dridex | 81228bad32d7767ac375af937eacf20fadf365779697fcaaf115401e5f0eb8b3

Analysis

max time kernel
110s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 19:09

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General

Target

d98a97a19e00e699b44f4d50e9724ed0N.dll
Size

236KB
MD5

d98a97a19e00e699b44f4d50e9724ed0
SHA1

0255d955604787ff6da7ec34c498eee2c15ea587
SHA256

81228bad32d7767ac375af937eacf20fadf365779697fcaaf115401e5f0eb8b3
SHA512

2ef200a5e7cc5be247c7edf5a6b9a212b2d447e4af68ce1ec0e0b15285ffb147eb317c3fa26c5472ab47720727fd4860ce23af4bdc281141f635123b79d9a329
SSDEEP

6144:Q4V3yyQTz8ITeRDZSw3D2Fsd1u/6mv5/dC:QciyQTdT+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

resource	yara_rule
behavioral2/memory/1992-1-0x00000000756A0000-0x00000000756DD000-memory.dmp	dridex_ldr
behavioral2/memory/1992-4-0x00000000756A0000-0x00000000756DD000-memory.dmp	dridex_ldr
behavioral2/memory/1992-6-0x00000000756A0000-0x00000000756DD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

flow	pid	Process
18	1992	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

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

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 1992	5056	rundll32.exe	83
PID 5056 wrote to memory of 1992	5056	rundll32.exe	83
PID 5056 wrote to memory of 1992	5056	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d98a97a19e00e699b44f4d50e9724ed0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d98a97a19e00e699b44f4d50e9724ed0N.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:1992

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

Replay Monitor

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Downloads

memory/1992-0-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x00000000756A0000-0x00000000756DD000-memory.dmp

Filesize
244KB

Download
memory/1992-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/1992-4-0x00000000756A0000-0x00000000756DD000-memory.dmp

Filesize
244KB

Download
memory/1992-6-0x00000000756A0000-0x00000000756DD000-memory.dmp

Filesize
244KB

Download