dridex | 403dac711b2d59e06f1b61fbbb3ffad6d0ffc2553b581c31d854beabafa8305f

Analysis

max time kernel
29s
max time network
13s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:18

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General

Target

403dac711b2d59e06f1b61fbbb3ffad6d0ffc2553b581c31d854beabafa8305f.dll
Size

154KB
MD5

3af161d10b24ca55d53cd7b8bc281e2e
SHA1

72e477444cab224de74858bac7c499d54396deb2
SHA256

403dac711b2d59e06f1b61fbbb3ffad6d0ffc2553b581c31d854beabafa8305f
SHA512

89cd4be2739bf00f7dee7d5bd8b4ac9b722cdd9dd3c41ccb67f0daabc9787a5015237ed69d20e1d2728c8f800c91e3a58b4194ae81c766a3b5cd4edf1cea4d38

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/2036-62-0x0000000074F40000-0x0000000074F6D000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

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

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2036	1840	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\403dac711b2d59e06f1b61fbbb3ffad6d0ffc2553b581c31d854beabafa8305f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\403dac711b2d59e06f1b61fbbb3ffad6d0ffc2553b581c31d854beabafa8305f.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:2036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2036-60-0x0000000000000000-mapping.dmp

Download
memory/2036-61-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/2036-62-0x0000000074F40000-0x0000000074F6D000-memory.dmp

Filesize
180KB

Download
memory/2036-64-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download