dridex | ff3a35ebb7a529054539464c438c1ac920647e55dac7e8f853cf33c2bfc6da7b

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7v20201028
submitted
18/02/2021, 11:57

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General

Target
ff3a35ebb7a529054539464c438c1ac920647e55dac7e8f853cf33c2bfc6da7b.dll
Size 784KB
Sample210218-v2affyef2e
SHA256 ff3a35ebb7a529054539464c438c1ac920647e55dac7e8f853cf33c2bfc6da7b
MD5 be536247ecfde74a90f9f41ed376736d
SHA1 e3c0195fcbce731754ad07f1180a80779d9a0b35
SHA512 e753ddd34acc8628a81f4b855b2828f8f235166ca211597727220085ad0889f8df60774e2fad295c86228f5207b862d72eec1ee0b2f6f2a3e0ec5c45894de68c
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

209.20.87.138:443
198.1.115.153:8172
151.236.29.248:6516

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
behavioral1/memory/1316-4-0x00000000745B0000-0x00000000745ED000-memory.dmp	dridex_ldr
behavioral1/memory/1316-5-0x00000000745B0000-0x00000000745ED000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1316	rundll32.exe
7	1316	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 7 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24
PID 2004 wrote to memory of 1316	2004	rundll32.exe	24

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff3a35ebb7a529054539464c438c1ac920647e55dac7e8f853cf33c2bfc6da7b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff3a35ebb7a529054539464c438c1ac920647e55dac7e8f853cf33c2bfc6da7b.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1316

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/596-7-0x000007FEF7020000-0x000007FEF729A000-memory.dmp

Download

memory/1316-3-0x0000000075EA1000-0x0000000075EA3000-memory.dmp

Download

memory/1316-4-0x00000000745B0000-0x00000000745ED000-memory.dmp

Download

memory/1316-5-0x00000000745B0000-0x00000000745ED000-memory.dmp

Download

memory/1316-6-0x0000000000170000-0x0000000000171000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads