dridex | 0408c940043d7a6c7ee33b858641752e1862b06026b5754a6976419488fa9636

Analysis

max time kernel
110s
max time network
45s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-09-2024 22:20

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General

Target

ba35aac2da0e31b19196b85a8dda6f50N.dll
Size

236KB
MD5

ba35aac2da0e31b19196b85a8dda6f50
SHA1

564ab3740a444785ad5d07bfb7edc7b967417fce
SHA256

0408c940043d7a6c7ee33b858641752e1862b06026b5754a6976419488fa9636
SHA512

3d7bf5df1dbd9619a5780cf63781344d9f0ec41e4145e664e3d9ac769ad8f58b5b5cd6bc6b97bbdec78e2781693b772b44e5140933e25d1ab5ff352814139e56
SSDEEP

6144:B4V3yyQTz8ITeRDZSw3D2Fsd1u/6mv5/dC:BciyQTdT+swTgt/6c/dC

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

77.220.64.40:443

8.4.9.152:3786

185.246.87.202:3098

rc4.plain

Signatures

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

Dridex Loader 3 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1784-1-0x0000000074C80000-0x0000000074CBD000-memory.dmp	dridex_ldr
behavioral1/memory/1784-2-0x0000000074C80000-0x0000000074CBD000-memory.dmp	dridex_ldr
behavioral1/memory/1784-7-0x0000000074C80000-0x0000000074CBD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	1784	rundll32.exe
5	1784	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

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

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30
PID 2196 wrote to memory of 1784	2196	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba35aac2da0e31b19196b85a8dda6f50N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba35aac2da0e31b19196b85a8dda6f50N.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:1784

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1784-0-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1784-1-0x0000000074C80000-0x0000000074CBD000-memory.dmp

Filesize
244KB

Download
memory/1784-2-0x0000000074C80000-0x0000000074CBD000-memory.dmp

Filesize
244KB

Download
memory/1784-3-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1784-7-0x0000000074C80000-0x0000000074CBD000-memory.dmp

Filesize
244KB

Download