dridex | bb521860bf54ea3ba9a6eab8fa87ea21d4c91805940b7cbc08205a89ca2f5404

Analysis

max time kernel
117s
max time network
146s
platform
windows10_x64
resource
win10v20201028
submitted
01/04/2021, 02:19

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General

Target
bb521860bf54ea3ba9a6eab8fa87ea21d4c91805940b7cbc08205a89ca2f5404.dll
Size 380KB
Sample210401-qrx7f7e4bn
SHA256 bb521860bf54ea3ba9a6eab8fa87ea21d4c91805940b7cbc08205a89ca2f5404
MD5 e49b6f3489b4071ebe85f3e8a95cd304
SHA1 06733669c34a87b6ec15724df59ab2b01b5f547c
SHA512 9df13b2e7b0f1ccf383ad1ee5ef3e19ce09b77dd5d8869eadbadab457c83bd845d0008647052a8f678b55fbf80af025e3c90b5309d8dc3d15853b730074ece16
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

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/852-3-0x0000000074350000-0x000000007438D000-memory.dmp	dridex_ldr
behavioral2/memory/852-4-0x0000000074350000-0x000000007438D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	852	rundll32.exe
17	852	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 508 wrote to memory of 852	508	rundll32.exe	68
PID 508 wrote to memory of 852	508	rundll32.exe	68
PID 508 wrote to memory of 852	508	rundll32.exe	68

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb521860bf54ea3ba9a6eab8fa87ea21d4c91805940b7cbc08205a89ca2f5404.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb521860bf54ea3ba9a6eab8fa87ea21d4c91805940b7cbc08205a89ca2f5404.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:852

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/852-3-0x0000000074350000-0x000000007438D000-memory.dmp

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memory/852-4-0x0000000074350000-0x000000007438D000-memory.dmp

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memory/852-5-0x00000000007F0000-0x00000000007F1000-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