dridex | 0279cd8667ef857c67f11e91bafebecbe665c4c5ab42b4b4daca848c32a73e11

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 09:48

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General

Target

0c535f3181c561d254a92fb3939e28c0N.dll
Size

184KB
MD5

0c535f3181c561d254a92fb3939e28c0
SHA1

16b373dc73bc71feaff76d29f8d43b57b77150b3
SHA256

0279cd8667ef857c67f11e91bafebecbe665c4c5ab42b4b4daca848c32a73e11
SHA512

bc49868fffed8a0297c2c0d9c81895c6042c10a37a6cc06462bc3ada91551314cba2214f4340daa53bf0b2edf13aae8b7c7b5b3259c9e149ebb484f662904b08
SSDEEP

3072:T92qSmHOhnWpPI1ybmJIiC00PArIojHTYVBCn+rs3Ss3qLMTCrLA:T9NSMOEpQ1Q3ODAr+VW

Score

10^/10

dridex 22203 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22203

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

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
behavioral2/memory/3628-1-0x0000000074F00000-0x0000000074F2F000-memory.dmp	dridex_ldr
behavioral2/memory/3628-2-0x0000000074F00000-0x0000000074F2F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3588	3628	WerFault.exe	84

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

Processes:

rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 2856 wrote to memory of 3628	2856	rundll32.exe	84
PID 2856 wrote to memory of 3628	2856	rundll32.exe	84
PID 2856 wrote to memory of 3628	2856	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c535f3181c561d254a92fb3939e28c0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c535f3181c561d254a92fb3939e28c0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3628 -s 616
    3⤵
    - Program crash
    PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3628 -ip 3628
1⤵
PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3628-0-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

Download
memory/3628-1-0x0000000074F00000-0x0000000074F2F000-memory.dmp

Filesize
188KB

Download
memory/3628-2-0x0000000074F00000-0x0000000074F2F000-memory.dmp

Filesize
188KB

Download
memory/3628-3-0x0000000000BF0000-0x0000000000BF6000-memory.dmp

Filesize
24KB

Download