dridex | 55d3d0cb0ea0f1d16e4b6178bd7ed1846cbbe4bfaa5d63eddb2faa14267d7ba6

Analysis

max time kernel
94s
max time network
96s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:09

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General

Target

55d3d0cb0ea0f1d16e4b6178bd7ed1846cbbe4bfaa5d63eddb2faa14267d7ba6.dll
Size

157KB
MD5

381667203f0ee97c2021c8f54e0b8c90
SHA1

9f823bab451beed748330656de66e0f6a455efb3
SHA256

55d3d0cb0ea0f1d16e4b6178bd7ed1846cbbe4bfaa5d63eddb2faa14267d7ba6
SHA512

df898267e0fafa0d3eeb4299e66d96a217c3aedf90014bef123cca7da73ebd80d78ac9deacf303b904f46be5b640e916a53fa3bf12d1377317709b0f1939a6e4

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

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/496-115-0x0000000074300000-0x000000007432D000-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 500 wrote to memory of 496	500	rundll32.exe	rundll32.exe
PID 500 wrote to memory of 496	500	rundll32.exe	rundll32.exe
PID 500 wrote to memory of 496	500	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55d3d0cb0ea0f1d16e4b6178bd7ed1846cbbe4bfaa5d63eddb2faa14267d7ba6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:500

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55d3d0cb0ea0f1d16e4b6178bd7ed1846cbbe4bfaa5d63eddb2faa14267d7ba6.dll,#1
2⤵
- Checks whether UAC is enabled
PID:496

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/496-114-0x0000000000000000-mapping.dmp

Download
memory/496-115-0x0000000074300000-0x000000007432D000-memory.dmp

Filesize
180KB

Download
memory/496-117-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download