dridex | 47ccaacdb3f46f8578825f19d50b5d93d8a0dc57f114fc329ee41c8a6f15b88a

Analysis

max time kernel
44s
max time network
49s
platform
windows7_x64
resource
win7-20220414-en
submitted
10-05-2022 05:56

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General

Target

oithak.dll
Size

476KB
MD5

b0105f4cb8deb73bf813d0881781c2a9
SHA1

3781d4a2fd04cfe91f063d064a46d14d9b2150c2
SHA256

47ccaacdb3f46f8578825f19d50b5d93d8a0dc57f114fc329ee41c8a6f15b88a
SHA512

3605c8e0782a5e841d9b2b1938fcbba2a226830eff86ef3d653c2f2a26a46763c1f8acb595d279164916feaf92e83695a7fa3658e4a0bc2e6717906ba2783eb5

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/1956-56-0x0000000074FD0000-0x0000000075049000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

956 1956 WerFault.exe rundll32.exe

pid	pid_target	process	target process
956	1956	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1956	2040	rundll32.exe	rundll32.exe
PID 1956 wrote to memory of 956	1956	rundll32.exe	WerFault.exe
PID 1956 wrote to memory of 956	1956	rundll32.exe	WerFault.exe
PID 1956 wrote to memory of 956	1956	rundll32.exe	WerFault.exe
PID 1956 wrote to memory of 956	1956	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\oithak.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\oithak.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 344
3⤵
- Program crash
PID:956

MITRE ATT&CK Matrix

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Downloads

memory/956-58-0x0000000000000000-mapping.dmp

Download
memory/1956-54-0x0000000000000000-mapping.dmp

Download
memory/1956-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1956-56-0x0000000074FD0000-0x0000000075049000-memory.dmp

Filesize
484KB

Download
memory/1956-59-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download