dridex | fd249ee7f2c950b4cc40bdd6f6252645ad45599d5a95e78f69b0cf7971737977

Analysis

max time kernel
39s
max time network
47s
platform
windows10_x64
resource
win10v20210408
submitted
11-05-2021 13:30

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General

Target

fd249ee7f2c950b4cc40bdd6f6252645ad45599d5a95e78f69b0cf7971737977.dll
Size

162KB
MD5

ff7173755f65e3044950f9e92c778be8
SHA1

f300931f242fd0ab35dc2923b0423af6aeffd756
SHA256

fd249ee7f2c950b4cc40bdd6f6252645ad45599d5a95e78f69b0cf7971737977
SHA512

42c5664f857616efd5aade3c2b6fb39486058b6dce4503fa04c818101c0220d0c8df63fe982373549d07bde24b7560de4704a3844d608192dc0b633ea8ed1392

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/508-115-0x00000000735F0000-0x000000007361E000-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 604 wrote to memory of 508	604	rundll32.exe	rundll32.exe
PID 604 wrote to memory of 508	604	rundll32.exe	rundll32.exe
PID 604 wrote to memory of 508	604	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd249ee7f2c950b4cc40bdd6f6252645ad45599d5a95e78f69b0cf7971737977.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:604

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd249ee7f2c950b4cc40bdd6f6252645ad45599d5a95e78f69b0cf7971737977.dll,#1
2⤵
- Checks whether UAC is enabled
PID:508

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/508-114-0x0000000000000000-mapping.dmp

Download
memory/508-115-0x00000000735F0000-0x000000007361E000-memory.dmp

Filesize
184KB

Download
memory/508-117-0x0000000000510000-0x00000000005BE000-memory.dmp

Filesize
696KB

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