dridex | 647dc37a153a595cb25a82860396a93d6a46d3946902050a0a809833d9941a7b

Analysis

max time kernel
30s
max time network
142s
platform
windows10_x64
resource
win10v20210408
submitted
24-06-2021 12:12

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General

Target

647dc37a153a595cb25a82860396a93d6a46d3946902050a0a809833d9941a7b.dll
Size

196KB
MD5

3bd0d6ac0accdc2b594fa935bba200c6
SHA1

15c8bc14fa698cb4caf4835068a0ef79d7207ccc
SHA256

647dc37a153a595cb25a82860396a93d6a46d3946902050a0a809833d9941a7b
SHA512

a113da9b244ea37a510b6fc7357f325716c77a810c61ef2666dbf1bd7f3d87e97dbfc7db0c1d2feb775231d8df089dcc9c02e59c40bfb8aae7ca5554dbf40a3f

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/412-115-0x0000000074440000-0x0000000074473000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

13 412 rundll32.exe
15 412 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
13	412	rundll32.exe
15	412	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 644 wrote to memory of 412	644	rundll32.exe	rundll32.exe
PID 644 wrote to memory of 412	644	rundll32.exe	rundll32.exe
PID 644 wrote to memory of 412	644	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\647dc37a153a595cb25a82860396a93d6a46d3946902050a0a809833d9941a7b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:644

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\647dc37a153a595cb25a82860396a93d6a46d3946902050a0a809833d9941a7b.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:412

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/412-114-0x0000000000000000-mapping.dmp

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memory/412-115-0x0000000074440000-0x0000000074473000-memory.dmp

Filesize
204KB

Download
memory/412-117-0x0000000000940000-0x0000000000946000-memory.dmp

Filesize
24KB

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