matiex | 7886d3b7f41a5caeff352a0e574e7c6dfcd89a6888f8860d8af873548b5b543e

General

Target

7605122309.exe
Size

1.1MB
MD5

ad19d31c1acf47a74573444337f81c1c
SHA1

9e51312eba1d12c9b141700d50db9349f349620b
SHA256

630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb
SHA512

50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720

Score

10^/10

matiex collection keylogger persistence spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
baso.elcx@yandex.com
Password:
HYF76io83%$6***

Signatures

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

Matiex Main Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2496-130-0x0000000000D20000-0x0000000000E40000-memory.dmp	family_matiex
C:\Users\Admin\sogh.exe	family_matiex
C:\Users\Admin\sogh.exe	family_matiex
behavioral2/memory/2372-142-0x0000000000800000-0x0000000000874000-memory.dmp	family_matiex

Executes dropped EXE 2 IoCs

Processes:

sogh.exeInstallUtil.exe

pid process

4516 sogh.exe
2372 InstallUtil.exe

pid	process
4516	sogh.exe
2372	InstallUtil.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

7605122309.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	7605122309.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:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smgu = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\sogh.exe"	reg.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

33 checkip.dyndns.org
35 freegeoip.app
36 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

sogh.exe

description pid process target process

PID 4516 set thread context of 2372 4516 sogh.exe InstallUtil.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

1112 2372 WerFault.exe InstallUtil.exe

flow	ioc
33	checkip.dyndns.org
35	freegeoip.app
36	freegeoip.app

description	pid	process	target process
PID 4516 set thread context of 2372	4516	sogh.exe	InstallUtil.exe

pid	pid_target	process	target process
1112	2372	WerFault.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

7605122309.exesogh.exe

pid	process
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
2496	7605122309.exe
4516	sogh.exe
4516	sogh.exe
4516	sogh.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7605122309.exesogh.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 2496 7605122309.exe
Token: SeDebugPrivilege 4516 sogh.exe
Token: SeDebugPrivilege 2372 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2496	7605122309.exe
Token: SeDebugPrivilege	4516	sogh.exe
Token: SeDebugPrivilege	2372	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

7605122309.execmd.exesogh.exe

description	pid	process	target process
PID 2496 wrote to memory of 656	2496	7605122309.exe	cmd.exe
PID 2496 wrote to memory of 656	2496	7605122309.exe	cmd.exe
PID 2496 wrote to memory of 656	2496	7605122309.exe	cmd.exe
PID 656 wrote to memory of 636	656	cmd.exe	reg.exe
PID 656 wrote to memory of 636	656	cmd.exe	reg.exe
PID 656 wrote to memory of 636	656	cmd.exe	reg.exe
PID 2496 wrote to memory of 4516	2496	7605122309.exe	sogh.exe
PID 2496 wrote to memory of 4516	2496	7605122309.exe	sogh.exe
PID 2496 wrote to memory of 4516	2496	7605122309.exe	sogh.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe
PID 4516 wrote to memory of 2372	4516	sogh.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\7605122309.exe
"C:\Users\Admin\AppData\Local\Temp\7605122309.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogh.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogh.exe"
3⤵
- Adds Run key to start application
PID:636

C:\Users\Admin\sogh.exe
"C:\Users\Admin\sogh.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 1984
4⤵
- Program crash
PID:1112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2372 -ip 2372
1⤵
PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\sogh.exe
Filesize
1.1MB

MD5
ad19d31c1acf47a74573444337f81c1c

SHA1
9e51312eba1d12c9b141700d50db9349f349620b

SHA256
630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb

SHA512
50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720

Download Submit
C:\Users\Admin\sogh.exe
Filesize
1.1MB

MD5
ad19d31c1acf47a74573444337f81c1c

SHA1
9e51312eba1d12c9b141700d50db9349f349620b

SHA256
630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb

SHA512
50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720

Download Submit
memory/636-134-0x0000000000000000-mapping.dmp

Download
memory/656-133-0x0000000000000000-mapping.dmp

Download
memory/2372-138-0x0000000000000000-mapping.dmp

Download
memory/2372-142-0x0000000000800000-0x0000000000874000-memory.dmp

Filesize
464KB

Download
memory/2372-143-0x0000000004D70000-0x0000000004E0C000-memory.dmp

Filesize
624KB

Download
memory/2372-144-0x0000000004E10000-0x0000000004E76000-memory.dmp

Filesize
408KB

Download
memory/2496-130-0x0000000000D20000-0x0000000000E40000-memory.dmp

Filesize
1.1MB

Download
memory/2496-132-0x0000000005FD0000-0x0000000006062000-memory.dmp

Filesize
584KB

Download
memory/2496-131-0x0000000006480000-0x0000000006A24000-memory.dmp

Filesize
5.6MB

Download
memory/4516-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads