dridex | e7f53e5e1724d90b85d4d51c13eaf10d163573d3b74f470c8f10f483a121e4c4

Analysis

max time kernel
110s
max time network
47s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 06:27

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General

Target

e594ea701d1147da0c765e715acfecf0N.dll
Size

236KB
MD5

e594ea701d1147da0c765e715acfecf0
SHA1

0d0ce2f2496925a1decfc0c94faa0cf547408b86
SHA256

e7f53e5e1724d90b85d4d51c13eaf10d163573d3b74f470c8f10f483a121e4c4
SHA512

5b245d758ebf4e02346f742f78b8b52b570267b3bca0eb6461024523a6599ac136c81cc185ed16d7866e8b62aeb946d690ae4d59bc6cfe276ae1216895cdf612
SSDEEP

6144:04V3yyQTz8ITeRDZSw3D2Fsd1u/6mv5/dC:0ciyQTdT+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
behavioral1/memory/1020-1-0x0000000075020000-0x000000007505D000-memory.dmp	dridex_ldr
behavioral1/memory/1020-2-0x0000000075020000-0x000000007505D000-memory.dmp	dridex_ldr
behavioral1/memory/1020-7-0x0000000075020000-0x000000007505D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow	pid	Process
3	1020	rundll32.exe
7	1020	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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30
PID 3036 wrote to memory of 1020	3036	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e594ea701d1147da0c765e715acfecf0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e594ea701d1147da0c765e715acfecf0N.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:1020

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/1020-0-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1020-1-0x0000000075020000-0x000000007505D000-memory.dmp

Filesize
244KB

Download
memory/1020-2-0x0000000075020000-0x000000007505D000-memory.dmp

Filesize
244KB

Download
memory/1020-3-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1020-7-0x0000000075020000-0x000000007505D000-memory.dmp

Filesize
244KB

Download