dridex | 788e4a087319f72afc26eb808d48219ab1419bb4c6fbbfbc85fcbaf19bf4e3a3

Analysis

max time kernel
26s
max time network
138s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:07

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General

Target
788e4a087319f72afc26eb808d48219ab1419bb4c6fbbfbc85fcbaf19bf4e3a3.dll
Size 188KB
Sample210224-efv8zrtq7x
SHA256 788e4a087319f72afc26eb808d48219ab1419bb4c6fbbfbc85fcbaf19bf4e3a3
MD5 04a6ab77904819ee23560de79a1eb3b0
SHA1 4750b54c1b673d227a2d05fcfc543168ec9df48a
SHA512 ed2167e8eb00e5136876a1177ed4441ba52478e0841215e43c7d2aa50c09ceaabce65bbd50729b7b040efba0cfcb56766777f650c5770a3cd6d34deda7a4fbc8
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/4804-3-0x00000000737D0000-0x0000000073801000-memory.dmp	dridex_ldr
behavioral2/memory/4804-5-0x00000000737D0000-0x00000000737EF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	4804	rundll32.exe
18	4804	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 4780 wrote to memory of 4804	4780	rundll32.exe	69
PID 4780 wrote to memory of 4804	4780	rundll32.exe	69
PID 4780 wrote to memory of 4804	4780	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\788e4a087319f72afc26eb808d48219ab1419bb4c6fbbfbc85fcbaf19bf4e3a3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\788e4a087319f72afc26eb808d48219ab1419bb4c6fbbfbc85fcbaf19bf4e3a3.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4804

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/4804-3-0x00000000737D0000-0x0000000073801000-memory.dmp

Download

memory/4804-4-0x00000000027F0000-0x00000000027F6000-memory.dmp

Download

memory/4804-5-0x00000000737D0000-0x00000000737EF000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads