dridex | 74311b805065de2946711bc4de5c51f3f89e948750db55e4ae28cf1ac647515c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 05:38

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General

Target

aeb3b401a35aa349186803859d6a0f40N.dll
Size

184KB
MD5

aeb3b401a35aa349186803859d6a0f40
SHA1

ec7a4b00fc63cd233f3d4edf309c0f932b8a5efc
SHA256

74311b805065de2946711bc4de5c51f3f89e948750db55e4ae28cf1ac647515c
SHA512

12c710e1336f54672958b9c589ffb2a50bc0e816b694f39844bbcdc0ac4379232a02d89eed312b0361b1fffe3ebb16fc0150986d1b35b72d37f993c0d71e550b
SSDEEP

3072:892qSmHOhnWpPI1ybmJIiC00PArIojHTYVBCn+rs3Ss3qLMTwrLA:89NSMOEpQ1Q3ODAr+V8

Score

10^/10

dridex 22203 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22203

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
behavioral1/memory/2300-1-0x0000000074B50000-0x0000000074B7F000-memory.dmp	dridex_ldr
behavioral1/memory/2300-2-0x0000000074B50000-0x0000000074B7F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2940	2300	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 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 1512 wrote to memory of 2300	1512	rundll32.exe	30
PID 2300 wrote to memory of 2940	2300	rundll32.exe	31
PID 2300 wrote to memory of 2940	2300	rundll32.exe	31
PID 2300 wrote to memory of 2940	2300	rundll32.exe	31
PID 2300 wrote to memory of 2940	2300	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aeb3b401a35aa349186803859d6a0f40N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\aeb3b401a35aa349186803859d6a0f40N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 220
    3⤵
    - Program crash
    PID:2940

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/2300-0-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000074B50000-0x0000000074B7F000-memory.dmp

Filesize
188KB

Download
memory/2300-2-0x0000000074B50000-0x0000000074B7F000-memory.dmp

Filesize
188KB

Download
memory/2300-3-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download