dridex | d08e991f888aa61b77e519e193cc4a3d602ab1e77ab18c4a8b2d34b9aa5360f6

Analysis

max time kernel
29s
max time network
114s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:32

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General

Target
d08e991f888aa61b77e519e193cc4a3d602ab1e77ab18c4a8b2d34b9aa5360f6.dll
Size 188KB
Sample210224-al1eb3ym16
SHA256 d08e991f888aa61b77e519e193cc4a3d602ab1e77ab18c4a8b2d34b9aa5360f6
MD5 84d594e89364092135f90494aca47fdc
SHA1 46bbb7eebf29e4b1257ae7ed7b6d2a145800bf81
SHA512 a8a349ec2e028495e678cb03b8be3ec63f19762f899b418db796af5ee69c43f2a86359b2c09f7794cd27f996f5aeb7f012d98ce6f810db9e15b7405d43f13ccf
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/3732-3-0x0000000074100000-0x0000000074131000-memory.dmp	dridex_ldr
behavioral2/memory/3732-5-0x0000000074100000-0x000000007411F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	3732	rundll32.exe
18	3732	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 4012 wrote to memory of 3732	4012	rundll32.exe	68
PID 4012 wrote to memory of 3732	4012	rundll32.exe	68
PID 4012 wrote to memory of 3732	4012	rundll32.exe	68

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d08e991f888aa61b77e519e193cc4a3d602ab1e77ab18c4a8b2d34b9aa5360f6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d08e991f888aa61b77e519e193cc4a3d602ab1e77ab18c4a8b2d34b9aa5360f6.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:3732

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/3732-3-0x0000000074100000-0x0000000074131000-memory.dmp

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memory/3732-4-0x0000000001060000-0x0000000001066000-memory.dmp

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memory/3732-5-0x0000000074100000-0x000000007411F000-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