matiex | da92268cf4a384c5d170d5d4ef9939183328e699c0097bd02b716757a2bc0dde

Analysis

max time kernel
4294198s
max time network
140s
platform
windows7_x64
resource
win7-20220223-en
submitted
03/03/2022, 16:24

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General

Target
nigga b nostartupp.exe
Size 1.5MB
Sample220303-twld8adeam
SHA256 da92268cf4a384c5d170d5d4ef9939183328e699c0097bd02b716757a2bc0dde
MD5 eef35b609d37962c62bab1df4c0b3c39
SHA1 b009a2c43f9a959c72245e07bfbb32ceb8a2473d
SHA512 63c54c570a672c2baf246d49e674f55a0b9b51e69db6c7cb8ac4d26ea8b1910e1ada87dc26eaaee13cb3428b9fd06a6277f27db88cf282746a9d9cc5f4d935b5
MD5 SHA1 SHA512

Score

10^/10

matiex collection evasion keylogger stealer

Malware Config

Extracted

Family

matiex

https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933

Signatures

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

Matiex Main Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1332-62-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1332-63-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1332-64-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex
behavioral1/memory/1332-65-0x0000000000400000-0x0000000000476000-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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	nigga b nostartupp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	nigga b nostartupp.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.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
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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	nigga b nostartupp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	nigga b nostartupp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1096 set thread context of 1332	1096	nigga b nostartupp.exe	31

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1096	nigga b nostartupp.exe
1332	AddInProcess32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1332	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1096	nigga b nostartupp.exe
Token: SeDebugPrivilege	1332	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1332	AddInProcess32.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 1380	1096	nigga b nostartupp.exe	28
PID 1096 wrote to memory of 1380	1096	nigga b nostartupp.exe	28
PID 1096 wrote to memory of 1380	1096	nigga b nostartupp.exe	28
PID 1096 wrote to memory of 1380	1096	nigga b nostartupp.exe	28
PID 1096 wrote to memory of 272	1096	nigga b nostartupp.exe	29
PID 1096 wrote to memory of 272	1096	nigga b nostartupp.exe	29
PID 1096 wrote to memory of 272	1096	nigga b nostartupp.exe	29
PID 1096 wrote to memory of 272	1096	nigga b nostartupp.exe	29
PID 1096 wrote to memory of 1652	1096	nigga b nostartupp.exe	30
PID 1096 wrote to memory of 1652	1096	nigga b nostartupp.exe	30
PID 1096 wrote to memory of 1652	1096	nigga b nostartupp.exe	30
PID 1096 wrote to memory of 1652	1096	nigga b nostartupp.exe	30
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1096 wrote to memory of 1332	1096	nigga b nostartupp.exe	31
PID 1332 wrote to memory of 984	1332	AddInProcess32.exe	32
PID 1332 wrote to memory of 984	1332	AddInProcess32.exe	32
PID 1332 wrote to memory of 984	1332	AddInProcess32.exe	32
PID 1332 wrote to memory of 984	1332	AddInProcess32.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.exe
"C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.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:1096
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:1380
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\SMSvcHost.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\SMSvcHost.exe"
  2⤵
  PID:272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe"
  2⤵
  PID:1652
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1332
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1096-54-0x0000000000B00000-0x0000000000C8E000-memory.dmp

Download

memory/1096-55-0x000000007402E000-0x000000007402F000-memory.dmp

Download

memory/1096-56-0x00000000753E1000-0x00000000753E3000-memory.dmp

Download

memory/1096-57-0x0000000005000000-0x0000000005001000-memory.dmp

Download

memory/1096-58-0x0000000004EE0000-0x0000000004F90000-memory.dmp

Download

memory/1096-59-0x0000000000490000-0x00000000004AA000-memory.dmp

Download

memory/1332-60-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-61-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-62-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-63-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-64-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-65-0x0000000000400000-0x0000000000476000-memory.dmp

Download

memory/1332-66-0x000000007402E000-0x000000007402F000-memory.dmp

Download

memory/1332-67-0x00000000055E0000-0x00000000055E1000-memory.dmp

Download