matiex | d77b5185cb9ee6f14b0dfffc147aca637fff8764c100d70090493b8f9851731f

Analysis

max time kernel
113s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-04-2024 20:51

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General

Target

e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe
Size

928KB
MD5

e3419829c4e6f448ed4b26fe35ae6ce9
SHA1

902805b919c3e1f078eeb607889a01a75b29b49a
SHA256

d77b5185cb9ee6f14b0dfffc147aca637fff8764c100d70090493b8f9851731f
SHA512

2ab6eeafb3e694aba8100df44bcf0b18736fd5aab90d495cbf5646bfbd0db6715cb4a5e3692200992594a40ef83076045cc37d676c12dbbfd1e57258aa6b7feb
SSDEEP

12288:h1Wl8T5NM63xjmeRfdoZBgAWF2p3OGdUMXysKA/zXQ:hA27dxIgBF0OGdUkysLzXQ

Score

10^/10

matiex collection keylogger stealer

Malware Config

Extracted

Family

matiex

https://api.telegram.org/bot1395392888:AAFrJovDdZICOFB0gX0eGWrAUzEKCRpv8xo/sendMessage?chat_id=1300181783

Signatures

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

Matiex Main payload 1 IoCs

resource	yara_rule
behavioral2/memory/5104-2-0x0000000000400000-0x0000000000476000-memory.dmp	family_matiex

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
13	checkip.dyndns.org
17	freegeoip.app
18	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 5104	1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2656	5104	WerFault.exe	94

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5104	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 5104	1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe	94
PID 1436 wrote to memory of 5104	1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe	94
PID 1436 wrote to memory of 5104	1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe	94
PID 1436 wrote to memory of 5104	1436	e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\e3419829c4e6f448ed4b26fe35ae6ce9_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:5104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 2592
    3⤵
    - Program crash
    PID:2656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5104 -ip 5104
1⤵
PID:5032

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4028 --field-trial-handle=2276,i,1205556100727695622,5044463180471657307,262144 --variations-seed-version /prefetch:8
1⤵
PID:684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1436-0-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/1436-1-0x0000000000750000-0x0000000000752000-memory.dmp

Filesize
8KB

Download
memory/1436-3-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/5104-2-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/5104-4-0x0000000074010000-0x00000000747C0000-memory.dmp

Filesize
7.7MB

Download
memory/5104-5-0x00000000057B0000-0x000000000584C000-memory.dmp

Filesize
624KB

Download
memory/5104-6-0x0000000005710000-0x0000000005776000-memory.dmp

Filesize
408KB

Download
memory/5104-7-0x00000000059B0000-0x00000000059C0000-memory.dmp

Filesize
64KB

Download
memory/5104-8-0x0000000006D60000-0x0000000007304000-memory.dmp

Filesize
5.6MB

Download
memory/5104-9-0x0000000074010000-0x00000000747C0000-memory.dmp

Filesize
7.7MB

Download