dridex | 3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7

General

Target

3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll
Size

184KB
MD5

f0180529d88cb26085eb68b6c7229061
SHA1

e988faf614fb5ab7c8e06d7bca523bb39cdc496f
SHA256

3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7
SHA512

c71033c82e679467a1718323fcfdaf4ad0b32fbde097f837b4b9e5d809f840c2f49e0c7dbaaa8a2887dcfdca875d7e09aaa88c7c340a3d522943c13412604b1b

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

162.13.114.59:443

70.39.99.196:8172

37.187.115.122:6601

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/1656-4-0x0000000074940000-0x0000000074970000-memory.dmp	dridex_ldr
behavioral1/memory/1656-6-0x0000000074940000-0x000000007495F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1656 rundll32.exe
8 1656 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
5	1656	rundll32.exe
8	1656	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 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 1656	1152	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1656

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/1556-7-0x000007FEF72E0000-0x000007FEF755A000-memory.dmp

Filesize
2.5MB

Download
memory/1656-2-0x0000000000000000-mapping.dmp

Download
memory/1656-3-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1656-4-0x0000000074940000-0x0000000074970000-memory.dmp

Filesize
192KB

Download
memory/1656-5-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/1656-6-0x0000000074940000-0x000000007495F000-memory.dmp

Filesize
124KB

Download

Analysis

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