dridex | e4f3284504f31701c984b4416b0aa1296eb871c89667d3564dc8c53c7a0fa080

Analysis

max time kernel
101s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 05:26

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General

Target

75703ff55b3a4de6f84ea9e0d9792ee0N.dll
Size

184KB
MD5

75703ff55b3a4de6f84ea9e0d9792ee0
SHA1

7a0b5213f4e4738098a07e7c39592ca810d57557
SHA256

e4f3284504f31701c984b4416b0aa1296eb871c89667d3564dc8c53c7a0fa080
SHA512

79ef5061cf2740df3e7cab3bc2852c280afcb2e08753af87437ab12abeadf119c8b452ee8ef3be41078b22576a3a4aee72a97ccbeab638b8fbbe3d0441bab2de
SSDEEP

3072:mJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JRa//2uFrSc:PfYOX+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

resource	yara_rule
behavioral2/memory/2636-1-0x0000000074E10000-0x0000000074E3F000-memory.dmp	dridex_ldr
behavioral2/memory/2636-2-0x0000000074E10000-0x0000000074E3F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4552	2636	WerFault.exe	85

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 3 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 2636	928	rundll32.exe	85
PID 928 wrote to memory of 2636	928	rundll32.exe	85
PID 928 wrote to memory of 2636	928	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\75703ff55b3a4de6f84ea9e0d9792ee0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:928
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\75703ff55b3a4de6f84ea9e0d9792ee0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 616
    3⤵
    - Program crash
    PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2636 -ip 2636
1⤵
PID:4140

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

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Downloads

memory/2636-0-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download
memory/2636-1-0x0000000074E10000-0x0000000074E3F000-memory.dmp

Filesize
188KB

Download
memory/2636-2-0x0000000074E10000-0x0000000074E3F000-memory.dmp

Filesize
188KB

Download
memory/2636-3-0x0000000002DA0000-0x0000000002DA6000-memory.dmp

Filesize
24KB

Download