dridex | 24db2c238a80d9841af8c57e59173b94c0e838ca6136049f0779daf3b4dd26f5

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 20:02

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General

Target

24db2c238a80d9841af8c57e59173b94c0e838ca6136049f0779daf3b4dd26f5.dll
Size

188KB
MD5

fbe2c7bfbcc19e2c7130edd2e762b13c
SHA1

37a5da8bcb8d8307fbab09bf4656f8dd83f9eba6
SHA256

24db2c238a80d9841af8c57e59173b94c0e838ca6136049f0779daf3b4dd26f5
SHA512

92acb4a6ab6d73cbf30b2fd69d14deea3b037187911a37e8f1c2f48cc09761b8e180e84e30832b17592158d4390520533ffcd2cc4eba599d9f94a0c231684e69
SSDEEP

3072:bWa3N1eqJ7cNe58per6JpynepWHVD9qMe402JYIUk9H8Iz83SWx9klSC:NxwO/Spynep6VDcMeQeIUk9cI6Z5

Score

10^/10

dridex 22202 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22202

134.209.182.12:443

188.40.100.254:4664

103.109.247.9:10443

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/828-1-0x0000000074640000-0x0000000074670000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2336	828	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 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 2104 wrote to memory of 828	2104	rundll32.exe	30
PID 828 wrote to memory of 2336	828	rundll32.exe	32
PID 828 wrote to memory of 2336	828	rundll32.exe	32
PID 828 wrote to memory of 2336	828	rundll32.exe	32
PID 828 wrote to memory of 2336	828	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\24db2c238a80d9841af8c57e59173b94c0e838ca6136049f0779daf3b4dd26f5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\24db2c238a80d9841af8c57e59173b94c0e838ca6136049f0779daf3b4dd26f5.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 828 -s 252
    3⤵
    - Program crash
    PID:2336

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/828-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

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memory/828-1-0x0000000074640000-0x0000000074670000-memory.dmp

Filesize
192KB

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