dridex | 4138756cecb9ef66129bfc53a64682be29e66cdd6f79065273fb4f9da37c7a76

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 20:08

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General

Target

4138756cecb9ef66129bfc53a64682be29e66cdd6f79065273fb4f9da37c7a76.dll
Size

184KB
MD5

71c6436a68be2a83a48a3f2fa3f91562
SHA1

56e0a3e83ef2bfaabf66352860952a96b7ce520d
SHA256

4138756cecb9ef66129bfc53a64682be29e66cdd6f79065273fb4f9da37c7a76
SHA512

91f01a9f06930784117ecef5423aa30af9381915f102847ab9bff960022c2c38a12843c227809f8e7ebbb7b9e3e365d05eda9314cfa2714aadd71fb457f5cf65
SSDEEP

3072:FJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8Jwa//2uFrSc:ufYOX+wTScR/Xzku9LVwTuG

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

resource	yara_rule
behavioral1/memory/2256-0-0x0000000075390000-0x00000000753BF000-memory.dmp	dridex_ldr
behavioral1/memory/2256-2-0x0000000075390000-0x00000000753BF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3040	2256	WerFault.exe	28

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 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2248 wrote to memory of 2256	2248	rundll32.exe	28
PID 2256 wrote to memory of 3040	2256	rundll32.exe	31
PID 2256 wrote to memory of 3040	2256	rundll32.exe	31
PID 2256 wrote to memory of 3040	2256	rundll32.exe	31
PID 2256 wrote to memory of 3040	2256	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4138756cecb9ef66129bfc53a64682be29e66cdd6f79065273fb4f9da37c7a76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4138756cecb9ef66129bfc53a64682be29e66cdd6f79065273fb4f9da37c7a76.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 220
    3⤵
    - Program crash
    PID:3040

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/2256-0-0x0000000075390000-0x00000000753BF000-memory.dmp

Filesize
188KB

Download
memory/2256-1-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2256-2-0x0000000075390000-0x00000000753BF000-memory.dmp

Filesize
188KB

Download