dridex | afca032a08aa9eea3a5f1f88fd6b598cc5242d68279ba9257c3bc08494400f02

General

Target

afca032a08aa9eea3a5f1f88fd6b598cc5242d68279ba9257c3bc08494400f02.dll
Size

196KB
MD5

57e910e74454ad625ab7b12954572263
SHA1

a578408c2414f5c8018cf26d083a790834c05260
SHA256

afca032a08aa9eea3a5f1f88fd6b598cc5242d68279ba9257c3bc08494400f02
SHA512

47b0924e585a5fdec511d2aa3b0363f8538ea286ace550191fb036531334ff89d12e70467bb774d83aa76f613c6b7bc57e320745f27641fd68dc5efe6079017d

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/1384-4-0x0000000074B70000-0x0000000074BA3000-memory.dmp	dridex_ldr
behavioral1/memory/1384-6-0x0000000074B70000-0x0000000074B8F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

4 1384 rundll32.exe
6 1384 rundll32.exe
8 1384 rundll32.exe
9 1384 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
4	1384	rundll32.exe
6	1384	rundll32.exe
8	1384	rundll32.exe
9	1384	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 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1384	1908	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\afca032a08aa9eea3a5f1f88fd6b598cc5242d68279ba9257c3bc08494400f02.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\afca032a08aa9eea3a5f1f88fd6b598cc5242d68279ba9257c3bc08494400f02.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/548-7-0x000007FEF6270000-0x000007FEF64EA000-memory.dmp

Filesize
2.5MB

Download
memory/1384-2-0x0000000000000000-mapping.dmp

Download
memory/1384-3-0x0000000076271000-0x0000000076273000-memory.dmp

Filesize
8KB

Download
memory/1384-4-0x0000000074B70000-0x0000000074BA3000-memory.dmp

Filesize
204KB

Download
memory/1384-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1384-6-0x0000000074B70000-0x0000000074B8F000-memory.dmp

Filesize
124KB

Download

Analysis

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