dridex | eccd9e2d19947f414025ddca3f91581672443c8c71cf745178c52a168a8e79ae

Analysis

max time kernel
44s
max time network
90s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 07:30

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General

Target
2335c8b4fd3199559da72aba36a6dee3.dll
Size 184KB
Sample210224-jfv347nc96
SHA256 eccd9e2d19947f414025ddca3f91581672443c8c71cf745178c52a168a8e79ae
MD5 2335c8b4fd3199559da72aba36a6dee3
SHA1 f5c8bd05ccdcae15ff26a42bd24fd7031574c737
SHA512 a10db6fc6f2de1c8930700e24be70ca14efd2668ad088130bd60aa6602f2f6bd0dda3d7c10fb11890f18e08412fa60c01bce79890df6182ea95ff2ec92b6644d
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

162.13.114.59:443
70.39.99.196:8172
37.187.115.122:6601

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

resource	yara_rule
behavioral1/memory/1744-4-0x0000000075130000-0x0000000075160000-memory.dmp	dridex_ldr
behavioral1/memory/1744-6-0x0000000075130000-0x000000007514F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1744	rundll32.exe
8	1744	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 7 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26
PID 548 wrote to memory of 1744	548	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2335c8b4fd3199559da72aba36a6dee3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2335c8b4fd3199559da72aba36a6dee3.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1744

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

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Downloads

memory/1252-7-0x000007FEF8800000-0x000007FEF8A7A000-memory.dmp

Download

memory/1744-3-0x0000000076451000-0x0000000076453000-memory.dmp

Download

memory/1744-4-0x0000000075130000-0x0000000075160000-memory.dmp

Download

memory/1744-5-0x00000000001B0000-0x00000000001B6000-memory.dmp

Download

memory/1744-6-0x0000000075130000-0x000000007514F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads