dridex | bdfe897e547c82f4b56deba11038ae6604e7459bd983c8b0409c24ffb181103a

Analysis

max time kernel
31s
max time network
110s
platform
windows10_x64
resource
win10v20210408
submitted
21-04-2021 18:43

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General

Target

bdfe897e547c82f4b56deba11038ae6604e7459bd983c8b0409c24ffb181103a.dll
Size

157KB
MD5

9df4b31d77c9d9fb3b5d9b928edbb293
SHA1

36565d80b2104560c109742347fb9a4242c8aa06
SHA256

bdfe897e547c82f4b56deba11038ae6604e7459bd983c8b0409c24ffb181103a
SHA512

1a455ec6f9c5f3623174304bd4c31d11060f3efd3f62b1bb4c2f474d1c2d5572ef7a210b80082187d69ac5e851eba0db2a9edbf890aee5c8fc891b60b7c21a03

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

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
behavioral2/memory/3104-115-0x0000000073F20000-0x0000000073F4D000-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 4068 wrote to memory of 3104	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 3104	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 3104	4068	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdfe897e547c82f4b56deba11038ae6604e7459bd983c8b0409c24ffb181103a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdfe897e547c82f4b56deba11038ae6604e7459bd983c8b0409c24ffb181103a.dll,#1
2⤵
- Checks whether UAC is enabled
PID:3104

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3104-114-0x0000000000000000-mapping.dmp

Download
memory/3104-115-0x0000000073F20000-0x0000000073F4D000-memory.dmp

Filesize
180KB

Download
memory/3104-117-0x00000000008B0000-0x00000000008B6000-memory.dmp

Filesize
24KB

Download