dridex | 8863ae71160f52b8fbd8b89f48097d9c6108df0bd7005999344b8dee06285708

Analysis

max time kernel
125s
max time network
127s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 15:35

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General

Target
8863ae71160f52b8fbd8b89f48097d9c6108df0bd7005999344b8dee06285708.dll
Size 188KB
Sample210224-pscaazerk6
SHA256 8863ae71160f52b8fbd8b89f48097d9c6108df0bd7005999344b8dee06285708
MD5 0bb558f184705117729f9ae4a1e81902
SHA1 b522ec2f1b4391a5b00916893fc7c8b7006685b1
SHA512 8ea7e472881edd0dfa853523dcce331eb71ac3d3d6e6c588cd15ace9c6c3744bb5da95b1946825b953a9f366b97c15bd12cd836bca42d0772b0396f38196334b
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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/1976-5-0x0000000074A10000-0x0000000074A41000-memory.dmp	dridex_ldr
behavioral1/memory/1976-7-0x0000000074A10000-0x0000000074A2F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1976	rundll32.exe
8	1976	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 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25
PID 1596 wrote to memory of 1976	1596	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8863ae71160f52b8fbd8b89f48097d9c6108df0bd7005999344b8dee06285708.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8863ae71160f52b8fbd8b89f48097d9c6108df0bd7005999344b8dee06285708.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1976

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/1516-8-0x000007FEF7540000-0x000007FEF77BA000-memory.dmp

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memory/1976-3-0x0000000075781000-0x0000000075783000-memory.dmp

Download

memory/1976-4-0x00000000746A0000-0x0000000074843000-memory.dmp

Download

memory/1976-5-0x0000000074A10000-0x0000000074A41000-memory.dmp

Download

memory/1976-6-0x00000000000E0000-0x00000000000E6000-memory.dmp

Download

memory/1976-7-0x0000000074A10000-0x0000000074A2F000-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