dridex | 8aea864eebf4947969662e424215fc46da71ec23aee60fd528af9a9b51d1f562

Analysis

max time kernel
42s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 07:19

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General

Target

bcadc20c5130b87a3d197ca534170db0N.dll
Size

206KB
MD5

bcadc20c5130b87a3d197ca534170db0
SHA1

7cd53b122a40295f6d6dccc4d34604875c06f144
SHA256

8aea864eebf4947969662e424215fc46da71ec23aee60fd528af9a9b51d1f562
SHA512

b785ab86b33d626188fc182cec36fa939194d2dbf914feb38b1869aca79163bcd8e40ef46e0b5b5b2b1d19809bb13dc6c697c814985f16551cc10890d074e84e
SSDEEP

3072:Kopj6gTxmzaCEH8nFb369t9EtpiU7FZEz57GEYd4ntfrOulzQh5:tpjtUzy8nF8YN73Ez57Gz4VyWzQv

Score

10^/10

dridex 40111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

159.8.59.84:443

198.20.253.36:6601

162.144.76.184:2303

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
behavioral2/memory/408-1-0x00000000749F0000-0x0000000074A25000-memory.dmp	dridex_ldr
behavioral2/memory/408-4-0x00000000749F0000-0x0000000074A25000-memory.dmp	dridex_ldr

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 4664 wrote to memory of 408	4664	rundll32.exe	90
PID 4664 wrote to memory of 408	4664	rundll32.exe	90
PID 4664 wrote to memory of 408	4664	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcadc20c5130b87a3d197ca534170db0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcadc20c5130b87a3d197ca534170db0N.dll,#1
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:408

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4324,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8
1⤵
PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/408-0-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/408-1-0x00000000749F0000-0x0000000074A25000-memory.dmp

Filesize
212KB

Download
memory/408-3-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/408-4-0x00000000749F0000-0x0000000074A25000-memory.dmp

Filesize
212KB

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