dridex | 639c1e0ebd239824b033591f8809a3c8e4e92bc42fb456514b10b8ee7089c5e6

Analysis

max time kernel
141s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 22:03

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General

Target

639c1e0ebd239824b033591f8809a3c8e4e92bc42fb456514b10b8ee7089c5e6.dll
Size

184KB
MD5

e2fe0ab19333c1e40a495c63d404c691
SHA1

ed4c4973a9d83d9b60b3f521baa3699581f780f4
SHA256

639c1e0ebd239824b033591f8809a3c8e4e92bc42fb456514b10b8ee7089c5e6
SHA512

a06e9fcf7f519c62e7a87b573beddd5fff8d7221bd36d669d02b3fd9beb24b4b8ae4d50b8f0fe1dec8cf0db392d6885f53675d00e2c5dbcd3cc59fdcfef1aa99
SSDEEP

3072:xgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgGdA4l:IPFkq6zOe5ilSanOpd

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/2136-0-0x0000000074660000-0x0000000074690000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2580	2136	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

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 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2924 wrote to memory of 2136	2924	rundll32.exe	30
PID 2136 wrote to memory of 2580	2136	rundll32.exe	32
PID 2136 wrote to memory of 2580	2136	rundll32.exe	32
PID 2136 wrote to memory of 2580	2136	rundll32.exe	32
PID 2136 wrote to memory of 2580	2136	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\639c1e0ebd239824b033591f8809a3c8e4e92bc42fb456514b10b8ee7089c5e6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\639c1e0ebd239824b033591f8809a3c8e4e92bc42fb456514b10b8ee7089c5e6.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 220
    3⤵
    - Program crash
    PID:2580

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/2136-1-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

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memory/2136-0-0x0000000074660000-0x0000000074690000-memory.dmp

Filesize
192KB

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