dridex | 3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8

Analysis

max time kernel
121s
max time network
124s
platform
windows10_x64
resource
win10-en-20211014
submitted
18-10-2021 17:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6_aaclient.dll
Size

244KB
MD5

94395a29f0cf16cc80c2a1a4aee0d8d4
SHA1

c40574963b019d49fae4cffcefd970edf3957826
SHA256

3c4be1285b8069c2db590c1de6a77adef3198cc9c3f323aef5de73753421c2e8
SHA512

ca4fbefdfd4437f01d11545a28a3d21873f417a237a2e4a7e5c10abc2d59abbe5ffcdb146144e1c7dcfb304b9d747b119c8b1f0e72ac312c0a029cf12985d9f8

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

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 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/3800-120-0x0000000073D00000-0x0000000073D2F000-memory.dmp	dridex_ldr
behavioral2/memory/3800-121-0x0000000073D00000-0x0000000073D3E000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3996 3800 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3996	3800	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe
3996	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3996 WerFault.exe
Token: SeBackupPrivilege 3996 WerFault.exe
Token: SeDebugPrivilege 3996 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3996	WerFault.exe
Token: SeBackupPrivilege	3996	WerFault.exe
Token: SeDebugPrivilege	3996	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1916 wrote to memory of 3800	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 3800	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 3800	1916	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6_aaclient.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1916

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6_aaclient.dll,#1
2⤵
PID:3800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3996

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3800-115-0x0000000000000000-mapping.dmp

Download
memory/3800-116-0x0000000073D00000-0x0000000073D3E000-memory.dmp

Filesize
248KB

Download
memory/3800-119-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

Filesize
24KB

Download
memory/3800-120-0x0000000073D00000-0x0000000073D2F000-memory.dmp

Filesize
188KB

Download
memory/3800-121-0x0000000073D00000-0x0000000073D3E000-memory.dmp

Filesize
248KB

Download
memory/3800-122-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download