dridex | 55ba4fd13d72f62d19c69be0026b3d62882f067611c6fdf609b0fa723c8cb1ed

Analysis

max time kernel
138s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:09

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General

Target
55ba4fd13d72f62d19c69be0026b3d62882f067611c6fdf609b0fa723c8cb1ed.dll
Size 188KB
Sample210224-a76w184792
SHA256 55ba4fd13d72f62d19c69be0026b3d62882f067611c6fdf609b0fa723c8cb1ed
MD5 c48e8c8d2a588c9dac2b2cae7e46f344
SHA1 3abe177acbd476f059036c41ce98e37fff7451e8
SHA512 41701d540cc77cc0a71626ebc2a4348526c7786eb8c87ea8ff24f899d5858db01d120ff98e777d7c171fdc52b4ab00e1e138ef6e496796efdcc79268cfda5abe
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/3316-3-0x00000000741B0000-0x00000000741E1000-memory.dmp	dridex_ldr
behavioral2/memory/3316-5-0x00000000741B0000-0x00000000741CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	3316	rundll32.exe
18	3316	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 3316	508	rundll32.exe	69
PID 508 wrote to memory of 3316	508	rundll32.exe	69
PID 508 wrote to memory of 3316	508	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55ba4fd13d72f62d19c69be0026b3d62882f067611c6fdf609b0fa723c8cb1ed.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\55ba4fd13d72f62d19c69be0026b3d62882f067611c6fdf609b0fa723c8cb1ed.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:3316

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/3316-3-0x00000000741B0000-0x00000000741E1000-memory.dmp

Download

memory/3316-4-0x0000000003410000-0x0000000003416000-memory.dmp

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memory/3316-5-0x00000000741B0000-0x00000000741CF000-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