dridex | ed24eece39db455a581606a6b6ebae2bdc90bdbec3aed974f619a3a0cd9d1431

Analysis

max time kernel
111s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 21:13

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General

Target

ce680c4bc5dbbc7653c460f304a2cc60N.dll
Size

236KB
MD5

ce680c4bc5dbbc7653c460f304a2cc60
SHA1

3ef88db9bab60462a6a2c2e1ad6c2eeca4e75351
SHA256

ed24eece39db455a581606a6b6ebae2bdc90bdbec3aed974f619a3a0cd9d1431
SHA512

ea04cb2cca9059195601293d6677a60f3e7f48edfc22e3f456ca4f7ae759b802b23cec570e8071fa92092c3f8162e8709c0a6f62de5d5e0527c6f32a2bc1ea49
SSDEEP

6144:P4V3yyQTz8ITeRDZSw3D2Fsd1u/6mv5/dC:PciyQTdT+swTgt/6c/dC

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

77.220.64.40:443

8.4.9.152:3786

185.246.87.202:3098

rc4.plain

Signatures

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

Dridex Loader 3 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/3252-0-0x0000000075670000-0x00000000756AD000-memory.dmp	dridex_ldr
behavioral2/memory/3252-3-0x0000000075670000-0x00000000756AD000-memory.dmp	dridex_ldr
behavioral2/memory/3252-5-0x0000000075670000-0x00000000756AD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

18 3252 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
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

flow	pid	process
18	3252	rundll32.exe

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

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2892 wrote to memory of 3252	2892	rundll32.exe	rundll32.exe
PID 2892 wrote to memory of 3252	2892	rundll32.exe	rundll32.exe
PID 2892 wrote to memory of 3252	2892	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce680c4bc5dbbc7653c460f304a2cc60N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce680c4bc5dbbc7653c460f304a2cc60N.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:3252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3252-0-0x0000000075670000-0x00000000756AD000-memory.dmp

Filesize
244KB

Download
memory/3252-2-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

Filesize
24KB

Download
memory/3252-3-0x0000000075670000-0x00000000756AD000-memory.dmp

Filesize
244KB

Download
memory/3252-5-0x0000000075670000-0x00000000756AD000-memory.dmp

Filesize
244KB

Download