dridex | b673da546e98a5f04b9a2d295b67ce8d61d63c7993aca3970934005fa4297e76

Analysis

max time kernel
105s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 00:56

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General

Target

403df42dc568507152cb0e76b7ee1920N.dll
Size

184KB
MD5

403df42dc568507152cb0e76b7ee1920
SHA1

1a04496ff1c4bf05e6aaa714ec11537447d5bd0c
SHA256

b673da546e98a5f04b9a2d295b67ce8d61d63c7993aca3970934005fa4297e76
SHA512

ae8994fcb0ccc553bdcf13b450c6164be36a36c81eb5e38373add8dd6b09e6d102a72114d9700c97eaf9fde94e20209285b8d7b3e0c89eb4c771d1633ccabeb0
SSDEEP

3072:xJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8Jha//2uFrSc:SfYOX+wTScR/Xzku9LVwKuG

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

Processes:

resource	yara_rule
behavioral2/memory/3688-1-0x0000000075150000-0x000000007517F000-memory.dmp	dridex_ldr
behavioral2/memory/3688-3-0x0000000075150000-0x000000007517F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1712	3688	WerFault.exe	84

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 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1040 wrote to memory of 3688	1040	rundll32.exe	84
PID 1040 wrote to memory of 3688	1040	rundll32.exe	84
PID 1040 wrote to memory of 3688	1040	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\403df42dc568507152cb0e76b7ee1920N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\403df42dc568507152cb0e76b7ee1920N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3688
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 616
    3⤵
    - Program crash
    PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3688 -ip 3688
1⤵
PID:884

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/3688-2-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

Filesize
24KB

Download
memory/3688-1-0x0000000075150000-0x000000007517F000-memory.dmp

Filesize
188KB

Download
memory/3688-3-0x0000000075150000-0x000000007517F000-memory.dmp

Filesize
188KB

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