dridex | 930796d85a470ba941c56ae850f9f5a17cbf5ca5d724b9741bc73f8925397353

Analysis

max time kernel
21s
max time network
104s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 08:06

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General

Target

930796d85a470ba941c56ae850f9f5a17cbf5ca5d724b9741bc73f8925397353.dll
Size

196KB
MD5

e3ecdd91feb8212f43674879b0a81a2a
SHA1

30e7c63ef94654342ac654a23061930cf2d68cb8
SHA256

930796d85a470ba941c56ae850f9f5a17cbf5ca5d724b9741bc73f8925397353
SHA512

9f60f3c7d68c4d5a96fc2014510234220394a80617c076bcfa552c52992ff584266bd1a956a242418a69e167c43a72351483cf4f023ca709d83c69902a3fd1d3

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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

Processes:

resource	yara_rule
behavioral2/memory/1332-3-0x0000000073EE0000-0x0000000073F13000-memory.dmp	dridex_ldr
behavioral2/memory/1332-5-0x0000000073EE0000-0x0000000073EFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 1332 rundll32.exe
18 1332 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

Processes:

rundll32.exe

description ioc process

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

flow	pid	process
16	1332	rundll32.exe
18	1332	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1160 wrote to memory of 1332	1160	rundll32.exe	rundll32.exe
PID 1160 wrote to memory of 1332	1160	rundll32.exe	rundll32.exe
PID 1160 wrote to memory of 1332	1160	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\930796d85a470ba941c56ae850f9f5a17cbf5ca5d724b9741bc73f8925397353.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\930796d85a470ba941c56ae850f9f5a17cbf5ca5d724b9741bc73f8925397353.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1332

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

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Downloads

memory/1332-2-0x0000000000000000-mapping.dmp

Download
memory/1332-3-0x0000000073EE0000-0x0000000073F13000-memory.dmp

Filesize
204KB

Download
memory/1332-4-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1332-5-0x0000000073EE0000-0x0000000073EFF000-memory.dmp

Filesize
124KB

Download