dridex | 4cf90ed4044d8025261e4740f1b9a98ed5d2c63d9bd9758257bf0881b2e28aca

Analysis

max time kernel
45s
max time network
50s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
31-07-2022 05:10

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General

Target

fb5djyes.dll
Size

476KB
MD5

0e078fcb83f7689e0a613d1e1f98592d
SHA1

02c9122c00abce3664344232be0d821647f5438d
SHA256

4cf90ed4044d8025261e4740f1b9a98ed5d2c63d9bd9758257bf0881b2e28aca
SHA512

e9ac5a2955c040120b0c2eaa4326226ebd4699e252bf69899faf366d2ac760c816888c91bb5bef6e5520736645d5f923f1c037c82cf90e981313c911a9ac81be

Score

10^/10

dridex 10444 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

10444

23.246.204.126:443

151.106.39.36:8116

103.124.144.123:6891

172.105.78.60:4664

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/1992-56-0x0000000074D20000-0x0000000074D99000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1912 1992 WerFault.exe rundll32.exe

pid	pid_target	process	target process
1912	1992	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1992	1664	rundll32.exe	rundll32.exe
PID 1992 wrote to memory of 1912	1992	rundll32.exe	WerFault.exe
PID 1992 wrote to memory of 1912	1992	rundll32.exe	WerFault.exe
PID 1992 wrote to memory of 1912	1992	rundll32.exe	WerFault.exe
PID 1992 wrote to memory of 1912	1992	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb5djyes.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb5djyes.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 344
3⤵
- Program crash
PID:1912

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1912-58-0x0000000000000000-mapping.dmp

Download
memory/1992-54-0x0000000000000000-mapping.dmp

Download
memory/1992-55-0x0000000076631000-0x0000000076633000-memory.dmp

Filesize
8KB

Download
memory/1992-56-0x0000000074D20000-0x0000000074D99000-memory.dmp

Filesize
484KB

Download
memory/1992-59-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download