dridex | 77e23825a79bcff5bc78c32cccb8e13ddb073c09b0f0afee9b9595f39dc086bc

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11-08-2024 22:46

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General

Target

77e23825a79bcff5bc78c32cccb8e13ddb073c09b0f0afee9b9595f39dc086bc.dll
Size

184KB
MD5

f0782e5650c2ec206e199275b975079c
SHA1

decff3718ef8dd0cf35a8b1a988f415658084006
SHA256

77e23825a79bcff5bc78c32cccb8e13ddb073c09b0f0afee9b9595f39dc086bc
SHA512

5b5660b8dbca06a3ff1068df0a382dd2a480a31c42740f856f3ec6badd5da5756b9ce89e54ce9757448ff0baad191a1dbba41ab9a19c0fe6f2b8cd7c24acdb9a
SSDEEP

3072:QW8WgWhVnmr6k/6zsRJLNqTXvMU9tb+/HU6ngmcWx9ixCH0u:78qh+66QsRdNiBW/06ngmcWexC

Score

10^/10

dridex 22203 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22203

103.75.201.2:443

158.223.1.108:6225

165.22.28.242:4664

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

resource	yara_rule
behavioral1/memory/1592-0-0x0000000074940000-0x0000000074970000-memory.dmp	dridex_ldr
behavioral1/memory/1592-2-0x0000000074940000-0x0000000074970000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2452	1592	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1596 wrote to memory of 1592	1596	rundll32.exe	30
PID 1592 wrote to memory of 2452	1592	rundll32.exe	32
PID 1592 wrote to memory of 2452	1592	rundll32.exe	32
PID 1592 wrote to memory of 2452	1592	rundll32.exe	32
PID 1592 wrote to memory of 2452	1592	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\77e23825a79bcff5bc78c32cccb8e13ddb073c09b0f0afee9b9595f39dc086bc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\77e23825a79bcff5bc78c32cccb8e13ddb073c09b0f0afee9b9595f39dc086bc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 220
    3⤵
    - Program crash
    PID:2452

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

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Downloads

memory/1592-0-0x0000000074940000-0x0000000074970000-memory.dmp

Filesize
192KB

Download
memory/1592-1-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1592-2-0x0000000074940000-0x0000000074970000-memory.dmp

Filesize
192KB

Download