dridex | c3a5efead3e0b6afc076d5132c2c8eb95938f9a20bac2a9e240b2c8755b0d219

Analysis

max time kernel
25s
max time network
91s
platform
windows10_x64
resource
win10v20210408
submitted
24-06-2021 07:43

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General

Target

c3a5efead3e0b6afc076d5132c2c8eb95938f9a20bac2a9e240b2c8755b0d219.dll
Size

160KB
MD5

da77541e2cdb0c0a87bb54440ef5555b
SHA1

6073bf478972e2b5f586e9499045493b4f5d81fd
SHA256

c3a5efead3e0b6afc076d5132c2c8eb95938f9a20bac2a9e240b2c8755b0d219
SHA512

496f1dfa843a8d1bd37ef453d659997e8a06cabc4c613ffd3a32d0dfac173bb1102951bcef29f8218e1aec0b3b4351b04d2cec423111d6f70858b814b249d531

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/904-115-0x0000000074310000-0x000000007433E000-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 664 wrote to memory of 904	664	rundll32.exe	rundll32.exe
PID 664 wrote to memory of 904	664	rundll32.exe	rundll32.exe
PID 664 wrote to memory of 904	664	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c3a5efead3e0b6afc076d5132c2c8eb95938f9a20bac2a9e240b2c8755b0d219.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:664

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c3a5efead3e0b6afc076d5132c2c8eb95938f9a20bac2a9e240b2c8755b0d219.dll,#1
2⤵
- Checks whether UAC is enabled
PID:904

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/904-114-0x0000000000000000-mapping.dmp

Download
memory/904-115-0x0000000074310000-0x000000007433E000-memory.dmp

Filesize
184KB

Download
memory/904-117-0x0000000003440000-0x0000000003446000-memory.dmp

Filesize
24KB

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