dridex | 9d96850f3796e0d6fb050b2d0ce20fdd02f355b07157e3277b1d0d807d9b6e99

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-10-2024 12:47

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General

Target

9d96850f3796e0d6fb050b2d0ce20fdd02f355b07157e3277b1d0d807d9b6e99N.dll
Size

184KB
MD5

e71c626e7de07c9723b8cd351aa79a30
SHA1

9570402f39d17b6c5e95f26a04b15ab98eb807f8
SHA256

9d96850f3796e0d6fb050b2d0ce20fdd02f355b07157e3277b1d0d807d9b6e99
SHA512

6f962bcac345b56237acc01dba053a047f43f31fbc4dc55a9c68e0e23b2f0928ce80f993f7fbdf3f52c3b1207102718b1c9e16d15853be0e30b075583ab24fa3
SSDEEP

3072:mW8WgWhVnmr6k/6zsRJLNqTXvMU9tb+/HU6ngm3Wx9ixCH0u:t8qh+66QsRdNiBW/06ngm3WexC

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

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000075020000-0x0000000075050000-memory.dmp	dridex_ldr
behavioral1/memory/2444-2-0x0000000075020000-0x0000000075050000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3028 2444 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
3028	2444	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 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2212 wrote to memory of 2444	2212	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 3028	2444	rundll32.exe	WerFault.exe
PID 2444 wrote to memory of 3028	2444	rundll32.exe	WerFault.exe
PID 2444 wrote to memory of 3028	2444	rundll32.exe	WerFault.exe
PID 2444 wrote to memory of 3028	2444	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d96850f3796e0d6fb050b2d0ce20fdd02f355b07157e3277b1d0d807d9b6e99N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d96850f3796e0d6fb050b2d0ce20fdd02f355b07157e3277b1d0d807d9b6e99N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2444
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 220
    3⤵
    - Program crash
    PID:3028

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/2444-0-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/2444-1-0x0000000075020000-0x0000000075050000-memory.dmp

Filesize
192KB

Download
memory/2444-3-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/2444-2-0x0000000075020000-0x0000000075050000-memory.dmp

Filesize
192KB

Download