dridex | 3dc0104a5fe1244ca91c751776301d7c8cffc188dee5dbc1894965e5032bf941

Analysis

max time kernel
29s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:35

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General

Target
3dc0104a5fe1244ca91c751776301d7c8cffc188dee5dbc1894965e5032bf941.dll
Size 188KB
Sample210224-88mlhs219s
SHA256 3dc0104a5fe1244ca91c751776301d7c8cffc188dee5dbc1894965e5032bf941
MD5 2eaddd6341bd26ef0a304f4297aac7c8
SHA1 414260ec6dfbe6a3637c9b11609d52e55b1b6f00
SHA512 b2f4f19e65967ba24e8b49b2fa16b75c0b974377d49889dbaf9d630fc8dc2ce87b84ad632fb010983945bea1411199c05dd2e36804fb261f3591335a58cd6f38
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/4776-3-0x0000000074400000-0x0000000074431000-memory.dmp	dridex_ldr
behavioral2/memory/4776-5-0x0000000074400000-0x000000007441F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
20	4776	rundll32.exe
22	4776	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 4712 wrote to memory of 4776	4712	rundll32.exe	30
PID 4712 wrote to memory of 4776	4712	rundll32.exe	30
PID 4712 wrote to memory of 4776	4712	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3dc0104a5fe1244ca91c751776301d7c8cffc188dee5dbc1894965e5032bf941.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3dc0104a5fe1244ca91c751776301d7c8cffc188dee5dbc1894965e5032bf941.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4776

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/4776-3-0x0000000074400000-0x0000000074431000-memory.dmp

Download

memory/4776-4-0x0000000002BE0000-0x0000000002BE6000-memory.dmp

Download

memory/4776-5-0x0000000074400000-0x000000007441F000-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