dridex | f5a3a486a6c81e0fb4dc0dc35f8ea8609e0b6fe5334e09e6bcf1a4dc69a3f3bb

Analysis

max time kernel
18s
max time network
135s
platform
windows10_x64
resource
win10v20210410
submitted
16/04/2021, 18:18

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General

Target
f5a3a486a6c81e0fb4dc0dc35f8ea8609e0b6fe5334e09e6bcf1a4dc69a3f3bb.dll
Size 162KB
Sample210416-918l711526
SHA256 f5a3a486a6c81e0fb4dc0dc35f8ea8609e0b6fe5334e09e6bcf1a4dc69a3f3bb
MD5 c498666dc091f618bcf62268b022dbbb
SHA1 0e3423c98f487a8396a2f3df99db5e256352d000
SHA512 708c07f0735f9b13bc375e5da1d4494d251b50fca7c3e1c736fa5b0b458d47f16c46a6bfea8035fcdb847b636c9bca2d94db3e556256058bd52f71b5d34b5217
MD5 SHA1 SHA512

Score

10^/10

dridex 40112 botnet 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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/4060-115-0x0000000074480000-0x00000000744AE000-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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 4060	3560	rundll32.exe	54
PID 3560 wrote to memory of 4060	3560	rundll32.exe	54
PID 3560 wrote to memory of 4060	3560	rundll32.exe	54

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f5a3a486a6c81e0fb4dc0dc35f8ea8609e0b6fe5334e09e6bcf1a4dc69a3f3bb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f5a3a486a6c81e0fb4dc0dc35f8ea8609e0b6fe5334e09e6bcf1a4dc69a3f3bb.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:4060

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

Replay Monitor

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Downloads

memory/4060-115-0x0000000074480000-0x00000000744AE000-memory.dmp

Download

memory/4060-117-0x0000000000510000-0x0000000000516000-memory.dmp