dridex | 495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b

Analysis

max time kernel
40s
max time network
49s
platform
windows10_x64
resource
win10v20201028
submitted
03-04-2021 11:01

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General

Target

495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll
Size

196KB
MD5

75781964ef3bf602e6ce0981a932436c
SHA1

b96733ee54997843a50fb72815af7bf7a45839b5
SHA256

495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b
SHA512

58a2f0ead0f2d88ed9e805bb0f653aaf82e891f7559075291c2daa6c55ceb52fc4fba34a275ca4c104b33a1c4eed4f5d1fd2eb4d75fb3b0141e0eb5d493570a0

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
behavioral1/memory/1604-3-0x00000000736F0000-0x0000000073723000-memory.dmp	dridex_ldr
behavioral1/memory/1604-5-0x00000000736F0000-0x000000007370F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

8 1604 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
8	1604	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 1108 wrote to memory of 1604	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1604	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1604	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1604

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/1604-2-0x0000000000000000-mapping.dmp

Download
memory/1604-3-0x00000000736F0000-0x0000000073723000-memory.dmp

Filesize
204KB

Download
memory/1604-4-0x0000000000B90000-0x0000000000B96000-memory.dmp

Filesize
24KB

Download
memory/1604-5-0x00000000736F0000-0x000000007370F000-memory.dmp

Filesize
124KB

Download