dridex | 4e8dff1283b2a4b1def208ba37e7cd1ff2b9392dc267eac8ae99e5277a9c73a2

Analysis

max time kernel
119s
max time network
140s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:08

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General

Target

4e8dff1283b2a4b1def208ba37e7cd1ff2b9392dc267eac8ae99e5277a9c73a2.dll
Size

188KB
MD5

9a9fa28e95c756676c167a9003b7c83c
SHA1

d2d965c096c5644ac7e5f3d0f1b5a03f69e3b7c6
SHA256

4e8dff1283b2a4b1def208ba37e7cd1ff2b9392dc267eac8ae99e5277a9c73a2
SHA512

bde0c8b9df4aea86e58c9bc950963386826fd5b0329ab04e75a02b3b31e524a1d115600175adf3cdcf86c05691b2dfccec5faa3c8c6858c81db1e3bc001786e1

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/4776-3-0x0000000073890000-0x00000000738C1000-memory.dmp	dridex_ldr
behavioral2/memory/4776-5-0x0000000073890000-0x00000000738AF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

13 4776 rundll32.exe
15 4776 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	4776	rundll32.exe
15	4776	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 4692 wrote to memory of 4776	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4776	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4776	4692	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4e8dff1283b2a4b1def208ba37e7cd1ff2b9392dc267eac8ae99e5277a9c73a2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4692

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4e8dff1283b2a4b1def208ba37e7cd1ff2b9392dc267eac8ae99e5277a9c73a2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4776

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/4776-2-0x0000000000000000-mapping.dmp

Download
memory/4776-3-0x0000000073890000-0x00000000738C1000-memory.dmp

Filesize
196KB

Download
memory/4776-4-0x0000000002E80000-0x0000000002E86000-memory.dmp

Filesize
24KB

Download
memory/4776-5-0x0000000073890000-0x00000000738AF000-memory.dmp

Filesize
124KB

Download