dridex | aa68e997626373a297e4a8411d6574aa2cb5bb1f93b7e1d4a12739a998f0275c

General

Target

aa68e997626373a297e4a8411d6574aa2cb5bb1f93b7e1d4a12739a998f0275c.dll
Size

188KB
MD5

615d8f5e434db4542fa8acf87dcfa850
SHA1

6ac9470b452c5d082c61a02228d7eafc79175162
SHA256

aa68e997626373a297e4a8411d6574aa2cb5bb1f93b7e1d4a12739a998f0275c
SHA512

8237033399330bee8c51e4ff6a2633445353eed12f6c80462b32c56033968376c4626e508796210cc2b38c187d36d4b83758e72d416aca5ac0c831dae129beaa

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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

Processes:

resource	yara_rule
behavioral1/memory/1956-5-0x0000000074680000-0x00000000746B1000-memory.dmp	dridex_ldr
behavioral1/memory/1956-7-0x0000000074680000-0x000000007469F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1956 rundll32.exe
8 1956 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

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
6	1956	rundll32.exe
8	1956	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe
PID 532 wrote to memory of 1956	532	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa68e997626373a297e4a8411d6574aa2cb5bb1f93b7e1d4a12739a998f0275c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:532

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa68e997626373a297e4a8411d6574aa2cb5bb1f93b7e1d4a12739a998f0275c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1416-8-0x000007FEF7040000-0x000007FEF72BA000-memory.dmp

Filesize
2.5MB

Download
memory/1956-2-0x0000000000000000-mapping.dmp

Download
memory/1956-3-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/1956-4-0x0000000074310000-0x00000000744B3000-memory.dmp

Filesize
1.6MB

Download
memory/1956-5-0x0000000074680000-0x00000000746B1000-memory.dmp

Filesize
196KB

Download
memory/1956-6-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/1956-7-0x0000000074680000-0x000000007469F000-memory.dmp

Filesize
124KB

Download

Analysis

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