matiex | 959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d

General

Target

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Size

790KB
MD5

b3f376aa63caf6b537d4b6a7308e3b7b
SHA1

52157f01ff1b092e9ed9982b79ca2de272233c4a
SHA256

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d
SHA512

9c01fcc4d2b50c28b8ae38aee6318176cff91d16ad2f4d60b4f67032582fbcafb594c3938a00b330290a738bb9ce63f78b8574fd511d7474357b26005c479246

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: ftp
Host:
ftp://ftp.minister-finance.com/
Port:
21
Username:
[email protected]
Password:
Dakar@911

Signatures

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

Matiex Main Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1992-63-0x0000000000400000-0x0000000000478000-memory.dmp	family_matiex
behavioral1/memory/1992-64-0x0000000000400000-0x0000000000478000-memory.dmp	family_matiex
behavioral1/memory/1992-65-0x0000000000400000-0x0000000000478000-memory.dmp	family_matiex
behavioral1/memory/1992-66-0x00000000004721BE-mapping.dmp	family_matiex
behavioral1/memory/1992-68-0x0000000000400000-0x0000000000478000-memory.dmp	family_matiex
behavioral1/memory/1992-70-0x0000000000400000-0x0000000000478000-memory.dmp	family_matiex

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

Drops startup file 1 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\appdata.url	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.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.

Processes:

flow ioc

4 checkip.dyndns.org
8 freegeoip.app
9 freegeoip.app

flow	ioc
4	checkip.dyndns.org
8	freegeoip.app
9	freegeoip.app

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	pid	process	target process
PID 1876 set thread context of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1632 1992 WerFault.exe 959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1388 schtasks.exe

pid	pid_target	process	target process
1632	1992	WerFault.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

pid	process
1388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

pid	process
1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	pid	process
Token: SeDebugPrivilege	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
Token: SeDebugPrivilege	1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	pid	process	target process
PID 1876 wrote to memory of 1388	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	schtasks.exe
PID 1876 wrote to memory of 1388	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	schtasks.exe
PID 1876 wrote to memory of 1388	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	schtasks.exe
PID 1876 wrote to memory of 1388	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	schtasks.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1876 wrote to memory of 1992	1876	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
PID 1992 wrote to memory of 1632	1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	WerFault.exe
PID 1992 wrote to memory of 1632	1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	WerFault.exe
PID 1992 wrote to memory of 1632	1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	WerFault.exe
PID 1992 wrote to memory of 1632	1992	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

outlook_win_path 1 IoCs

Processes:

959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe

C:\Users\Admin\AppData\Local\Temp\959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
"C:\Users\Admin\AppData\Local\Temp\959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmKrfVwAxR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp229E.tmp"
2⤵
- Creates scheduled task(s)
PID:1388

C:\Users\Admin\AppData\Local\Temp\959c997ad7beaa75558665d28c9684515da2f5d5cb69b7a5375e1acbe397dc9d.exe
"{path}"
2⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 1820
3⤵
- Program crash
PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp229E.tmp
Filesize
1KB

MD5
de601cababc261de8996a4e3d654a975

SHA1
541827a143e82983840a9198f46f9e48d8150e33

SHA256
293b7e19739d52a20087ce2518a686ae6f589a8cb24513264f514167a9cd90d7

SHA512
0cc809fd15db11238930a7aa927ea700afe0305b234b41d52cdd9d235c6d7a4812c89a064251d65e5e808d493ea05d877d1465aa8ad627fbafaeb26442fd6a17

Download Submit
memory/1388-58-0x0000000000000000-mapping.dmp

Download
memory/1632-71-0x0000000000000000-mapping.dmp

Download
memory/1876-55-0x0000000000D70000-0x0000000000DE2000-memory.dmp

Filesize
456KB

Download
memory/1876-56-0x0000000000490000-0x00000000004AC000-memory.dmp

Filesize
112KB

Download
memory/1876-57-0x0000000004C20000-0x0000000004CC2000-memory.dmp

Filesize
648KB

Download
memory/1876-54-0x00000000010B0000-0x000000000117E000-memory.dmp

Filesize
824KB

Download
memory/1992-60-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-63-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-64-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-65-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-66-0x00000000004721BE-mapping.dmp

Download
memory/1992-68-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-70-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1992-61-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads