dridex | 4b5f0ad57214aa1b704ff71a745806780fcd5a54a1f74b01be098952d1d877cf

Analysis

max time kernel
46s
max time network
56s
platform
windows10_x64
resource
win10v20210408
submitted
21-04-2021 21:30

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General

Target

4b5f0ad57214aa1b704ff71a745806780fcd5a54a1f74b01be098952d1d877cf.dll
Size

162KB
MD5

23bff4269cd71437de6f0e65fa523e78
SHA1

fd7c403e1a070172332fe97bda0b3f8a96594bdb
SHA256

4b5f0ad57214aa1b704ff71a745806780fcd5a54a1f74b01be098952d1d877cf
SHA512

0a0c2372a475919065101d49bad58d832439249ff551b584552741d26a8862a11dca8f75685f7f89c90bbdf0feae4c65dde1fdd7f96a15adb6902792263d391a

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/1508-115-0x0000000073FB0000-0x0000000073FDE000-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 668 wrote to memory of 1508	668	rundll32.exe	rundll32.exe
PID 668 wrote to memory of 1508	668	rundll32.exe	rundll32.exe
PID 668 wrote to memory of 1508	668	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b5f0ad57214aa1b704ff71a745806780fcd5a54a1f74b01be098952d1d877cf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:668

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b5f0ad57214aa1b704ff71a745806780fcd5a54a1f74b01be098952d1d877cf.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1508

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/1508-114-0x0000000000000000-mapping.dmp

Download
memory/1508-115-0x0000000073FB0000-0x0000000073FDE000-memory.dmp

Filesize
184KB

Download
memory/1508-117-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

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