dridex | 88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31

Analysis

max time kernel
118s
max time network
117s
platform
windows7_x64
resource
win7-en-20210920
submitted
13-10-2021 13:43

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General

Target

5a5bbd8c04147c15575a07e24bdef22e.dll
Size

604KB
MD5

5a5bbd8c04147c15575a07e24bdef22e
SHA1

e4506ef09698fb678f9e11190723499e0ee3b0a7
SHA256

88a94091ec39cf0fcb60f326e81f2a12ac40c6f41072f04dd0088d9c435e2d31
SHA512

11eeabbec6979fadd57d7c8834574b929abdf671d418044042dae8f2e0a24ebeb68a5876eb6394b720c5ae8858792ea8515926d13e1cf4b5a3bd390caabd818c

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

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 1788 rundll32.exe
6 1788 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	1788	rundll32.exe
6	1788	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 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1788	2040	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a5bbd8c04147c15575a07e24bdef22e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5a5bbd8c04147c15575a07e24bdef22e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1788

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/1788-54-0x0000000000000000-mapping.dmp

Download
memory/1788-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1788-56-0x0000000000980000-0x0000000000AB0000-memory.dmp

Filesize
1.2MB

Download
memory/1788-58-0x0000000000980000-0x0000000000AB0000-memory.dmp

Filesize
1.2MB

Download
memory/1788-59-0x0000000000980000-0x00000000009BD000-memory.dmp

Filesize
244KB

Download
memory/1788-60-0x0000000000980000-0x0000000000AB0000-memory.dmp

Filesize
1.2MB

Download
memory/1788-62-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download