dridex | a4d8857621aeecb3410604552f04dbc777f4691eae5161c584b503ecca5b4c82

Analysis

max time kernel
19s
max time network
125s
platform
windows10_x64
resource
win10v20210410
submitted
24-06-2021 22:36

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General

Target

a4d8857621aeecb3410604552f04dbc777f4691eae5161c584b503ecca5b4c82.dll
Size

158KB
MD5

e077359efafebebaf229ed790c8e3783
SHA1

c93d6ef5cf9fce040754323dc8bf4edc9ec3a074
SHA256

a4d8857621aeecb3410604552f04dbc777f4691eae5161c584b503ecca5b4c82
SHA512

0106ecc8c5a509f7ae0dcb521ac3476da4033ce6bdfdf74a6f50cf34a2cbc23609eb204b32d33d5330e2db643308b5992d656e31fb258018950ae2a8c2243bef

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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\a4d8857621aeecb3410604552f04dbc777f4691eae5161c584b503ecca5b4c82.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3904

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4d8857621aeecb3410604552f04dbc777f4691eae5161c584b503ecca5b4c82.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/3952-117-0x0000000000B60000-0x0000000000B66000-memory.dmp

Filesize
24KB

Download