dridex | 72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8

Analysis

max time kernel
92s
max time network
140s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:06

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General

Target

72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll
Size

188KB
MD5

8ea6fec39a1e0414628216a5817c2ec6
SHA1

c7a171ad799246c457ca2f355168515af287bd26
SHA256

72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8
SHA512

9f5568365de1c1132b213e036e128167a21ddf98ab6bd5c5dcc90fb1ae0ac7e90e18fb5059d8bb5c26a334269a8ea5178d37ed15d9445b84e98c292466da5f5f

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/3988-3-0x00000000741B0000-0x00000000741E1000-memory.dmp	dridex_ldr
behavioral2/memory/3988-5-0x00000000741B0000-0x00000000741CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 3988 rundll32.exe
18 3988 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
16	3988	rundll32.exe
18	3988	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 528 wrote to memory of 3988	528	rundll32.exe	rundll32.exe
PID 528 wrote to memory of 3988	528	rundll32.exe	rundll32.exe
PID 528 wrote to memory of 3988	528	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:528

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3988

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/3988-2-0x0000000000000000-mapping.dmp

Download
memory/3988-3-0x00000000741B0000-0x00000000741E1000-memory.dmp

Filesize
196KB

Download
memory/3988-4-0x0000000000940000-0x0000000000946000-memory.dmp

Filesize
24KB

Download
memory/3988-5-0x00000000741B0000-0x00000000741CF000-memory.dmp

Filesize
124KB

Download