dridex | 8a47bb3a1987425ac99f81c7a307a30a22f6200782dec8b3cbf2ce825d322c39

Analysis

max time kernel
140s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2023 16:13

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General

Target

e3e9f5f3aa0585c01b6230dd40c977d5.dll
Size

620KB
MD5

e3e9f5f3aa0585c01b6230dd40c977d5
SHA1

d32e950bac24e56740615ee9f3f86c369812502c
SHA256

8a47bb3a1987425ac99f81c7a307a30a22f6200782dec8b3cbf2ce825d322c39
SHA512

6858855fa691cfd1a9968df48636ab4f9d78505a0e6d03c2f49157ff16eb17622d60073cd9246f3e4f98157d3a729ed139ce442f150096bcaa95520109666f7c
SSDEEP

12288:EE6rSi54cbs3j09TMmonCh5atbz9+eoQoUZpDd7Da1nX9y1HO/zFZx:qe/h3j0dMZnCutz4zI5xDwXUpm

Score

10^/10

dridex 10222 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10222

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 1 IoCs

Processes:

rundll32.exe

flow pid process

33 4736 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
33	4736	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 684 wrote to memory of 4736	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 4736	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 4736	684	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e9f5f3aa0585c01b6230dd40c977d5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:684

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e9f5f3aa0585c01b6230dd40c977d5.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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Downloads

memory/4736-0-0x0000000000810000-0x0000000000949000-memory.dmp

Filesize
1.2MB

Download
memory/4736-2-0x0000000000810000-0x0000000000949000-memory.dmp

Filesize
1.2MB

Download
memory/4736-3-0x0000000000810000-0x0000000000949000-memory.dmp

Filesize
1.2MB

Download
memory/4736-5-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/4736-6-0x0000000000810000-0x0000000000949000-memory.dmp

Filesize
1.2MB

Download