dridex | 250fa7941a5fdbed9970c30e33af69ad992e1c81467a0e02a8091dd38a8cdc9a

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:44

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General

Target

250fa7941a5fdbed9970c30e33af69ad992e1c81467a0e02a8091dd38a8cdc9a.dll
Size

157KB
MD5

841f568388b0df84d29a455a7222012c
SHA1

536144a277a47312e95db4a9cbcd42f6a0deb8f1
SHA256

250fa7941a5fdbed9970c30e33af69ad992e1c81467a0e02a8091dd38a8cdc9a
SHA512

736dc25700c36577459972a9c7ee2236f71766bf1fbbe320ff5bc98d297010a0c6bdb6bfb4e7b42ce896375fcd2aa6b10fbc9d4efe016ee713afdb6afaae81ca

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
behavioral1/memory/1992-61-0x0000000074D70000-0x0000000074D9D000-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 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe
PID 1820 wrote to memory of 1992	1820	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\250fa7941a5fdbed9970c30e33af69ad992e1c81467a0e02a8091dd38a8cdc9a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\250fa7941a5fdbed9970c30e33af69ad992e1c81467a0e02a8091dd38a8cdc9a.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1992

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/1992-59-0x0000000000000000-mapping.dmp

Download
memory/1992-60-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1992-61-0x0000000074D70000-0x0000000074D9D000-memory.dmp

Filesize
180KB

Download
memory/1992-63-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download