matiex | b84beac430d5c3fd06f4a1016e305884689eba7596eea1d6ca8ffa2122f341ff

General

Target

pictures and logo.exe
Size

669KB
MD5

4fa42a8beb305337e28cede06ceefa62
SHA1

1ad401dc70385788123ae837eea020a9c1d9e9d9
SHA256

c38b853587846014052d5b2206e8764dac66f7de9479ec3080e1872938bd7ceb
SHA512

81dc56b84e3e95169de458d5842c50347455365388b96155aa25a7fea27dc756d20180265ee2b796b2d6ebc2d04d622a6fa9259877f371e956e1458415046807
SSDEEP

12288:mEcQS8zfwkDWsWUZT3HVCuNhzmSEuH/KVTXr2tb:Fcn8zfw+WUZT3HVCuNhqWfKFXr2t

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/2160-28-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Beds Protector Packer 1 IoCs

Detects Beds Protector packer used to load .NET malware.

resource	yara_rule
behavioral8/memory/4664-6-0x0000000004D80000-0x0000000004E26000-memory.dmp	beds_protector

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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pictures and logo.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pictures and logo.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pictures and logo.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
16	checkip.dyndns.org
19	freegeoip.app
20	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4664 set thread context of 2160	4664	pictures and logo.exe	84

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4500	Powershell.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
816	2160	WerFault.exe	84

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	pictures and logo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pictures and logo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4500	Powershell.exe
4500	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4500	Powershell.exe
Token: SeDebugPrivilege	2160	pictures and logo.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 4500	4664	pictures and logo.exe	82
PID 4664 wrote to memory of 4500	4664	pictures and logo.exe	82
PID 4664 wrote to memory of 4500	4664	pictures and logo.exe	82
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84
PID 4664 wrote to memory of 2160	4664	pictures and logo.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pictures and logo.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pictures and logo.exe

C:\Users\Admin\AppData\Local\Temp\pictures and logo.exe
"C:\Users\Admin\AppData\Local\Temp\pictures and logo.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\pictures and logo.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:4500
- C:\Users\Admin\AppData\Local\Temp\pictures and logo.exe
  "C:\Users\Admin\AppData\Local\Temp\pictures and logo.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2160
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 1612
    3⤵
    - Program crash
    PID:816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2160 -ip 2160
1⤵
PID:2944

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

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
553cfcb8247e9e828eef0474e2134fac

SHA1
362c3f93dccc66f3bbfaf5ef681a11a0c7bc7316

SHA256
a753cbd5f89b034eaeeb02fa8f0924bab30e84d86d02686fdf7c0228d8a00d54

SHA512
18b4174286f47b41f47e964c5368b453eba4a23331958e7b982017f965a434aa80c0d3504d13521a9f0550bba4c2b7a62543553d4ddfdf6e1f0c39c6ef542dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oobt1xpp.2vs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2160-41-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2160-33-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2160-31-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2160-28-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4500-13-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/4500-25-0x00000000064C0000-0x00000000064DE000-memory.dmp

Filesize
120KB

Download
memory/4500-8-0x0000000002BC0000-0x0000000002BF6000-memory.dmp

Filesize
216KB

Download
memory/4500-9-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4500-10-0x0000000005630000-0x0000000005C58000-memory.dmp

Filesize
6.2MB

Download
memory/4500-11-0x0000000005430000-0x0000000005452000-memory.dmp

Filesize
136KB

Download
memory/4500-14-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4500-40-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4500-34-0x0000000007490000-0x0000000007526000-memory.dmp

Filesize
600KB

Download
memory/4500-12-0x0000000005D60000-0x0000000005DC6000-memory.dmp

Filesize
408KB

Download
memory/4500-24-0x0000000005ED0000-0x0000000006224000-memory.dmp

Filesize
3.3MB

Download
memory/4500-35-0x00000000069B0000-0x00000000069CA000-memory.dmp

Filesize
104KB

Download
memory/4500-26-0x0000000006550000-0x000000000659C000-memory.dmp

Filesize
304KB

Download
memory/4500-36-0x0000000006A20000-0x0000000006A42000-memory.dmp

Filesize
136KB

Download
memory/4664-5-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/4664-4-0x0000000004C60000-0x0000000004CF2000-memory.dmp

Filesize
584KB

Download
memory/4664-3-0x00000000051E0000-0x00000000056AC000-memory.dmp

Filesize
4.8MB

Download
memory/4664-32-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4664-2-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4664-27-0x0000000004C50000-0x0000000004C66000-memory.dmp

Filesize
88KB

Download
memory/4664-7-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

Filesize
624KB

Download
memory/4664-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/4664-6-0x0000000004D80000-0x0000000004E26000-memory.dmp

Filesize
664KB

Download
memory/4664-1-0x0000000000230000-0x00000000002DE000-memory.dmp

Filesize
696KB

Download

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