dridex | 236a7a9bc6faf7949495e45db7e308c1b65b421bd4e079766dad0ae4150f6dfe

Analysis

max time kernel
110s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 17:33

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General

Target

557bf3814648e231e702fc2288ef4460N.dll
Size

184KB
MD5

557bf3814648e231e702fc2288ef4460
SHA1

7242530d6a4801093c6a788ecb258fc6f263ccca
SHA256

236a7a9bc6faf7949495e45db7e308c1b65b421bd4e079766dad0ae4150f6dfe
SHA512

babffd9cd6720be723cf60220fe243c73e5d528d139e7af4546868abc67c8ef8ab8b9e2df9f5fbbcbd21bfe7ecc455035c24237870568a1e7baf2029c3c35963
SSDEEP

3072:cJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JWa//2uFrSc:hfYOX+wTScR/Xzku9LVwpuG

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/2336-1-0x0000000074630000-0x000000007465F000-memory.dmp	dridex_ldr
behavioral1/memory/2336-2-0x0000000074630000-0x000000007465F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2816	2336	WerFault.exe	29

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 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2884 wrote to memory of 2336	2884	rundll32.exe	29
PID 2336 wrote to memory of 2816	2336	rundll32.exe	30
PID 2336 wrote to memory of 2816	2336	rundll32.exe	30
PID 2336 wrote to memory of 2816	2336	rundll32.exe	30
PID 2336 wrote to memory of 2816	2336	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\557bf3814648e231e702fc2288ef4460N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\557bf3814648e231e702fc2288ef4460N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 224
    3⤵
    - Program crash
    PID:2816

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/2336-0-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000074630000-0x000000007465F000-memory.dmp

Filesize
188KB

Download
memory/2336-2-0x0000000074630000-0x000000007465F000-memory.dmp

Filesize
188KB

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