dridex | 53b0ad83c4f4e6eadd75136d758d95aee9ea20c93c84f91f0911d196630692d9

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 16:13

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General

Target

53b0ad83c4f4e6eadd75136d758d95aee9ea20c93c84f91f0911d196630692d9.dll
Size

184KB
MD5

88c5939363d51203aca7bb7cbf745e87
SHA1

a063c0a4c670793d55f76cd2882b3b0125f84dbd
SHA256

53b0ad83c4f4e6eadd75136d758d95aee9ea20c93c84f91f0911d196630692d9
SHA512

548add607194f3dec592f70bbae98aa601887971d523d4648d5686999299fe61cbae26d2cac52f3990c7a50f6902fc6dbe944bbc6db5d76f2b7e8e8e8d223787
SSDEEP

3072:g92qSmHOhnWpPI1ybmJIiC00PArIojHTYVBCn+rs3Ss3qLMTwrLA:g9NSMOEpQ1Q3ODAr+VE

Score

10^/10

dridex 22203 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22203

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 family
dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2900-1-0x0000000074BA0000-0x0000000074BCF000-memory.dmp	dridex_ldr
behavioral1/memory/2900-2-0x0000000074BA0000-0x0000000074BCF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2316	2900	WerFault.exe	31

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 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2612 wrote to memory of 2900	2612	rundll32.exe	31
PID 2900 wrote to memory of 2316	2900	rundll32.exe	32
PID 2900 wrote to memory of 2316	2900	rundll32.exe	32
PID 2900 wrote to memory of 2316	2900	rundll32.exe	32
PID 2900 wrote to memory of 2316	2900	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\53b0ad83c4f4e6eadd75136d758d95aee9ea20c93c84f91f0911d196630692d9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\53b0ad83c4f4e6eadd75136d758d95aee9ea20c93c84f91f0911d196630692d9.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 220
    3⤵
    - Program crash
    PID:2316

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/2900-0-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/2900-1-0x0000000074BA0000-0x0000000074BCF000-memory.dmp

Filesize
188KB

Download
memory/2900-2-0x0000000074BA0000-0x0000000074BCF000-memory.dmp

Filesize
188KB

Download
memory/2900-3-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download