dridex | 4726dbdd3cfde7aec0eecbc934a96393ba1c6962aff42e4b59d30c2c947b7b8f

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14-08-2024 02:00

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General

Target

a637dc1723fba380ae56869a75dcdd10N.dll
Size

184KB
MD5

a637dc1723fba380ae56869a75dcdd10
SHA1

84c6d5108e778ccd22f5e90e552d38827babfa14
SHA256

4726dbdd3cfde7aec0eecbc934a96393ba1c6962aff42e4b59d30c2c947b7b8f
SHA512

230710679ddafc6028f700233d5827c085fff98649c1590d21b7dbc2ddf41cbe62aaa0379c677bd97e70d2c35a9b6375a6934eef8b8621576527320e71cfc2f0
SSDEEP

3072:hgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgXdA4l:4PFkq6zOe5ilSanOAd

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2980-0-0x00000000753E0000-0x0000000075410000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2340	2980	WerFault.exe	31

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

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2348 wrote to memory of 2980	2348	rundll32.exe	31
PID 2980 wrote to memory of 2340	2980	rundll32.exe	32
PID 2980 wrote to memory of 2340	2980	rundll32.exe	32
PID 2980 wrote to memory of 2340	2980	rundll32.exe	32
PID 2980 wrote to memory of 2340	2980	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a637dc1723fba380ae56869a75dcdd10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a637dc1723fba380ae56869a75dcdd10N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 220
    3⤵
    - Program crash
    PID:2340

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/2980-0-0x00000000753E0000-0x0000000075410000-memory.dmp

Filesize
192KB

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memory/2980-1-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

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