dridex | 044dba2cb102eb631f8bb519b483e6c5b640e2b3e542053f29949e13bb142df2

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-en-20210920
submitted
22-10-2021 16:49

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General

Target

f1j7m5.zip.dll
Size

664KB
MD5

9c2bc7ccdc66cc3dad587e05f668b9aa
SHA1

f5c7c0d639dc90aaa42933e8709269dd96effd71
SHA256

044dba2cb102eb631f8bb519b483e6c5b640e2b3e542053f29949e13bb142df2
SHA512

3c239e10680d9c08089b7da513ce1416a9f83394757566c4ff53271c3e1776c0c05fd14bc0a2caebee1cbd20427dee4069b74eef362d70511b9f990f7451ff21

Score

10^/10

dridex 10222 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10222

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

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

Processes:

rundll32.exe

flow pid process

3 1728 rundll32.exe
5 1728 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
3	1728	rundll32.exe
5	1728	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 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 1728	1704	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f1j7m5.zip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f1j7m5.zip.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1728-54-0x0000000000000000-mapping.dmp

Download
memory/1728-55-0x0000000075821000-0x0000000075823000-memory.dmp

Filesize
8KB

Download
memory/1728-56-0x0000000001D80000-0x0000000001EBC000-memory.dmp

Filesize
1.2MB

Download
memory/1728-58-0x0000000001D80000-0x0000000001EBC000-memory.dmp

Filesize
1.2MB

Download
memory/1728-59-0x0000000001D80000-0x0000000001DBD000-memory.dmp

Filesize
244KB

Download
memory/1728-60-0x0000000001D80000-0x0000000001EBC000-memory.dmp

Filesize
1.2MB

Download
memory/1728-62-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download