dridex | b78b0aee4e5c072ea24d4d9d8e89c8990076fbe96ef353950b7006ea50eabfac

Analysis

max time kernel
56s
max time network
145s
platform
windows10_x64
resource
win10v20201028
submitted
31/03/2021, 16:36

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
b78b0aee4e5c072ea24d4d9d8e89c8990076fbe96ef353950b7006ea50eabfac.dll
Size 381KB
Sample210331-7mp5jljffe
SHA256 b78b0aee4e5c072ea24d4d9d8e89c8990076fbe96ef353950b7006ea50eabfac
MD5 6f3d820ee9c069a6710e743d53a9bb25
SHA1 9be6f4d6565083b165c824ea52f9e0578ead7953
SHA512 32a9fb8023309766baa46801be454b0068c23174f746d7285a088c5cc664892f3de28ed8f837a3f9d59a26c4a0fad86a665161cac2d4eb3a0aa4ae9a45e9f932
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

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

resource	yara_rule
behavioral2/memory/4848-3-0x0000000075A10000-0x0000000075A4D000-memory.dmp	dridex_ldr
behavioral2/memory/4848-4-0x0000000075A10000-0x0000000075A4D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
25	4848	rundll32.exe
27	4848	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4848	4736	rundll32.exe	55
PID 4736 wrote to memory of 4848	4736	rundll32.exe	55
PID 4736 wrote to memory of 4848	4736	rundll32.exe	55

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b78b0aee4e5c072ea24d4d9d8e89c8990076fbe96ef353950b7006ea50eabfac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b78b0aee4e5c072ea24d4d9d8e89c8990076fbe96ef353950b7006ea50eabfac.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4848-3-0x0000000075A10000-0x0000000075A4D000-memory.dmp

Download

memory/4848-4-0x0000000075A10000-0x0000000075A4D000-memory.dmp

Download

memory/4848-5-0x0000000003120000-0x0000000003121000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads