dridex | f045bc5d0dc4890be3163fa236c403dab3d444e92fd5ddc0356dbf3f25f829af

Analysis

max time kernel
132s
max time network
134s
platform
windows10_x64
resource
win10v200722
submitted
30/09/2020, 15:30

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General

Target
cifvmc5rar.dll
Size 830KB
Sample200930-l8t4ymc2e2
SHA256 f045bc5d0dc4890be3163fa236c403dab3d444e92fd5ddc0356dbf3f25f829af
MD5 8c1c54884b90c015330ef19c0cb0a4fc
SHA1 e222675107a78e19648479a3a994f63fcc58f2a2
SHA512 bf4cbee52dfe8c7dd5ab33a8b8e121d9d9cc92b2ebf720026dc3dd4e48f16bb8a5c0970cf7a4dc18b547c3ed4632ae48b1628f46c85436d0dc947baaf886b4e3
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

146.164.126.197:443
69.16.193.166:9443
193.90.12.122:3098
157.245.103.132:14043

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/1032-1-0x00000000732F0000-0x000000007332A000-memory.dmp	dridex_ldr

Dridex Loader 'dmod' strings 1 IoCs

Detects 'dmod' strings in Dridex loader.

botnet loader

resource	yara_rule
behavioral2/memory/1032-1-0x00000000732F0000-0x000000007332A000-memory.dmp	dridex_ldr_dmod

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	1032	rundll32.exe
17	1032	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 408 wrote to memory of 1032	408	rundll32.exe	69
PID 408 wrote to memory of 1032	408	rundll32.exe	69
PID 408 wrote to memory of 1032	408	rundll32.exe	69

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cifvmc5rar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cifvmc5rar.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1032

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/1032-1-0x00000000732F0000-0x000000007332A000-memory.dmp

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