dridex | 427d7d611efe92027e258f3686824faa3f425bca6b7b048cf0c1b92a48bf28fc

Analysis

max time kernel
20s
max time network
131s
platform
windows10_x64
resource
win10v20201028
submitted
24/03/2021, 17:42

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General

Target
427d7d611efe92027e258f3686824faa3f425bca6b7b048cf0c1b92a48bf28fc.dll
Size 876KB
Sample210324-w1cacw6pse
SHA256 427d7d611efe92027e258f3686824faa3f425bca6b7b048cf0c1b92a48bf28fc
MD5 58fadd915c469488f303e446893b92c6
SHA1 3ddef702b0dfa254b6746beb8b4edca347e01492
SHA512 359947c99c7a8e4a20f28ad5fda521b2f2ffa6c29eaae9b85f6e804b004f4d04305bc5aa8ecc22351179fe6c2b7ad9aac010d44ccef6e9963325b367e2669ff1
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.192:443
103.6.213.203:6601
46.41.130.218:2303

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/4744-3-0x0000000004B81000-0x0000000004C0D000-memory.dmp	dridex_ldr
behavioral2/memory/4744-4-0x0000000004B80000-0x0000000004BBD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
17	4744	rundll32.exe
19	4744	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 4720 wrote to memory of 4744	4720	rundll32.exe	68
PID 4720 wrote to memory of 4744	4720	rundll32.exe	68
PID 4720 wrote to memory of 4744	4720	rundll32.exe	68

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\427d7d611efe92027e258f3686824faa3f425bca6b7b048cf0c1b92a48bf28fc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\427d7d611efe92027e258f3686824faa3f425bca6b7b048cf0c1b92a48bf28fc.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4744

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/4744-3-0x0000000004B81000-0x0000000004C0D000-memory.dmp

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memory/4744-4-0x0000000004B80000-0x0000000004BBD000-memory.dmp

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memory/4744-5-0x0000000001230000-0x0000000001231000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads