dridex | 331d55def39d58b50770bb647db0b98ae3d049a11626c7a76e0008ad84fba620

Analysis

max time kernel
86s
max time network
152s
platform
windows10_x64
resource
win10-en-20210920
submitted
14-10-2021 07:04

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General

Target

331d55def39d58b50770bb647db0b98ae3d049a11626c7a76e0008ad84fba620.dll
Size

608KB
MD5

b8b4376c19a5cb6a2fe069441249bcf8
SHA1

5b7cbfb91c54484f7af73dd26c16501545086935
SHA256

331d55def39d58b50770bb647db0b98ae3d049a11626c7a76e0008ad84fba620
SHA512

0ecaa1375328cefe3f7b90d903005227cb67ad7a0a41959c5f55f1d5149caf9ad62efe59ea50b8310d342caa251e5e44fdca0196e9988213c949bf4d8e093bcc

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

27 2796 rundll32.exe
28 2796 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
27	2796	rundll32.exe
28	2796	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1892 wrote to memory of 2796	1892	rundll32.exe	rundll32.exe
PID 1892 wrote to memory of 2796	1892	rundll32.exe	rundll32.exe
PID 1892 wrote to memory of 2796	1892	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\331d55def39d58b50770bb647db0b98ae3d049a11626c7a76e0008ad84fba620.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\331d55def39d58b50770bb647db0b98ae3d049a11626c7a76e0008ad84fba620.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2796

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2796-115-0x0000000000000000-mapping.dmp

Download
memory/2796-116-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/2796-117-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2796-118-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/2796-120-0x0000000003280000-0x0000000003281000-memory.dmp

Filesize
4KB

Download
memory/2796-121-0x0000000003280000-0x0000000003281000-memory.dmp

Filesize
4KB

Download
memory/2796-122-0x0000000003280000-0x0000000003281000-memory.dmp

Filesize
4KB

Download
memory/2796-1024-0x0000000002FF0000-0x0000000002FF1000-memory.dmp

Filesize
4KB

Download