dridex | b2535bbb3a01198477e0729495c2f8355bb24a49ff395d363e3998c7f55099a6

Analysis

max time kernel
50s
max time network
57s
platform
windows10_x64
resource
win10v20210408
submitted
11-05-2021 13:10

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General

Target

b2535bbb3a01198477e0729495c2f8355bb24a49ff395d363e3998c7f55099a6.dll
Size

162KB
MD5

4bcb78db6414508d25908a4bf6d77be9
SHA1

8572687b93f3dc58dad3614851512a8da16c6b6e
SHA256

b2535bbb3a01198477e0729495c2f8355bb24a49ff395d363e3998c7f55099a6
SHA512

2374b5e8cb4846dbfd4f164f554306d0f87e5c72ba4c46bade856aa0e1e8fd772bda8df3024a9326a26e8073c1c7143d85e1c95b9bbbd2579ec56a7c726e43d2

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

Processes:

resource	yara_rule
behavioral1/memory/756-115-0x0000000073F20000-0x0000000073F4E000-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 4068 wrote to memory of 756	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 756	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 756	4068	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2535bbb3a01198477e0729495c2f8355bb24a49ff395d363e3998c7f55099a6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2535bbb3a01198477e0729495c2f8355bb24a49ff395d363e3998c7f55099a6.dll,#1
2⤵
- Checks whether UAC is enabled
PID:756

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/756-114-0x0000000000000000-mapping.dmp

Download
memory/756-115-0x0000000073F20000-0x0000000073F4E000-memory.dmp

Filesize
184KB

Download
memory/756-117-0x0000000002B30000-0x0000000002B36000-memory.dmp

Filesize
24KB

Download