dridex | 9c3e327c612a7837cb64f76e343f08bf572dced5dbc663f2efcc4e4c9d4eb13c

Analysis

max time kernel
150s
max time network
139s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 21:05

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General

Target

9c3e327c612a7837cb64f76e343f08bf572dced5dbc663f2efcc4e4c9d4eb13c.dll
Size

196KB
MD5

255fbf3507a9f3683cd2f2cce7f239ea
SHA1

6ab18898a66be59f9fe4c1309f4945d9220dff1b
SHA256

9c3e327c612a7837cb64f76e343f08bf572dced5dbc663f2efcc4e4c9d4eb13c
SHA512

f096c15b23ad15349dfdeebb1f7d84bf7584b0b39ff78806ba2b90e58f62493fb986d1f5dbde9d50f59171c7d60d8b6f6d53358187f020e87ccb440b917449cc

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/2188-3-0x0000000074000000-0x0000000074033000-memory.dmp	dridex_ldr
behavioral2/memory/2188-5-0x0000000074000000-0x000000007401F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

14 2188 rundll32.exe
16 2188 rundll32.exe
17 2188 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	2188	rundll32.exe
16	2188	rundll32.exe
17	2188	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 3928 wrote to memory of 2188	3928	rundll32.exe	rundll32.exe
PID 3928 wrote to memory of 2188	3928	rundll32.exe	rundll32.exe
PID 3928 wrote to memory of 2188	3928	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c3e327c612a7837cb64f76e343f08bf572dced5dbc663f2efcc4e4c9d4eb13c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3928

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c3e327c612a7837cb64f76e343f08bf572dced5dbc663f2efcc4e4c9d4eb13c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2188

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/2188-2-0x0000000000000000-mapping.dmp

Download
memory/2188-3-0x0000000074000000-0x0000000074033000-memory.dmp

Filesize
204KB

Download
memory/2188-4-0x0000000002A50000-0x0000000002A56000-memory.dmp

Filesize
24KB

Download
memory/2188-5-0x0000000074000000-0x000000007401F000-memory.dmp

Filesize
124KB

Download