dridex | 3f2802aa78c67d2caf1959fad9394f144114f63acb3e848bbd83ee1f886a3861

Analysis

max time kernel
83s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 20:56

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General

Target

3f2802aa78c67d2caf1959fad9394f144114f63acb3e848bbd83ee1f886a3861.dll
Size

454KB
MD5

ef875363d5d5c8f6e96388203b1b1409
SHA1

cdc6fa8cf5645c7b77d5c11c678497e2d4a498bd
SHA256

3f2802aa78c67d2caf1959fad9394f144114f63acb3e848bbd83ee1f886a3861
SHA512

72296148c8c1df8e5604c9ec9b41412687e74f0bc9e526daebfdbf5e473783ebe6015396bd6f22b3914624c2bb2d3c55206278fb1679df16fcf703eb00a8ef79
SSDEEP

12288:ItOpOE1xYO2vTH15L1pq9LSSAa8EN32D5y:ItfEiHP1pk

Score

10^/10

dridex 40112 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/756-0-0x0000000075400000-0x000000007542E000-memory.dmp	dridex_ldr
behavioral2/memory/756-3-0x0000000075400000-0x000000007542E000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

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 4780 wrote to memory of 756	4780	rundll32.exe	83
PID 4780 wrote to memory of 756	4780	rundll32.exe	83
PID 4780 wrote to memory of 756	4780	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f2802aa78c67d2caf1959fad9394f144114f63acb3e848bbd83ee1f886a3861.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f2802aa78c67d2caf1959fad9394f144114f63acb3e848bbd83ee1f886a3861.dll,#1
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/756-0-0x0000000075400000-0x000000007542E000-memory.dmp

Filesize
184KB

Download
memory/756-2-0x0000000000D80000-0x0000000000D86000-memory.dmp

Filesize
24KB

Download
memory/756-3-0x0000000075400000-0x000000007542E000-memory.dmp

Filesize
184KB

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