matiex | ab3043b6f2321bdc9cec4d04b828e293ac1d1f41786494ac8272046d1bdb4663

General

Target

Quotation and Prices.exe
Size

730KB
MD5

6d991f93327f70488011bf06ba799930
SHA1

1b630a8c337cc48f9ec41cccc4352f51e7d51e71
SHA256

abfc5a0bbf24e3dbc1c76c0734ea0b1ed6a0d5ff6f44f2a5a3e4e2f9317118c3
SHA512

181be4ad5a549d51461fd8c9a470abac2895f51b5ec1cdba6927644ca0e8fb91663d8635ed5c98f4a90ae2752eb98b3235f106ee2d009cc885bdf6d0faadfe70
SSDEEP

12288:tFda+FdahcQS8zfwkD/j1UGmy7eaqwVlXN8eR5dKFLtnoAf:8cn8zfwa1Dmyxrd8eqLt

Score

10^/10

matiex collection credential_access discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
MARYolanmauluogwo@ever

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main payload 1 IoCs

resource	yara_rule
behavioral8/memory/772-28-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Beds Protector Packer 1 IoCs

Detects Beds Protector packer used to load .NET malware.

resource	yara_rule
behavioral8/memory/4980-5-0x0000000004DA0000-0x0000000004E46000-memory.dmp	beds_protector

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe	Powershell.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation and Prices.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation and Prices.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation and Prices.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
11	checkip.dyndns.org
16	freegeoip.app
17	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4980 set thread context of 772	4980	Quotation and Prices.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3180	Powershell.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4808	772	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation and Prices.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation and Prices.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3180	Powershell.exe
3180	Powershell.exe
4980	Quotation and Prices.exe
4980	Quotation and Prices.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3180	Powershell.exe
Token: SeDebugPrivilege	4980	Quotation and Prices.exe
Token: SeDebugPrivilege	772	Quotation and Prices.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 3180	4980	Quotation and Prices.exe	86
PID 4980 wrote to memory of 3180	4980	Quotation and Prices.exe	86
PID 4980 wrote to memory of 3180	4980	Quotation and Prices.exe	86
PID 4980 wrote to memory of 4792	4980	Quotation and Prices.exe	88
PID 4980 wrote to memory of 4792	4980	Quotation and Prices.exe	88
PID 4980 wrote to memory of 4792	4980	Quotation and Prices.exe	88
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89
PID 4980 wrote to memory of 772	4980	Quotation and Prices.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation and Prices.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation and Prices.exe

C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3180
- C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe"
  2⤵
  PID:4792
- C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation and Prices.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:772
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 1684
    3⤵
    - Program crash
    PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 772 -ip 772
1⤵
PID:4828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Quotation and Prices.exe.log

Filesize
1KB

MD5
6a669672404c7fa39949936a483cf174

SHA1
25efdb55d16b9629db7d934e960a73d31a24f7c9

SHA256
937f98842e6d7049d8fcbb88ee2c4a324865f528e1fd9ba49de094010801b280

SHA512
ff48308ab82705bbe80139057ac652bf87c5fd7d129b0b57754ce50c833dda1d95743c6dd99d4560d3085cb87b571e7a6657dfde83c3908770ffcbcd551acefe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ao2n2s1g.c1i.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/772-41-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/772-33-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/772-32-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/772-28-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3180-14-0x0000000004DA0000-0x0000000004E06000-memory.dmp

Filesize
408KB

Download
memory/3180-25-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

Filesize
120KB

Download
memory/3180-8-0x00000000023C0000-0x00000000023F6000-memory.dmp

Filesize
216KB

Download
memory/3180-9-0x0000000004EE0000-0x0000000005508000-memory.dmp

Filesize
6.2MB

Download
memory/3180-10-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3180-11-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3180-12-0x0000000004C20000-0x0000000004C42000-memory.dmp

Filesize
136KB

Download
memory/3180-13-0x0000000004CC0000-0x0000000004D26000-memory.dmp

Filesize
408KB

Download
memory/3180-40-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3180-34-0x0000000006250000-0x00000000062E6000-memory.dmp

Filesize
600KB

Download
memory/3180-24-0x0000000005710000-0x0000000005A64000-memory.dmp

Filesize
3.3MB

Download
memory/3180-7-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3180-26-0x0000000005D20000-0x0000000005D6C000-memory.dmp

Filesize
304KB

Download
memory/3180-36-0x0000000006CB0000-0x0000000006CD2000-memory.dmp

Filesize
136KB

Download
memory/3180-35-0x00000000061E0000-0x00000000061FA000-memory.dmp

Filesize
104KB

Download
memory/4980-31-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4980-4-0x0000000004D00000-0x0000000004D92000-memory.dmp

Filesize
584KB

Download
memory/4980-3-0x00000000052B0000-0x0000000005854000-memory.dmp

Filesize
5.6MB

Download
memory/4980-2-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4980-27-0x0000000004CC0000-0x0000000004CD6000-memory.dmp

Filesize
88KB

Download
memory/4980-5-0x0000000004DA0000-0x0000000004E46000-memory.dmp

Filesize
664KB

Download
memory/4980-6-0x0000000004EE0000-0x0000000004F7C000-memory.dmp

Filesize
624KB

Download
memory/4980-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/4980-1-0x0000000000250000-0x000000000030C000-memory.dmp

Filesize
752KB

Download

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