dridex | 0934452ffd931838dbebc97b6dd3f7c395551e23e54b679fd0700c15367e2b1c

Analysis

max time kernel
26s
max time network
125s
platform
windows10_x64
resource
win10v20210410
submitted
19-04-2021 16:21

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General

Target

0934452ffd931838dbebc97b6dd3f7c395551e23e54b679fd0700c15367e2b1c.dll
Size

639KB
MD5

b950706dc9120d8b5c8f94478d7a87ec
SHA1

7565f8e61421ef2ab1554f8570075fb1c12ed6f5
SHA256

0934452ffd931838dbebc97b6dd3f7c395551e23e54b679fd0700c15367e2b1c
SHA512

29a7f20ea678f91eee476764c1a5fc3fc92c8f9caaaa46f86a38f24aaa551d66d17ce8482a380ddf9e49b2e06bdda3abaa609e627aed49d6d2b49bef0e42c2ea

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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/3600-116-0x0000000073AD0000-0x0000000073B93000-memory.dmp	dridex_ldr
behavioral2/memory/3600-115-0x0000000073AD0000-0x0000000073B0D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

17 3600 rundll32.exe
19 3600 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
17	3600	rundll32.exe
19	3600	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 3904 wrote to memory of 3600	3904	rundll32.exe	rundll32.exe
PID 3904 wrote to memory of 3600	3904	rundll32.exe	rundll32.exe
PID 3904 wrote to memory of 3600	3904	rundll32.exe	rundll32.exe

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0934452ffd931838dbebc97b6dd3f7c395551e23e54b679fd0700c15367e2b1c.dll,#1
1⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3600

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0934452ffd931838dbebc97b6dd3f7c395551e23e54b679fd0700c15367e2b1c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3904

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

Replay Monitor

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Downloads

memory/3600-114-0x0000000000000000-mapping.dmp

Download
memory/3600-116-0x0000000073AD0000-0x0000000073B93000-memory.dmp

Filesize
780KB

Download
memory/3600-115-0x0000000073AD0000-0x0000000073B0D000-memory.dmp

Filesize
244KB

Download
memory/3600-179-0x0000000002F80000-0x0000000002F81000-memory.dmp

Filesize
4KB

Download