dridex | b03b501c074694ee05545263c92c18aba7f75b2a51221ff6fda744a73cf2af84

Analysis

max time kernel
162s
max time network
177s
platform
windows7_x64
resource
win7-20220414-en
submitted
19-05-2022 02:27

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General

Target

xs05ehhb9.dll
Size

504KB
MD5

d47db68452d9fbd3e11f93f10355243e
SHA1

3f3268520315502224b9e09f47a65b7fecb8c8b8
SHA256

b03b501c074694ee05545263c92c18aba7f75b2a51221ff6fda744a73cf2af84
SHA512

7e0b44af8e01e5353ce0b714675bb1df22f1fd91bac4dc59a0485adae264720343c2490eb85a1ef5a8f6ba03b8b797b3641cfaa3bc512fa82ad74c3a9a1cb24c

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

210.65.244.166:443

178.33.183.53:7443

157.7.139.198:6601

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

3 904 rundll32.exe
5 904 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	904	rundll32.exe
5	904	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 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 904	1088	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xs05ehhb9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xs05ehhb9.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:904

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/904-54-0x0000000000000000-mapping.dmp

Download
memory/904-55-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/904-56-0x0000000000300000-0x0000000000391000-memory.dmp

Filesize
580KB

Download
memory/904-57-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/904-58-0x0000000000300000-0x0000000000391000-memory.dmp

Filesize
580KB

Download
memory/904-60-0x0000000000300000-0x0000000000391000-memory.dmp

Filesize
580KB

Download