dridex | d4759d6e9e394b9186056684b848191bd730515d1d17c2451232020b8f0b6190

Analysis

max time kernel
40s
max time network
48s
platform
windows10_x64
resource
win10v20201028
submitted
03-04-2021 17:11

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General

Target

d4759d6e9e394b9186056684b848191bd730515d1d17c2451232020b8f0b6190.dll
Size

196KB
MD5

e79903aec61196b787831801b83b8462
SHA1

c36845669d28c2fc4d0d5ab1ce45b5c946368db2
SHA256

d4759d6e9e394b9186056684b848191bd730515d1d17c2451232020b8f0b6190
SHA512

986250263d169e2fa46cda103eaecf3d26b562c1f8c366be6025efe3606ffd4759171e2e48108461f1f771c3585027a0ee6f1127147441d5397310e0f5fb305b

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/1232-3-0x00000000736F0000-0x0000000073723000-memory.dmp	dridex_ldr
behavioral1/memory/1232-5-0x00000000736F0000-0x000000007370F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

8 1232 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	1232	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 1232	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1232	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1232	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4759d6e9e394b9186056684b848191bd730515d1d17c2451232020b8f0b6190.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4759d6e9e394b9186056684b848191bd730515d1d17c2451232020b8f0b6190.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1232

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/1232-2-0x0000000000000000-mapping.dmp

Download
memory/1232-3-0x00000000736F0000-0x0000000073723000-memory.dmp

Filesize
204KB

Download
memory/1232-4-0x0000000003320000-0x0000000003326000-memory.dmp

Filesize
24KB

Download
memory/1232-5-0x00000000736F0000-0x000000007370F000-memory.dmp

Filesize
124KB

Download