dridex | eea8515a729717bea0a995407687a829e0bd3daa3115032946b76e7071db7580

Analysis

max time kernel
121s
max time network
124s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 19:07

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General

Target

6_System.Data.Services.Client.dll
Size

180KB
MD5

c3c91aab11ef219ec03c45850a793306
SHA1

6b86858e92932f11debd8b0e969ac31e140f5abb
SHA256

eea8515a729717bea0a995407687a829e0bd3daa3115032946b76e7071db7580
SHA512

8da9972693467d4d180a489fdf0a014d161b70e630845816fd4a4c5e435b59657dd5966c4e7428b5796d38a54234d1900b037074985ac69878bb0a2c65ca4e2c

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

212.237.17.99:443

176.28.17.160:6602

51.254.140.238:8333

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/2596-116-0x0000000073ED0000-0x0000000073EFF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

912 2596 WerFault.exe rundll32.exe

pid	pid_target	process	target process
912	2596	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe
912	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 912 WerFault.exe
Token: SeBackupPrivilege 912 WerFault.exe
Token: SeDebugPrivilege 912 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	912	WerFault.exe
Token: SeBackupPrivilege	912	WerFault.exe
Token: SeDebugPrivilege	912	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1860 wrote to memory of 2596	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2596	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2596	1860	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6_System.Data.Services.Client.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6_System.Data.Services.Client.dll,#1
2⤵
PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:912

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2596-115-0x0000000000000000-mapping.dmp

Download
memory/2596-116-0x0000000073ED0000-0x0000000073EFF000-memory.dmp

Filesize
188KB

Download
memory/2596-118-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download