dridex | f7e70361b1f4bc2b91e2181df4df748eff086f14c8fe659e20143f346b8cd4a4

Analysis

max time kernel
47s
max time network
55s
platform
windows10_x64
resource
win10v20210408
submitted
21-04-2021 18:09

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General

Target

f7e70361b1f4bc2b91e2181df4df748eff086f14c8fe659e20143f346b8cd4a4.dll
Size

154KB
MD5

50a1a5b7061ded92b5e670780bae7c70
SHA1

28ee964bd71979394b2cf8a012621909ca25e715
SHA256

f7e70361b1f4bc2b91e2181df4df748eff086f14c8fe659e20143f346b8cd4a4
SHA512

e247fe04865f627edbf43e5e5cadc33944bff3da3dc59cf51f29ada191b824ff53815c9a2983906a9aa6a3f22098b263257f0912971de3846b79db3d2719f5ab

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/3112-115-0x0000000073890000-0x00000000738BD000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2988 wrote to memory of 3112	2988	rundll32.exe	rundll32.exe
PID 2988 wrote to memory of 3112	2988	rundll32.exe	rundll32.exe
PID 2988 wrote to memory of 3112	2988	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7e70361b1f4bc2b91e2181df4df748eff086f14c8fe659e20143f346b8cd4a4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7e70361b1f4bc2b91e2181df4df748eff086f14c8fe659e20143f346b8cd4a4.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:3112

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/3112-114-0x0000000000000000-mapping.dmp

Download
memory/3112-115-0x0000000073890000-0x00000000738BD000-memory.dmp

Filesize
180KB

Download
memory/3112-117-0x0000000002BE0000-0x0000000002BE6000-memory.dmp

Filesize
24KB

Download