matiex | 9704d0420f573639eed3b1765ea5f212ba4c3129333f2efc167a1c0724935419

General

Target

Itemslists.scr
Size

488KB
MD5

b95e010955432d3e5a2e63d54c01e1b2
SHA1

9a9e7575f960483591ac327e092e1a3fb041208a
SHA256

1b68f5ab26d4fd7c7ca1933dd8dcc6f6f879104a072dc92f9d5917ad42a3cfd7
SHA512

f2fca4e5ac2469f8a4466520b154bfa3567a8e060dd14e11692ddf904cea86b7b8eee859e2b125e7234dde956d2e89b000fb7ebcb0648720b822ea4624b0a024
SSDEEP

12288:+g2Sh8cpTmGuh+6soYYhBHDejsgJEaTOL1p6O5n+vToVe:+gRh8xAkFBHDe7bTIW0Ve

Score

10^/10

matiex keylogger stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
coronavirus2020
Email To:
[email protected]

Signatures

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

Matiex Main payload 1 IoCs

Processes:

resource	yara_rule
behavioral4/memory/2156-13-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

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:

Itemslists.scr

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	Itemslists.scr

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
21	checkip.dyndns.org
25	freegeoip.app
26	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

Processes:

Itemslists.scr

description	pid	Process	procid_target
PID 2204 set thread context of 2156	2204	Itemslists.scr	93

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

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1684	2156	WerFault.exe	93

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/Job

T1053

Processes:

schtasks.exe

pid	Process
2348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

MSBuild.exe

pid	Process
2156	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description	pid	Process
Token: SeDebugPrivilege	2156	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Itemslists.scr

description	pid	Process	procid_target
PID 2204 wrote to memory of 2348	2204	Itemslists.scr	91
PID 2204 wrote to memory of 2348	2204	Itemslists.scr	91
PID 2204 wrote to memory of 2348	2204	Itemslists.scr	91
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93
PID 2204 wrote to memory of 2156	2204	Itemslists.scr	93

C:\Users\Admin\AppData\Local\Temp\Itemslists.scr
"C:\Users\Admin\AppData\Local\Temp\Itemslists.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AxOLPSrlQrex" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD28.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2348
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 1968
    3⤵
    - Program crash
    PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2156 -ip 2156
1⤵
PID:800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAD28.tmp

Filesize
1KB

MD5
b67d471b45aa6eaa9bc5d248343afdd4

SHA1
fd4a57bd56579fa4c5f831dece24fb4c8ade48a7

SHA256
e63bbd52b717b07e79e0352da80847d9491d9674b99afbabfb68cfdc94b78107

SHA512
7c4ca5cffa1a813d944e02ceba4813f613db6c7721b93331cd24fa08ae409d505a27752579f0d5672dd4429e4ff85fc6caf5c7034b65196cc418f15496db31ab

Download Submit
memory/2156-19-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2156-18-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2156-17-0x0000000004EB0000-0x0000000004F16000-memory.dmp

Filesize
408KB

Download
memory/2156-16-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2156-13-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2204-3-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/2204-7-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/2204-6-0x0000000005700000-0x000000000577C000-memory.dmp

Filesize
496KB

Download
memory/2204-5-0x00000000057A0000-0x000000000583C000-memory.dmp

Filesize
624KB

Download
memory/2204-15-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2204-4-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2204-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

Filesize
4KB

Download
memory/2204-2-0x00000000051F0000-0x0000000005200000-memory.dmp

Filesize
64KB

Download
memory/2204-1-0x0000000000830000-0x00000000008B0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads