dridex | 4cbff10d343ee330fc78282bd2283888fff51395f1ecf6a878046456de4fdabf

Analysis

max time kernel
34s
max time network
91s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 15:08

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General

Target
4cbff10d343ee330fc78282bd2283888fff51395f1ecf6a878046456de4fdabf.dll
Size 188KB
Sample210224-sgrcgdj9vx
SHA256 4cbff10d343ee330fc78282bd2283888fff51395f1ecf6a878046456de4fdabf
MD5 1c9d1dadac4ceb61d057f6569d969aec
SHA1 3e767c3e1fde4e731c8fae35f9743835cac955a8
SHA512 78b349d0051f1f0aa1d840688147c120cb5fe60cf3b27f129ec27ecb3dc2b0c6746ab7f62d4ded6645d315f557170d4acb167e4405d8749df6061e9ef1438296
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/1092-5-0x00000000752E0000-0x0000000075311000-memory.dmp	dridex_ldr
behavioral1/memory/1092-7-0x00000000752E0000-0x00000000752FF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	1092	rundll32.exe
7	1092	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 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22
PID 1012 wrote to memory of 1092	1012	rundll32.exe	22

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4cbff10d343ee330fc78282bd2283888fff51395f1ecf6a878046456de4fdabf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4cbff10d343ee330fc78282bd2283888fff51395f1ecf6a878046456de4fdabf.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1092

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/876-8-0x000007FEF7D90000-0x000007FEF800A000-memory.dmp

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memory/1092-3-0x00000000761E1000-0x00000000761E3000-memory.dmp

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memory/1092-4-0x0000000074F70000-0x0000000075113000-memory.dmp

Download

memory/1092-5-0x00000000752E0000-0x0000000075311000-memory.dmp

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memory/1092-6-0x00000000001F0000-0x00000000001F6000-memory.dmp

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memory/1092-7-0x00000000752E0000-0x00000000752FF000-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