dridex | 547e81ee477ae73f30b4435bfa093d48082a0edfa3186a0e4af2eeab60b8d8e0

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26/07/2024, 03:18

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General

Target

547e81ee477ae73f30b4435bfa093d48082a0edfa3186a0e4af2eeab60b8d8e0.dll
Size

184KB
MD5

d34090815345e28dd3a62aa3872e472c
SHA1

abea10f0071e1f3785b16c55826c544b157ffe79
SHA256

547e81ee477ae73f30b4435bfa093d48082a0edfa3186a0e4af2eeab60b8d8e0
SHA512

34739649a44dc7f2a0cca1ce07aecbbc3b4b5a75117572cdef2708eac3f75a74d0ec6ee0888fb42e8dd215a0179b15cb612819cf4fba4615dc47653445a324f5
SSDEEP

3072:sZ/Aq5HJv6rBXHdH1iF3P74buGdSg4GeLfqMsnwXB:sbRQBXHtq3PUbt3te7Bsn

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

162.13.114.59:443

70.39.99.196:8172

37.187.115.122:6601

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
behavioral1/memory/2644-0-0x0000000074660000-0x0000000074690000-memory.dmp	dridex_ldr
behavioral1/memory/2644-2-0x0000000074660000-0x0000000074690000-memory.dmp	dridex_ldr
behavioral1/memory/2644-6-0x0000000074660000-0x0000000074690000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	2644	rundll32.exe
5	2644	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 7 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30
PID 2260 wrote to memory of 2644	2260	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\547e81ee477ae73f30b4435bfa093d48082a0edfa3186a0e4af2eeab60b8d8e0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\547e81ee477ae73f30b4435bfa093d48082a0edfa3186a0e4af2eeab60b8d8e0.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  PID:2644

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/2644-0-0x0000000074660000-0x0000000074690000-memory.dmp

Filesize
192KB

Download
memory/2644-1-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/2644-2-0x0000000074660000-0x0000000074690000-memory.dmp

Filesize
192KB

Download
memory/2644-6-0x0000000074660000-0x0000000074690000-memory.dmp

Filesize
192KB

Download