dridex | 85042310acfeb0835297c91d3c936da40850ceecd02b4eaa8a6539814e6fe9ea

Analysis

max time kernel
34s
max time network
110s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:35

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General

Target
85042310acfeb0835297c91d3c936da40850ceecd02b4eaa8a6539814e6fe9ea.dll
Size 188KB
Sample210224-getgwjsrgx
SHA256 85042310acfeb0835297c91d3c936da40850ceecd02b4eaa8a6539814e6fe9ea
MD5 252b94e490d074995463a30134cf8500
SHA1 1eb31c228d53a40d1bd7c60096fccf8489e3ef28
SHA512 a137abd57c1ad8f926560f87c2cc57cf4334c6c88e028a0b23065fe27317fbd83985076d8f0cd6b7390b656489fc891853995bc6098685e8ff7ee31761018897
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/1228-3-0x00000000744D0000-0x0000000074501000-memory.dmp	dridex_ldr
behavioral2/memory/1228-5-0x00000000744D0000-0x00000000744EF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
21	1228	rundll32.exe
23	1228	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 812 wrote to memory of 1228	812	rundll32.exe	70
PID 812 wrote to memory of 1228	812	rundll32.exe	70
PID 812 wrote to memory of 1228	812	rundll32.exe	70

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\85042310acfeb0835297c91d3c936da40850ceecd02b4eaa8a6539814e6fe9ea.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\85042310acfeb0835297c91d3c936da40850ceecd02b4eaa8a6539814e6fe9ea.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1228

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/1228-3-0x00000000744D0000-0x0000000074501000-memory.dmp

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memory/1228-4-0x0000000004280000-0x0000000004286000-memory.dmp

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memory/1228-5-0x00000000744D0000-0x00000000744EF000-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