dridex | 7bdb42a3c2debe784760d182bceb450f01cf2c30438fd8df8b36cd9991336351

General

Target

7bdb42a3c2debe784760d182bceb450f01cf2c30438fd8df8b36cd9991336351.dll
Size

188KB
MD5

aecde72e79b5a23106c82965b839fe5b
SHA1

947badc99105ddde0b84e6b83fd928f54b46ec54
SHA256

7bdb42a3c2debe784760d182bceb450f01cf2c30438fd8df8b36cd9991336351
SHA512

febb7d55f21d29428cda4ec27cfb3c696492e2b1641dd4090b08622eacf06345f3af0f6d9f44ca0775e66a98f58a75fb1a1f66c7da9cb182f5b20474675624cb

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/1228-5-0x0000000074EF0000-0x0000000074F21000-memory.dmp	dridex_ldr
behavioral1/memory/1228-7-0x0000000074EF0000-0x0000000074F0F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1228 rundll32.exe
7 1228 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	1228	rundll32.exe
7	1228	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 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1228	2044	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bdb42a3c2debe784760d182bceb450f01cf2c30438fd8df8b36cd9991336351.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bdb42a3c2debe784760d182bceb450f01cf2c30438fd8df8b36cd9991336351.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1228

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/1228-2-0x0000000000000000-mapping.dmp

Download
memory/1228-3-0x0000000075251000-0x0000000075253000-memory.dmp

Filesize
8KB

Download
memory/1228-4-0x0000000074B80000-0x0000000074D23000-memory.dmp

Filesize
1.6MB

Download
memory/1228-5-0x0000000074EF0000-0x0000000074F21000-memory.dmp

Filesize
196KB

Download
memory/1228-6-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1228-7-0x0000000074EF0000-0x0000000074F0F000-memory.dmp

Filesize
124KB

Download
memory/1656-8-0x000007FEF6510000-0x000007FEF678A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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