dridex | 2f6b671d7e01c0fe454139d7aa4155be857299fd2048864aa73a715f0e3f6569

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 21:42

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General

Target

f690875a884cc5db17ccc5455a942f00N.dll
Size

184KB
MD5

f690875a884cc5db17ccc5455a942f00
SHA1

8ab7ca7649d776b6f4674508c12535dd7a4ad0de
SHA256

2f6b671d7e01c0fe454139d7aa4155be857299fd2048864aa73a715f0e3f6569
SHA512

54349d9e81e6255f43240f3d4cd898db6f5352f0c9574b3d67e2a4771cc9a85d87aa7b8b1b60426235f681823a55ee11c85429a09594e6a8b886560fe7ddf17e
SSDEEP

3072:dJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8Jla//2uFrSc:mfYOX+wTScR/Xzku9LVwGuG

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/2572-1-0x0000000074B10000-0x0000000074B3F000-memory.dmp	dridex_ldr
behavioral1/memory/2572-2-0x0000000074B10000-0x0000000074B3F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2544	2572	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 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2120 wrote to memory of 2572	2120	rundll32.exe	30
PID 2572 wrote to memory of 2544	2572	rundll32.exe	31
PID 2572 wrote to memory of 2544	2572	rundll32.exe	31
PID 2572 wrote to memory of 2544	2572	rundll32.exe	31
PID 2572 wrote to memory of 2544	2572	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f690875a884cc5db17ccc5455a942f00N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f690875a884cc5db17ccc5455a942f00N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2572 -s 220
    3⤵
    - Program crash
    PID:2544

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/2572-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2572-1-0x0000000074B10000-0x0000000074B3F000-memory.dmp

Filesize
188KB

Download
memory/2572-2-0x0000000074B10000-0x0000000074B3F000-memory.dmp

Filesize
188KB

Download
memory/2572-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

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