dridex | b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a

Analysis

max time kernel
24s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:05

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General

Target

b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll
Size

188KB
MD5

b9b9bd31e348b153eb5d524a2d6630b3
SHA1

a9a3d5041699ab1f944edeeacd136440aa1406f9
SHA256

b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a
SHA512

0a15df83599ad3099d95b8eccf518db54114a479c92d5916da8de50010f9a6afff00a9167787818f21c074b7963df50c0b4fa504a78170d09a50eb11dc8b5fc9

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/4728-3-0x0000000074400000-0x0000000074431000-memory.dmp	dridex_ldr
behavioral2/memory/4728-5-0x0000000074400000-0x000000007441F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

19 4728 rundll32.exe
21 4728 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
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

flow	pid	process
19	4728	rundll32.exe
21	4728	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 4712 wrote to memory of 4728	4712	rundll32.exe	rundll32.exe
PID 4712 wrote to memory of 4728	4712	rundll32.exe	rundll32.exe
PID 4712 wrote to memory of 4728	4712	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4712

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4728-2-0x0000000000000000-mapping.dmp

Download
memory/4728-3-0x0000000074400000-0x0000000074431000-memory.dmp

Filesize
196KB

Download
memory/4728-4-0x0000000002BA0000-0x0000000002BA6000-memory.dmp

Filesize
24KB

Download
memory/4728-5-0x0000000074400000-0x000000007441F000-memory.dmp

Filesize
124KB

Download