dridex | 81d67fb4c70339fd1bc8205368a946e1ed62fc88fad630c67bc8c7a667ef8877

Analysis

max time kernel
35s
max time network
43s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:17

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General

Target

81d67fb4c70339fd1bc8205368a946e1ed62fc88fad630c67bc8c7a667ef8877.dll
Size

154KB
MD5

6e34d9eb6a3849bbb1d8677301c2b6bd
SHA1

e8803c64169c0243501b03cb7085fa14743130d1
SHA256

81d67fb4c70339fd1bc8205368a946e1ed62fc88fad630c67bc8c7a667ef8877
SHA512

361869ab8fd3609c335d4f63ff9d686ad488481b3abcd25e4ea4c1e7d7cbc5d2bb8a2470ef886a6677bec07bff5db0c8308685f7a2075909e7ae842c9021edc8

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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/3952-115-0x0000000074380000-0x00000000743AD000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3904 wrote to memory of 3952	3904	rundll32.exe	rundll32.exe
PID 3904 wrote to memory of 3952	3904	rundll32.exe	rundll32.exe
PID 3904 wrote to memory of 3952	3904	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\81d67fb4c70339fd1bc8205368a946e1ed62fc88fad630c67bc8c7a667ef8877.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3904

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\81d67fb4c70339fd1bc8205368a946e1ed62fc88fad630c67bc8c7a667ef8877.dll,#1
2⤵
- Checks whether UAC is enabled
PID:3952

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/3952-114-0x0000000000000000-mapping.dmp

Download
memory/3952-115-0x0000000074380000-0x00000000743AD000-memory.dmp

Filesize
180KB

Download
memory/3952-117-0x0000000002FC0000-0x000000000310A000-memory.dmp

Filesize
1.3MB

Download