dridex | 781eb8553b3ca720f4d2e13808c349663937d49a4e735b9c7cd792e4343f7df9

Analysis

max time kernel
121s
max time network
122s
platform
windows10_x64
resource
win10-en-20211014
submitted
21-10-2021 05:20

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General

Target

781eb8553b3ca720f4d2e13808c349663937d49a4e735b9c7cd792e4343f7df9.dll
Size

180KB
MD5

3db9494ba19459c1c47680286771d913
SHA1

6f0f8c56a83388bb50699187bc2c85b0389c6bc5
SHA256

781eb8553b3ca720f4d2e13808c349663937d49a4e735b9c7cd792e4343f7df9
SHA512

98cb65afc4e9d88a1fe5b1bccfb271ab01d6769c4a4f05be3ed419ee3984ab436972ce6f93a4d366e56abe166ebc4334adba05cc7eb1b4de94b7c3ac8c675879

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

155.138.203.91:443

207.180.220.242:8116

46.101.142.214:6891

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/3488-116-0x0000000073930000-0x000000007395F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

752 3488 WerFault.exe rundll32.exe

pid	pid_target	process	target process
752	3488	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 752 WerFault.exe
Token: SeBackupPrivilege 752 WerFault.exe
Token: SeDebugPrivilege 752 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	752	WerFault.exe
Token: SeBackupPrivilege	752	WerFault.exe
Token: SeDebugPrivilege	752	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1524 wrote to memory of 3488	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 3488	1524	rundll32.exe	rundll32.exe
PID 1524 wrote to memory of 3488	1524	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\781eb8553b3ca720f4d2e13808c349663937d49a4e735b9c7cd792e4343f7df9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\781eb8553b3ca720f4d2e13808c349663937d49a4e735b9c7cd792e4343f7df9.dll,#1
2⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:752

Network

MITRE ATT&CK Matrix

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Downloads

memory/3488-115-0x0000000000000000-mapping.dmp

Download
memory/3488-116-0x0000000073930000-0x000000007395F000-memory.dmp

Filesize
188KB

Download
memory/3488-118-0x00000000030F0000-0x00000000030F6000-memory.dmp

Filesize
24KB

Download