dridex | 4f135253467f0d070e905a74e66c77a9914859651f6e7f58537bbda42d622824

Analysis

max time kernel
32s
max time network
10s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 16:03

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General

Target

4f135253467f0d070e905a74e66c77a9914859651f6e7f58537bbda42d622824.dll
Size

162KB
MD5

3cd70fa2568fc7d99ff5c0e172c479db
SHA1

3b0ffd8ab489773a2be7df84817c30348f8e11bc
SHA256

4f135253467f0d070e905a74e66c77a9914859651f6e7f58537bbda42d622824
SHA512

8680ec75e6a59ae8f213b236ec395837eca3397f5ebaac48abfe73172354af3806fccf5d88f488fa4f4f030cb924b519eb6f865791214a8c9d77322c5e698e1d

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1272-62-0x0000000075330000-0x000000007535E000-memory.dmp	dridex_ldr

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

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 1272	2004	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f135253467f0d070e905a74e66c77a9914859651f6e7f58537bbda42d622824.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f135253467f0d070e905a74e66c77a9914859651f6e7f58537bbda42d622824.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1272

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1272-60-0x0000000000000000-mapping.dmp

Download
memory/1272-61-0x0000000075B31000-0x0000000075B33000-memory.dmp

Filesize
8KB

Download
memory/1272-62-0x0000000075330000-0x000000007535E000-memory.dmp

Filesize
184KB

Download
memory/1272-64-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download