dridex | 39b77cdaa39b520a1f3ce29c863653ca4b6827a4593bffd6ef874e872729df7f

Analysis

max time kernel
77s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2024, 04:13

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General

Target

JaffaCakes118_39b77cdaa39b520a1f3ce29c863653ca4b6827a4593bffd6ef874e872729df7f.dll
Size

204KB
MD5

341020170d7804f5469ac945e8527d2a
SHA1

9526c6704b5a2e06b51924040aa804d49a053e7a
SHA256

39b77cdaa39b520a1f3ce29c863653ca4b6827a4593bffd6ef874e872729df7f
SHA512

ec940256bfec167450f467c6b51ab29d673ce86b772ee78fbd0e7dd5325221c9586bc713d030b96f4172e79d89a18ed0d09678a8791e83d77e25f51c1da6b2da
SSDEEP

3072:F6FOf6h8i6pdDPvaaeEGObTS/HaoGoK9kN+Jcr9bhrFKL3fJpwZ:FZuX6pEaeEDheWa+Jc9bhorfTw

Score

10^/10

dridex 40111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

45.58.56.12:443

162.241.54.59:6601

51.91.76.89:2303

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/440-0-0x0000000074F40000-0x0000000074F75000-memory.dmp	dridex_ldr
behavioral2/memory/440-3-0x0000000074F40000-0x0000000074F75000-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 4804 wrote to memory of 440	4804	rundll32.exe	82
PID 4804 wrote to memory of 440	4804	rundll32.exe	82
PID 4804 wrote to memory of 440	4804	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b77cdaa39b520a1f3ce29c863653ca4b6827a4593bffd6ef874e872729df7f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_39b77cdaa39b520a1f3ce29c863653ca4b6827a4593bffd6ef874e872729df7f.dll,#1
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:440

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/440-2-0x0000000000F60000-0x0000000000F66000-memory.dmp

Filesize
24KB

Download
memory/440-0-0x0000000074F40000-0x0000000074F75000-memory.dmp

Filesize
212KB

Download
memory/440-3-0x0000000074F40000-0x0000000074F75000-memory.dmp

Filesize
212KB

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