dridex | 1998fbcd52a2a6d435fa911cfbea54977c3571a3c1bf7366dafa56f46a58b19d

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7v20201028
submitted
07/02/2021, 07:54

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General

Target
53316b6c18d541c80b56e7373445c261.dll
Size 248KB
Sample210207-ea3v4dg13e
SHA256 1998fbcd52a2a6d435fa911cfbea54977c3571a3c1bf7366dafa56f46a58b19d
MD5 53316b6c18d541c80b56e7373445c261
SHA1 1cc736149aca8579782ec4ce6dc07b03cd4d4594
SHA512 c550b69d13698dccffc4cf4e0d483cf5c6337b2d17e5266b67bd86c0ea7b83230bea0f8501dc7f2b51a30d6c6b6b28f4775fcbf8eb3f6496938e5956d5413598
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

77.220.64.133:443
62.14.242.133:8443
192.241.175.242:691
212.129.24.85:34443

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
behavioral1/memory/1976-4-0x0000000074A10000-0x0000000074A50000-memory.dmp	dridex_ldr
behavioral1/memory/1976-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	1976	rundll32.exe
8	1976	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 7 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\53316b6c18d541c80b56e7373445c261.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\53316b6c18d541c80b56e7373445c261.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1976

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/568-7-0x000007FEF7540000-0x000007FEF77BA000-memory.dmp

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memory/1976-3-0x0000000075781000-0x0000000075783000-memory.dmp

Download

memory/1976-4-0x0000000074A10000-0x0000000074A50000-memory.dmp

Download

memory/1976-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Download

memory/1976-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads