dridex | 3ef9bd8d014bd868c8ead01438aafc6fa68c12224b8f9fbe75d159c8b9f93c82

Analysis

max time kernel
110s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 12:39

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General

Target

230cef5f92e36be46c6a8aadbb571290N.dll
Size

184KB
MD5

230cef5f92e36be46c6a8aadbb571290
SHA1

633ccfbe38fa47ccea1c528eb87183dd02130a4c
SHA256

3ef9bd8d014bd868c8ead01438aafc6fa68c12224b8f9fbe75d159c8b9f93c82
SHA512

30e1924bee93355e8f3693cdc5f28ce609406e73cc9633cdf29c04b4eae1786cd7f513f7fdad3bb3f82cc3e4f2d320830995b7b6870ad77d9a57718d92e97c90
SSDEEP

3072:3JQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8Jfa//2uFrSc:EfYOX+wTScR/Xzku9LVwAuG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

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

resource	yara_rule
behavioral1/memory/1960-0-0x0000000075430000-0x000000007545F000-memory.dmp	dridex_ldr
behavioral1/memory/1960-3-0x0000000075430000-0x000000007545F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2560	1960	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 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 2540 wrote to memory of 1960	2540	rundll32.exe	30
PID 1960 wrote to memory of 2560	1960	rundll32.exe	31
PID 1960 wrote to memory of 2560	1960	rundll32.exe	31
PID 1960 wrote to memory of 2560	1960	rundll32.exe	31
PID 1960 wrote to memory of 2560	1960	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\230cef5f92e36be46c6a8aadbb571290N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\230cef5f92e36be46c6a8aadbb571290N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 220
    3⤵
    - Program crash
    PID:2560

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/1960-0-0x0000000075430000-0x000000007545F000-memory.dmp

Filesize
188KB

Download
memory/1960-2-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/1960-3-0x0000000075430000-0x000000007545F000-memory.dmp

Filesize
188KB

Download