dridex | bff64e7c3399b711a277033c3cb5e6dce795133d5532f9432131f8d06a415233

Analysis

max time kernel
140s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 03:15

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General

Target

bff64e7c3399b711a277033c3cb5e6dce795133d5532f9432131f8d06a415233.dll
Size

188KB
MD5

f65060d6baec4184a56c18c5ba9232e3
SHA1

c19e2c66de98630b0c6f80f425332d80d31b15f5
SHA256

bff64e7c3399b711a277033c3cb5e6dce795133d5532f9432131f8d06a415233
SHA512

ed41ae6535a5196d35142190c12c6ed28cd194c0df36eda08fb43f45d92d29f3a63798e0c0acbb917638114eb0bbc583bcd00ad3087b0928bdb56a79d97bbad4
SSDEEP

3072:PteMq7hp/YIzA6BZvlWnTDN2GL9L8NLXWruiuUCzTOwwc0cIzv9qM:Xq7fYIHBZkTB6DWruUCOwjt

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

103.87.173.60:443

45.32.243.209:8116

207.180.208.54:4664

rc4.plain

Signatures

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

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/2792-1-0x0000000075470000-0x00000000754A0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2288 2792 WerFault.exe 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

Processes:

rundll32.exe

description ioc process

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

pid	pid_target	process	target process
2288	2792	WerFault.exe	rundll32.exe

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2896 wrote to memory of 2792	2896	rundll32.exe	rundll32.exe
PID 2792 wrote to memory of 2288	2792	rundll32.exe	WerFault.exe
PID 2792 wrote to memory of 2288	2792	rundll32.exe	WerFault.exe
PID 2792 wrote to memory of 2288	2792	rundll32.exe	WerFault.exe
PID 2792 wrote to memory of 2288	2792	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bff64e7c3399b711a277033c3cb5e6dce795133d5532f9432131f8d06a415233.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bff64e7c3399b711a277033c3cb5e6dce795133d5532f9432131f8d06a415233.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 300
    3⤵
    - Program crash
    PID:2288

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/2792-0-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2792-1-0x0000000075470000-0x00000000754A0000-memory.dmp

Filesize
192KB

Download
memory/2792-3-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download