dridex | 5729bf7cc2a6566ba2a70c9324718cef806ee892914dfc422f9ff3dc2a420fcd

Analysis

max time kernel
31s
max time network
142s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:32

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General

Target
5729bf7cc2a6566ba2a70c9324718cef806ee892914dfc422f9ff3dc2a420fcd.dll
Size 188KB
Sample210224-hr8rwrtmms
SHA256 5729bf7cc2a6566ba2a70c9324718cef806ee892914dfc422f9ff3dc2a420fcd
MD5 42c66afb604c668d5f3c7ab485a5dbc1
SHA1 b166a127a52355323cda18e0a685fa03ccf5373f
SHA512 4156a423ae929398b65db0bdf49e3cdfe3aa7ca1d6892f14b1f32022b8b31c11fa4a6a4ce7ed2c6dee315f5ce14c9eb890c2c06ff0c95bc97fb2a82d3ef5afdc
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
behavioral2/memory/1768-3-0x00000000738C0000-0x00000000738F1000-memory.dmp	dridex_ldr
behavioral2/memory/1768-5-0x00000000738C0000-0x00000000738DF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
22	1768	rundll32.exe
24	1768	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 1048 wrote to memory of 1768	1048	rundll32.exe	70
PID 1048 wrote to memory of 1768	1048	rundll32.exe	70
PID 1048 wrote to memory of 1768	1048	rundll32.exe	70

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5729bf7cc2a6566ba2a70c9324718cef806ee892914dfc422f9ff3dc2a420fcd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5729bf7cc2a6566ba2a70c9324718cef806ee892914dfc422f9ff3dc2a420fcd.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1768

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/1768-3-0x00000000738C0000-0x00000000738F1000-memory.dmp

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memory/1768-4-0x0000000004860000-0x0000000004866000-memory.dmp

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memory/1768-5-0x00000000738C0000-0x00000000738DF000-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