dridex | b74c1049833a0a7f1314752cfc959a0bfd9138fdc6d58010c6b7db851b5f4017

General

Target

b74c1049833a0a7f1314752cfc959a0bfd9138fdc6d58010c6b7db851b5f4017.dll
Size

188KB
MD5

94cd251f6c46eaad701e718d108dd87e
SHA1

d739ce9a88f08877ef700374eb69e0790888a913
SHA256

b74c1049833a0a7f1314752cfc959a0bfd9138fdc6d58010c6b7db851b5f4017
SHA512

6353b6a825bbb19cce104a324a887decdee555891dd5fdc917d177ca139e1902296442eee16f9dd3ba99bfa6eab78baa5e2d10f76b0a07e7fc7993171e8c7d8a

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

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

Processes:

resource	yara_rule
behavioral1/memory/1408-5-0x0000000074990000-0x00000000749C1000-memory.dmp	dridex_ldr
behavioral1/memory/1408-7-0x0000000074990000-0x00000000749AF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1408 rundll32.exe
8 1408 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

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
6	1408	rundll32.exe
8	1408	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe
PID 1864 wrote to memory of 1408	1864	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b74c1049833a0a7f1314752cfc959a0bfd9138fdc6d58010c6b7db851b5f4017.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b74c1049833a0a7f1314752cfc959a0bfd9138fdc6d58010c6b7db851b5f4017.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/760-8-0x000007FEF7810000-0x000007FEF7A8A000-memory.dmp

Filesize
2.5MB

Download
memory/1408-2-0x0000000000000000-mapping.dmp

Download
memory/1408-3-0x00000000760B1000-0x00000000760B3000-memory.dmp

Filesize
8KB

Download
memory/1408-4-0x0000000074620000-0x00000000747C3000-memory.dmp

Filesize
1.6MB

Download
memory/1408-5-0x0000000074990000-0x00000000749C1000-memory.dmp

Filesize
196KB

Download
memory/1408-6-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/1408-7-0x0000000074990000-0x00000000749AF000-memory.dmp

Filesize
124KB

Download

Analysis

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