dridex | cbbd4f026c0280fa843e1c9fe426a421ef1fa667adeccadd9ca8604e3526ca65

General

Target

cbbd4f026c0280fa843e1c9fe426a421ef1fa667adeccadd9ca8604e3526ca65.dll
Size

196KB
MD5

91f6e0e4ddbf7f27c924a0ce08dda37c
SHA1

f470262eca32d4bc9c1989f1bdf2db4912375134
SHA256

cbbd4f026c0280fa843e1c9fe426a421ef1fa667adeccadd9ca8604e3526ca65
SHA512

a0dc8a5bb52f6b48f113704ad65923993a1416b5ef5387fd1a20c4f416b88d65a182d21512b598ac7c8e2a02ac1ee6d3938f7a24eb994e2ba67c79ceeb9eaecd

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/740-4-0x00000000752E0000-0x0000000075313000-memory.dmp	dridex_ldr
behavioral1/memory/740-6-0x00000000752E0000-0x00000000752FF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 740 rundll32.exe
6 740 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	740	rundll32.exe
6	740	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 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 740	1724	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cbbd4f026c0280fa843e1c9fe426a421ef1fa667adeccadd9ca8604e3526ca65.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cbbd4f026c0280fa843e1c9fe426a421ef1fa667adeccadd9ca8604e3526ca65.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:740

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/740-2-0x0000000000000000-mapping.dmp

Download
memory/740-3-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/740-4-0x00000000752E0000-0x0000000075313000-memory.dmp

Filesize
204KB

Download
memory/740-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/740-6-0x00000000752E0000-0x00000000752FF000-memory.dmp

Filesize
124KB

Download
memory/1356-7-0x000007FEF7D90000-0x000007FEF800A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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