dridex | dffb2b2f4681001350fb8c0a44f5ffaca7205dd4df9082c6bec3223ed83c8501

Analysis

max time kernel
135s
max time network
136s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 17:27

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General

Target

dffb2b2f4681001350fb8c0a44f5ffaca7205dd4df9082c6bec3223ed83c8501.dll
Size

162KB
MD5

478b918d9df5c12a06c1fbc90c7da1db
SHA1

7cd24bdaf7de98ff777adbf5500e89d2da6ceb88
SHA256

dffb2b2f4681001350fb8c0a44f5ffaca7205dd4df9082c6bec3223ed83c8501
SHA512

7a892fe6d2fd9d1e325a5fbf94edb730b557db319e2bc0b926a7c2f1af938671c8c30db42cac09800629a2c6cfc4c6b61a818e9e68b044b77139f671033d65cd

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/2004-62-0x0000000074D80000-0x0000000074DAE000-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 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 2004	1820	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dffb2b2f4681001350fb8c0a44f5ffaca7205dd4df9082c6bec3223ed83c8501.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dffb2b2f4681001350fb8c0a44f5ffaca7205dd4df9082c6bec3223ed83c8501.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2004

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/2004-60-0x0000000000000000-mapping.dmp

Download
memory/2004-61-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/2004-62-0x0000000074D80000-0x0000000074DAE000-memory.dmp

Filesize
184KB

Download
memory/2004-64-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download