dridex | 4edb85bc25603bb33ddfec00d3258176ea15a736b566b01c298269333bf2b445

Analysis

max time kernel
29s
max time network
137s
platform
windows10_x64
resource
win10v20201028
submitted
31/03/2021, 16:22

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General

Target
4edb85bc25603bb33ddfec00d3258176ea15a736b566b01c298269333bf2b445.dll
Size 377KB
Sample210331-ykgnspyz42
SHA256 4edb85bc25603bb33ddfec00d3258176ea15a736b566b01c298269333bf2b445
MD5 3166c9e87dda1f896a7e2a1894ba279d
SHA1 9457528c9fe39e48f7cc5b7b0b67881bb6ec1b1a
SHA512 a0f0f2e69f70ae926de1701df57ab14ad40a4b1d8e15c8e00fb84adec14eb540d66ed191ddad3b4816e2634f7c6c49be108865896083e6673cae37d9506e6961
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/4744-3-0x00000000741D0000-0x000000007420D000-memory.dmp	dridex_ldr
behavioral2/memory/4744-4-0x00000000741D0000-0x000000007420D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	4744	rundll32.exe
18	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 4640 wrote to memory of 4744	4640	rundll32.exe	71
PID 4640 wrote to memory of 4744	4640	rundll32.exe	71
PID 4640 wrote to memory of 4744	4640	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4edb85bc25603bb33ddfec00d3258176ea15a736b566b01c298269333bf2b445.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4edb85bc25603bb33ddfec00d3258176ea15a736b566b01c298269333bf2b445.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/4744-3-0x00000000741D0000-0x000000007420D000-memory.dmp

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memory/4744-4-0x00000000741D0000-0x000000007420D000-memory.dmp

Download

memory/4744-5-0x0000000000E50000-0x0000000000E51000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads