dridex | 5a59dff9c0262fa86c1e40fe13b5d47981304fa9fbec47ec63744802982e9dbc

Analysis

max time kernel
141s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
14-08-2024 22:08

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General

Target

5a59dff9c0262fa86c1e40fe13b5d47981304fa9fbec47ec63744802982e9dbc.dll
Size

184KB
MD5

8121f1df7aeeffc44878242a07ae06a8
SHA1

c44b2c55f1af0a695e9ab639d19fc73efadda95d
SHA256

5a59dff9c0262fa86c1e40fe13b5d47981304fa9fbec47ec63744802982e9dbc
SHA512

cbe7a24d9c82ba0d032ad79004f47518a53ce85b24565146320bd6d2787d69665fded0c6c1c6017ed08d5e78e0d0c084a7391fc44c8d1715a8c2b659878d8f6e
SSDEEP

3072:dJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8J/a//2uFrSc:mfYOX+wTScR/Xzku9LVw8uG

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/2464-0-0x0000000074B90000-0x0000000074BBF000-memory.dmp	dridex_ldr
behavioral1/memory/2464-1-0x0000000074B90000-0x0000000074BBF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2524	2464	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 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 1256 wrote to memory of 2464	1256	rundll32.exe	30
PID 2464 wrote to memory of 2524	2464	rundll32.exe	32
PID 2464 wrote to memory of 2524	2464	rundll32.exe	32
PID 2464 wrote to memory of 2524	2464	rundll32.exe	32
PID 2464 wrote to memory of 2524	2464	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a59dff9c0262fa86c1e40fe13b5d47981304fa9fbec47ec63744802982e9dbc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a59dff9c0262fa86c1e40fe13b5d47981304fa9fbec47ec63744802982e9dbc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 220
    3⤵
    - Program crash
    PID:2524

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/2464-0-0x0000000074B90000-0x0000000074BBF000-memory.dmp

Filesize
188KB

Download
memory/2464-2-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/2464-1-0x0000000074B90000-0x0000000074BBF000-memory.dmp

Filesize
188KB

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