dridex | dff1e14810f798d9fecf383897913684621ac7b73b51f6580d00da936b1b5ef8

Analysis

max time kernel
119s
max time network
122s
platform
windows10_x64
resource
win10-en-20210920
submitted
18-10-2021 15:55

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General

Target

9_System.ServiceModel.Activation.ni.dll
Size

180KB
MD5

8d8b7ea34b7c1e93d924b3da0ad88a3d
SHA1

0969ca2414c7108b3f2ac15ac54c11436ab51f7d
SHA256

dff1e14810f798d9fecf383897913684621ac7b73b51f6580d00da936b1b5ef8
SHA512

563b619827c567140fa005354be51dff26d21fbf8632025fc577ba059697355980c60be2fd7b44f262f86fbcf224a12881c742a5e3010a5635500c7f184aebc3

Score

10^/10

dridex 22203 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22203

195.154.146.84:443

45.56.121.87:8116

157.245.222.44:5723

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
behavioral2/memory/3740-116-0x00000000744F0000-0x000000007451F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2368 3740 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2368	3740	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe
2368	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2368 WerFault.exe
Token: SeBackupPrivilege 2368 WerFault.exe
Token: SeDebugPrivilege 2368 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	2368	WerFault.exe
Token: SeBackupPrivilege	2368	WerFault.exe
Token: SeDebugPrivilege	2368	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2076 wrote to memory of 3740	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 3740	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 3740	2076	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9_System.ServiceModel.Activation.ni.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2076

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9_System.ServiceModel.Activation.ni.dll,#1
2⤵
PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 624
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2368

Network

MITRE ATT&CK Matrix

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Downloads

memory/3740-115-0x0000000000000000-mapping.dmp

Download
memory/3740-116-0x00000000744F0000-0x000000007451F000-memory.dmp

Filesize
188KB

Download
memory/3740-118-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download