dridex | dd546aeee1cf6cc361af3ff6e5168fe8ec5340ce4c649535b304ed68e0390dc2

Analysis

max time kernel
29s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
06-03-2021 04:35

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General

Target

dd546aeee1cf6cc361af3ff6e5168fe8ec5340ce4c649535b304ed68e0390dc2.dll
Size

168KB
MD5

2f2ccbd57ed187247b2f9bf3402cb695
SHA1

ba6c765f5db3475914856a9b04f888582a80e7c0
SHA256

dd546aeee1cf6cc361af3ff6e5168fe8ec5340ce4c649535b304ed68e0390dc2
SHA512

8c87c5aa7a89c4f90fdaba01d3f9c65fe1507752f6fdf9372a9ba859f69c812d6ecbe4b4dfcc8375669e5a147a4fc8f2a61bc3c06063a73c2a5238f79f53e958

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

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/796-3-0x0000000073DE0000-0x0000000073E0C000-memory.dmp	dridex_ldr
behavioral2/memory/796-5-0x0000000073DE0000-0x0000000073DFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

14 796 rundll32.exe
16 796 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
14	796	rundll32.exe
16	796	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 412 wrote to memory of 796	412	rundll32.exe	rundll32.exe
PID 412 wrote to memory of 796	412	rundll32.exe	rundll32.exe
PID 412 wrote to memory of 796	412	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd546aeee1cf6cc361af3ff6e5168fe8ec5340ce4c649535b304ed68e0390dc2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:412

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd546aeee1cf6cc361af3ff6e5168fe8ec5340ce4c649535b304ed68e0390dc2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:796

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/796-2-0x0000000000000000-mapping.dmp

Download
memory/796-3-0x0000000073DE0000-0x0000000073E0C000-memory.dmp

Filesize
176KB

Download
memory/796-4-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/796-5-0x0000000073DE0000-0x0000000073DFF000-memory.dmp

Filesize
124KB

Download