dridex | b975ac8906fc88279e6fdfd3a859eb81a56b24be5c03ab741f2c99aa3d51a15c

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 02:44

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General

Target

b975ac8906fc88279e6fdfd3a859eb81a56b24be5c03ab741f2c99aa3d51a15c.dll
Size

188KB
MD5

736e6b791bc5b674d353e92b6ff4a467
SHA1

733b972ed53890f19904ca14a1b9d11c468fd4b8
SHA256

b975ac8906fc88279e6fdfd3a859eb81a56b24be5c03ab741f2c99aa3d51a15c
SHA512

e36c38a1ccd365ec394de915fd1e88dd1e95e1deff19e87e555bc0a00c51bf0256e619ba41ed8b7acf4e3f7fb8fcc5ae76f3afd11becd0fe29669e3e319051f1
SSDEEP

3072:wteMq7hp/YIzA6BZvlWnTDN2GL9L8NLXWruiuUCzTOwwc0cIzf9qM:kq7fYIHBZkTB6DWruUCOwjt

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/2336-1-0x0000000074950000-0x0000000074980000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2448	2336	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

Processes:

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	procid_target
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 1624 wrote to memory of 2336	1624	rundll32.exe	30
PID 2336 wrote to memory of 2448	2336	rundll32.exe	32
PID 2336 wrote to memory of 2448	2336	rundll32.exe	32
PID 2336 wrote to memory of 2448	2336	rundll32.exe	32
PID 2336 wrote to memory of 2448	2336	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b975ac8906fc88279e6fdfd3a859eb81a56b24be5c03ab741f2c99aa3d51a15c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b975ac8906fc88279e6fdfd3a859eb81a56b24be5c03ab741f2c99aa3d51a15c.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 300
    3⤵
    - Program crash
    PID:2448

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/2336-0-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000074950000-0x0000000074980000-memory.dmp

Filesize
192KB

Download
memory/2336-3-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download