dridex | 8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0

Analysis

max time kernel
80s
max time network
124s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 05:20

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General

Target

8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0.dll
Size

180KB
MD5

aba5b0df02c421887cd5899a1e3ee976
SHA1

f126397b4e63a9dc647172ee71c737d4271e0522
SHA256

8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0
SHA512

650e5ba28d642a225f605659538a203c694b09bb00f60c68a5b5d9b2db8ba09a25c780edb1da994e994c49baf6e67200fd63b991592a9da62e63cc99300645bc

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/3812-116-0x00000000740A0000-0x00000000740CF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1232 3812 WerFault.exe rundll32.exe

pid	pid_target	process	target process
1232	3812	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe
1232	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1232 WerFault.exe
Token: SeBackupPrivilege 1232 WerFault.exe
Token: SeDebugPrivilege 1232 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1232	WerFault.exe
Token: SeBackupPrivilege	1232	WerFault.exe
Token: SeDebugPrivilege	1232	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2176 wrote to memory of 3812	2176	rundll32.exe	rundll32.exe
PID 2176 wrote to memory of 3812	2176	rundll32.exe	rundll32.exe
PID 2176 wrote to memory of 3812	2176	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2176

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0.dll,#1
2⤵
PID:3812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1232

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3812-115-0x0000000000000000-mapping.dmp

Download
memory/3812-116-0x00000000740A0000-0x00000000740CF000-memory.dmp

Filesize
188KB

Download
memory/3812-118-0x0000000003250000-0x0000000003256000-memory.dmp

Filesize
24KB

Download