matiex | cb3a930b00d73a9d5a0313b549a93636eecaf9a4c370e2e9d9ca1b1eaf302eff

General

Target

292aee5526ba2e4858d7ea9178878387.exe
Size

832KB
MD5

292aee5526ba2e4858d7ea9178878387
SHA1

305c62f106a105f086b3a9ad40a2e706d843a148
SHA256

cb3a930b00d73a9d5a0313b549a93636eecaf9a4c370e2e9d9ca1b1eaf302eff
SHA512

b1c3adc4b4960b0d77c596a1d800f027e49d4c1b2b14ba4a293741fd6118e10ead8ca5890e1c296dd711434bc029fa16f26768a0888edee15153a68ad6daad2b

Score

10^/10

matiex collection evasion keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989

Signatures

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

Matiex Main Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/368-136-0x000000000046DCFE-mapping.dmp	family_matiex
behavioral2/memory/368-134-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex
behavioral2/memory/368-146-0x00000000053D0000-0x00000000058CE000-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:

292aee5526ba2e4858d7ea9178878387.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	292aee5526ba2e4858d7ea9178878387.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	292aee5526ba2e4858d7ea9178878387.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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:

292aee5526ba2e4858d7ea9178878387.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	292aee5526ba2e4858d7ea9178878387.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	292aee5526ba2e4858d7ea9178878387.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	292aee5526ba2e4858d7ea9178878387.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

28 freegeoip.app
29 freegeoip.app
25 checkip.dyndns.org

flow	ioc
28	freegeoip.app
29	freegeoip.app
25	checkip.dyndns.org

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:

292aee5526ba2e4858d7ea9178878387.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	292aee5526ba2e4858d7ea9178878387.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	292aee5526ba2e4858d7ea9178878387.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

description pid process target process

PID 1828 set thread context of 368 1828 292aee5526ba2e4858d7ea9178878387.exe 292aee5526ba2e4858d7ea9178878387.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

720 schtasks.exe

description	pid	process	target process
PID 1828 set thread context of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe

pid	process
720	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exepowershell.exe292aee5526ba2e4858d7ea9178878387.exe

pid	process
1828	292aee5526ba2e4858d7ea9178878387.exe
3992	powershell.exe
1828	292aee5526ba2e4858d7ea9178878387.exe
1828	292aee5526ba2e4858d7ea9178878387.exe
3992	powershell.exe
3992	powershell.exe
368	292aee5526ba2e4858d7ea9178878387.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

pid process

368 292aee5526ba2e4858d7ea9178878387.exe

pid	process
368	292aee5526ba2e4858d7ea9178878387.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exepowershell.exe292aee5526ba2e4858d7ea9178878387.exe

description	pid	process
Token: SeDebugPrivilege	1828	292aee5526ba2e4858d7ea9178878387.exe
Token: SeDebugPrivilege	3992	powershell.exe
Token: SeDebugPrivilege	368	292aee5526ba2e4858d7ea9178878387.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

pid process

368 292aee5526ba2e4858d7ea9178878387.exe

pid	process
368	292aee5526ba2e4858d7ea9178878387.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

description	pid	process	target process
PID 1828 wrote to memory of 3992	1828	292aee5526ba2e4858d7ea9178878387.exe	powershell.exe
PID 1828 wrote to memory of 3992	1828	292aee5526ba2e4858d7ea9178878387.exe	powershell.exe
PID 1828 wrote to memory of 3992	1828	292aee5526ba2e4858d7ea9178878387.exe	powershell.exe
PID 1828 wrote to memory of 720	1828	292aee5526ba2e4858d7ea9178878387.exe	schtasks.exe
PID 1828 wrote to memory of 720	1828	292aee5526ba2e4858d7ea9178878387.exe	schtasks.exe
PID 1828 wrote to memory of 720	1828	292aee5526ba2e4858d7ea9178878387.exe	schtasks.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe
PID 1828 wrote to memory of 368	1828	292aee5526ba2e4858d7ea9178878387.exe	292aee5526ba2e4858d7ea9178878387.exe

outlook_office_path 1 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	292aee5526ba2e4858d7ea9178878387.exe

outlook_win_path 1 IoCs

Processes:

292aee5526ba2e4858d7ea9178878387.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	292aee5526ba2e4858d7ea9178878387.exe

C:\Users\Admin\AppData\Local\Temp\292aee5526ba2e4858d7ea9178878387.exe
"C:\Users\Admin\AppData\Local\Temp\292aee5526ba2e4858d7ea9178878387.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:1828

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\292aee5526ba2e4858d7ea9178878387.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3992

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkEJEfKtcdIpBH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4AC1.tmp"
2⤵
- Creates scheduled task(s)
PID:720

C:\Users\Admin\AppData\Local\Temp\292aee5526ba2e4858d7ea9178878387.exe
"C:\Users\Admin\AppData\Local\Temp\292aee5526ba2e4858d7ea9178878387.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:368

Network

MITRE ATT&CK Enterprise 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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/368-136-0x000000000046DCFE-mapping.dmp

Download
memory/368-134-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/368-146-0x00000000053D0000-0x00000000058CE000-memory.dmp

Filesize
5.0MB

Download
memory/368-150-0x00000000071B0000-0x00000000071B1000-memory.dmp

Filesize
4KB

Download
memory/720-133-0x0000000000000000-mapping.dmp

Download
memory/1828-122-0x0000000009430000-0x0000000009431000-memory.dmp

Filesize
4KB

Download
memory/1828-121-0x00000000076E0000-0x00000000076E5000-memory.dmp

Filesize
20KB

Download
memory/1828-123-0x0000000009640000-0x00000000096F2000-memory.dmp

Filesize
712KB

Download
memory/1828-115-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/1828-125-0x0000000009A00000-0x0000000009A01000-memory.dmp

Filesize
4KB

Download
memory/1828-120-0x00000000072E0000-0x00000000072E1000-memory.dmp

Filesize
4KB

Download
memory/1828-119-0x0000000007210000-0x000000000770E000-memory.dmp

Filesize
5.0MB

Download
memory/1828-118-0x00000000072F0000-0x00000000072F1000-memory.dmp

Filesize
4KB

Download
memory/1828-117-0x0000000007710000-0x0000000007711000-memory.dmp

Filesize
4KB

Download
memory/3992-124-0x0000000000000000-mapping.dmp

Download
memory/3992-145-0x0000000008780000-0x0000000008781000-memory.dmp

Filesize
4KB

Download
memory/3992-132-0x0000000007590000-0x0000000007591000-memory.dmp

Filesize
4KB

Download
memory/3992-131-0x0000000004D22000-0x0000000004D23000-memory.dmp

Filesize
4KB

Download
memory/3992-135-0x0000000007630000-0x0000000007631000-memory.dmp

Filesize
4KB

Download
memory/3992-129-0x00000000076D0000-0x00000000076D1000-memory.dmp

Filesize
4KB

Download
memory/3992-128-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/3992-141-0x0000000007F50000-0x0000000007F51000-memory.dmp

Filesize
4KB

Download
memory/3992-144-0x0000000007D60000-0x0000000007D61000-memory.dmp

Filesize
4KB

Download
memory/3992-130-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/3992-127-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/3992-147-0x0000000008640000-0x0000000008641000-memory.dmp

Filesize
4KB

Download
memory/3992-126-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/3992-151-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/3992-158-0x00000000093F0000-0x0000000009423000-memory.dmp

Filesize
204KB

Download
memory/3992-165-0x00000000093D0000-0x00000000093D1000-memory.dmp

Filesize
4KB

Download
memory/3992-170-0x0000000009740000-0x0000000009741000-memory.dmp

Filesize
4KB

Download
memory/3992-171-0x000000007F750000-0x000000007F751000-memory.dmp

Filesize
4KB

Download
memory/3992-172-0x0000000009910000-0x0000000009911000-memory.dmp

Filesize
4KB

Download
memory/3992-229-0x0000000004D23000-0x0000000004D24000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads