dridex | 25a29c0c7d80fb7510d0bd474723873a641052a1183bde6e50fd72b199143c6f

Analysis

max time kernel
150s
max time network
104s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:08

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General

Target

25a29c0c7d80fb7510d0bd474723873a641052a1183bde6e50fd72b199143c6f.dll
Size

188KB
MD5

13c1ff88062e5008c445ada265b14922
SHA1

997d8707e86cd74d4316a9bc527097161d77f3d7
SHA256

25a29c0c7d80fb7510d0bd474723873a641052a1183bde6e50fd72b199143c6f
SHA512

d96c0f0f876c4f1751fcc7a147e08de584bc41f0427acd0b3729be9b87fcfa4d554533e696a705b88945e50a4b99c1089b227e8a15360f59749e408f6b4d7702

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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
behavioral2/memory/4784-3-0x0000000073730000-0x0000000073761000-memory.dmp	dridex_ldr
behavioral2/memory/4784-5-0x0000000073730000-0x000000007374F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

15 4784 rundll32.exe
17 4784 rundll32.exe
18 4784 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
15	4784	rundll32.exe
17	4784	rundll32.exe
18	4784	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4768 wrote to memory of 4784	4768	rundll32.exe	rundll32.exe
PID 4768 wrote to memory of 4784	4768	rundll32.exe	rundll32.exe
PID 4768 wrote to memory of 4784	4768	rundll32.exe	rundll32.exe

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\25a29c0c7d80fb7510d0bd474723873a641052a1183bde6e50fd72b199143c6f.dll,#1
1⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4784

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\25a29c0c7d80fb7510d0bd474723873a641052a1183bde6e50fd72b199143c6f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4768

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

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Downloads

memory/4784-2-0x0000000000000000-mapping.dmp

Download
memory/4784-3-0x0000000073730000-0x0000000073761000-memory.dmp

Filesize
196KB

Download
memory/4784-4-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/4784-5-0x0000000073730000-0x000000007374F000-memory.dmp

Filesize
124KB

Download