dridex | 7a77b516c563c8bbe904af3b90cfb89148b879b807aa34d93be3b1a2eb93a016

Analysis

max time kernel
38s
max time network
48s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 05:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fn58ds.dll
Size

725KB
MD5

aa7ad8fdea021577637b6e0520046686
SHA1

f847d66c48d910ec01127d5e188ceaf4919d418f
SHA256

7a77b516c563c8bbe904af3b90cfb89148b879b807aa34d93be3b1a2eb93a016
SHA512

cd0744f471cbf9fa880ed16dc6d56a55a683f8d85fd5988f6532280c054200a8d83304a4e43d9801325925b81d4532d1cd25a5ec8c476159dc1c53049b9d5e9f

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.164.126.197:443

69.16.193.166:9443

193.90.12.122:3098

157.245.103.132:14043

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 'dmod' strings 2 IoCs

Detects 'dmod' strings in Dridex loader.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1724-57-0x0000000000330000-0x000000000036A000-memory.dmp	dridex_ldr_dmod
behavioral1/memory/1724-58-0x0000000000330000-0x000000000036A000-memory.dmp	dridex_ldr_dmod

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

2 1724 rundll32.exe
4 1724 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
2	1724	rundll32.exe
4	1724	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 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe
PID 1464 wrote to memory of 1724	1464	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fn58ds.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fn58ds.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1724-54-0x0000000000000000-mapping.dmp

Download
memory/1724-55-0x0000000075381000-0x0000000075383000-memory.dmp

Filesize
8KB

Download
memory/1724-56-0x00000000001A0000-0x00000000001EB000-memory.dmp

Filesize
300KB

Download
memory/1724-57-0x0000000000330000-0x000000000036A000-memory.dmp

Filesize
232KB

Download
memory/1724-58-0x0000000000330000-0x000000000036A000-memory.dmp

Filesize
232KB

Download