dridex | 8f81f6f9c4fc4e0115d8520d6ac9ae8fd6898f13b42fd4574ba9e17b5a4296a2

Analysis

max time kernel
19s
max time network
113s
platform
windows10_x64
resource
win10v20210410
submitted
24-06-2021 21:17

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General

Target

8f81f6f9c4fc4e0115d8520d6ac9ae8fd6898f13b42fd4574ba9e17b5a4296a2.dll
Size

160KB
MD5

6ad710e7cdc72cb06aa5bed3fe9517b6
SHA1

0338a063860e6ab7b8476667090511b3654b70de
SHA256

8f81f6f9c4fc4e0115d8520d6ac9ae8fd6898f13b42fd4574ba9e17b5a4296a2
SHA512

835fe13a9bd0d0c483bbccaf1e85def388abac761e683e1d1f41511f13d6130f4276a0ad4a310e73c72c727d62a39ef854d2e3f181528665341310ea1f94b1fa

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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/1856-115-0x0000000074420000-0x000000007444E000-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 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe
PID 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe
PID 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f81f6f9c4fc4e0115d8520d6ac9ae8fd6898f13b42fd4574ba9e17b5a4296a2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2388

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8f81f6f9c4fc4e0115d8520d6ac9ae8fd6898f13b42fd4574ba9e17b5a4296a2.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1856

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/1856-114-0x0000000000000000-mapping.dmp

Download
memory/1856-115-0x0000000074420000-0x000000007444E000-memory.dmp

Filesize
184KB

Download
memory/1856-117-0x0000000000F00000-0x0000000000F06000-memory.dmp

Filesize
24KB

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