dridex | ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83

Analysis

max time kernel
61s
max time network
122s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 21:07

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General

Target

ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll
Size

196KB
MD5

0b7fbbc6c1d4c6556f9f84dfc7fce5bf
SHA1

c43a53e56e59ec892f78d6fb90fd5dc0e3d4d50c
SHA256

ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83
SHA512

3ebe524d8be14d3670f682ce6217820b0bc88b4b70c93087a5b80e3c9eb69d2b493791feb7ff927cfe24e40f5a734e09a7c33f0c05e6617a407a181750410b8c

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/4700-3-0x0000000075A50000-0x0000000075A83000-memory.dmp	dridex_ldr
behavioral2/memory/4700-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

20 4700 rundll32.exe
22 4700 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
20	4700	rundll32.exe
22	4700	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 4688 wrote to memory of 4700	4688	rundll32.exe	rundll32.exe
PID 4688 wrote to memory of 4700	4688	rundll32.exe	rundll32.exe
PID 4688 wrote to memory of 4700	4688	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4688

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ee036bd07a646a078838ad082e833d0ef8a27f46375403a829f6938401ba0c83.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4700

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/4700-2-0x0000000000000000-mapping.dmp

Download
memory/4700-3-0x0000000075A50000-0x0000000075A83000-memory.dmp

Filesize
204KB

Download
memory/4700-4-0x0000000000B10000-0x0000000000B16000-memory.dmp

Filesize
24KB

Download
memory/4700-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp

Filesize
124KB

Download