dridex | efb820951d6194a67ae4553da72bc94e791ecf86b1f178be6e0d57a92ce40df0

Analysis

max time kernel
129s
max time network
131s
platform
windows10_x64
resource
win10v20210408
submitted
21-04-2021 13:51

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General

Target

efb820951d6194a67ae4553da72bc94e791ecf86b1f178be6e0d57a92ce40df0.dll
Size

160KB
MD5

71d0c0eede6768c915b03935cd1c1c2a
SHA1

6fd9ef1c4055ec8114b5320f440f38c19fb6ede3
SHA256

efb820951d6194a67ae4553da72bc94e791ecf86b1f178be6e0d57a92ce40df0
SHA512

812b103a484428d2ad6e3debda37f363da3ffa26675e906aa1b25490180b83f74fd42a8a59117a2a968fb9f58632919031ab62c7b6ed0a0008a2361e3d89e929

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
behavioral2/memory/684-115-0x0000000074350000-0x000000007437E000-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 672 wrote to memory of 684	672	rundll32.exe	rundll32.exe
PID 672 wrote to memory of 684	672	rundll32.exe	rundll32.exe
PID 672 wrote to memory of 684	672	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\efb820951d6194a67ae4553da72bc94e791ecf86b1f178be6e0d57a92ce40df0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:672

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\efb820951d6194a67ae4553da72bc94e791ecf86b1f178be6e0d57a92ce40df0.dll,#1
2⤵
- Checks whether UAC is enabled
PID:684

Network

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/684-114-0x0000000000000000-mapping.dmp

Download
memory/684-115-0x0000000074350000-0x000000007437E000-memory.dmp

Filesize
184KB

Download
memory/684-117-0x0000000002960000-0x0000000002AAA000-memory.dmp

Filesize
1.3MB

Download