dridex | 8521e047f78ccf64777d40e44fb86a95f900e0ed594bb4f01cc6802ff412c536

Analysis

max time kernel
30s
max time network
34s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
04-07-2023 14:07

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General

Target

se12y5vmexe.dll
Size

311KB
MD5

7750ba949e4b090260827a4d8be63efc
SHA1

ee0e268bfa0e49591dcf77f32d7da94515d03c82
SHA256

8521e047f78ccf64777d40e44fb86a95f900e0ed594bb4f01cc6802ff412c536
SHA512

464c3ac243bb8b3bad6419d10d5c9112dbb658e13256b722325bb42bcb11c464192683cb814568ecb431bf28aa3b58cbd7061f8c273b5ee3ac700948876eb315
SSDEEP

6144:WH9O040SSrnmrwc4oU2FmrEaoGAC+Y5H2V3B918juwN:i9O02Srnh0qEJC+Y218jdN

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

77.220.64.37:443

80.86.91.27:3308

5.100.228.233:3389

46.105.131.65:1512

rc4.plain

Signatures

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
2	800	rundll32.exe
4	800	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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27
PID 1700 wrote to memory of 800	1700	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\se12y5vmexe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\se12y5vmexe.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/800-54-0x00000000001E0000-0x000000000021D000-memory.dmp

Filesize
244KB

Download
memory/800-55-0x00000000002C0000-0x00000000002FD000-memory.dmp

Filesize
244KB

Download
memory/800-56-0x00000000002C0000-0x00000000002FD000-memory.dmp

Filesize
244KB

Download