dridex | 384d4b7890a652d938b45f877dad622d7618cbc175e38a8fff6541fbd32aea30

Analysis

max time kernel
61s
max time network
133s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:42

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General

Target

384d4b7890a652d938b45f877dad622d7618cbc175e38a8fff6541fbd32aea30.dll
Size

188KB
MD5

8fe653d7b19c7d6a15b895807cb1f9cc
SHA1

7a54efe5f414f7f71f1aa0249f38517e40348540
SHA256

384d4b7890a652d938b45f877dad622d7618cbc175e38a8fff6541fbd32aea30
SHA512

4e7999064cbff43ac22debbcc99334f842294fdf5ddd4d4e10579ea7db8f591c69921a5006abcb205eeb6487db3db70e1fc9a7c59499616d9b1e0a56b0273775

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/3000-3-0x0000000073D80000-0x0000000073DB1000-memory.dmp	dridex_ldr
behavioral2/memory/3000-5-0x0000000073D80000-0x0000000073D9F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

24 3000 rundll32.exe
26 3000 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
24	3000	rundll32.exe
26	3000	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 3564 wrote to memory of 3000	3564	rundll32.exe	rundll32.exe
PID 3564 wrote to memory of 3000	3564	rundll32.exe	rundll32.exe
PID 3564 wrote to memory of 3000	3564	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\384d4b7890a652d938b45f877dad622d7618cbc175e38a8fff6541fbd32aea30.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3564

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\384d4b7890a652d938b45f877dad622d7618cbc175e38a8fff6541fbd32aea30.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3000

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/3000-2-0x0000000000000000-mapping.dmp

Download
memory/3000-3-0x0000000073D80000-0x0000000073DB1000-memory.dmp

Filesize
196KB

Download
memory/3000-4-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download
memory/3000-5-0x0000000073D80000-0x0000000073D9F000-memory.dmp

Filesize
124KB

Download