dridex | 327815c9fa19a7d2f7be77f1fd2fd7db616e223e974d2c8462df86a83566af1d

Analysis

max time kernel
110s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 05:09

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General

Target

f96ca44a444cf8bdbbdb8da526452630N.dll
Size

184KB
MD5

f96ca44a444cf8bdbbdb8da526452630
SHA1

31abf1c98daab9e8072e3605d67391f9e3c916b6
SHA256

327815c9fa19a7d2f7be77f1fd2fd7db616e223e974d2c8462df86a83566af1d
SHA512

42ad5026f6699111d995996b18c4275cdce4f5f252eb3ba65f302dce7da6d5f81c159feb4852c18c7391cbb1df1778ccd25807bd9275d1779600681b8f5ce821
SSDEEP

3072:yJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JJa//2uFrSc:zfYOX+wTScR/Xzku9LVwauG

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
behavioral1/memory/2916-1-0x0000000075080000-0x00000000750AF000-memory.dmp	dridex_ldr
behavioral1/memory/2916-2-0x0000000075080000-0x00000000750AF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2160	2916	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 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 1916 wrote to memory of 2916	1916	rundll32.exe	30
PID 2916 wrote to memory of 2160	2916	rundll32.exe	31
PID 2916 wrote to memory of 2160	2916	rundll32.exe	31
PID 2916 wrote to memory of 2160	2916	rundll32.exe	31
PID 2916 wrote to memory of 2160	2916	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f96ca44a444cf8bdbbdb8da526452630N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f96ca44a444cf8bdbbdb8da526452630N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 220
    3⤵
    - Program crash
    PID:2160

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/2916-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x0000000075080000-0x00000000750AF000-memory.dmp

Filesize
188KB

Download
memory/2916-2-0x0000000075080000-0x00000000750AF000-memory.dmp

Filesize
188KB

Download
memory/2916-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download