501c75a4173a9539
SHA512 fef8b1b0faeba5a3f1014be19492a056f815df83e4d9018d756d7bf6f69b75e81ead2353966aab0ae468f10cef79281ca9240cd93d7c14b85eecf60a10ed9fea
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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

resource	yara_rule
behavioral2/memory/1336-3-0x0000000073EF0000-0x0000000073F21000-memory.dmp	dridex_ldr
behavioral2/memory/1336-5-0x0000000073EF0000-0x0000000073F0F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	1336	rundll32.exe
18	1336	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 1180 wrote to memory of 1336	1180	rundll32.exe	69
PID 1180 wrote to memory of 1336	1180	rundll32.exe	69
PID 1180 wrote to memory of 1336	1180	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b62c2c3d6df852d86a4cfb57c97b7b9ccc81bbc266f0a0e979cb0b51856b60de.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b62c2c3d6df852d86a4cfb57c97b7b9ccc81bbc266f0a0e979cb0b51856b60de.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1336

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

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Downloads

memory/1336-3-0x0000000073EF0000-0x0000000073F21000-memory.dmp

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memory/1336-4-0x0000000002970000-0x0000000002976000-memory.dmp

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memory/1336-5-0x0000000073EF0000-0x0000000073F0F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads