Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2024 19:30

General

  • Target

    54632e7d37d3142474baff846284247d.exe

  • Size

    812KB

  • MD5

    54632e7d37d3142474baff846284247d

  • SHA1

    dfd39606a2dce9ffe5887f494d2cba0ee3c8bd22

  • SHA256

    dbe6359af1e119c871d0811f321e2ee4044eaf6ec65c68623937d096c197fe8c

  • SHA512

    0679ef0eb7b973cef0ebb94bc4e8b0eaf2e5a9ef587b4c54fe81dc984d762bda60266ba83da24bbd5cf9f42110f78b7850e3e4a5cdec8c88037734bf5ccd95ee

  • SSDEEP

    12288:2Pp+gczyhNSvRbBQHR4qz91hI0zSaNsvz+yuWDVId21NaI+E8tyvXMpJXfXUy/Wj:2Dpjtacljjy4OyJC+Ah+yFQzHm2G

Malware Config

Extracted

Family

matiex

Credentials

Signatures

  • Matiex

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

  • Matiex Main payload 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54632e7d37d3142474baff846284247d.exe
    "C:\Users\Admin\AppData\Local\Temp\54632e7d37d3142474baff846284247d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BOZtQE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84C9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2692
    • C:\Users\Admin\AppData\Local\Temp\54632e7d37d3142474baff846284247d.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Modifies system certificate store
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 1244
        3⤵
        • Program crash
        PID:2752

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp84C9.tmp
    Filesize

    1KB

    MD5

    8b023b9beee9ff35973e5572cc6e4cfc

    SHA1

    f3e5758dc53b116e5eca792b3dc3fbf66ce4a2a5

    SHA256

    15a4d0430c66ce152377a8db078563459f49d1ac07e5bd1f0c43231269a0eafa

    SHA512

    ef4bac70cff6b749cd14441961d05690bb86feb214010c89444f9534664597483bb111a1cba2e2ae4ed5ff0ca0c47a7b24c08b8c05f073f50bbfd8303825db5a

  • memory/2704-23-0x00000000746D0000-0x0000000074DBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2704-19-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-13-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-21-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-28-0x00000000059E0000-0x0000000005A20000-memory.dmp
    Filesize

    256KB

  • memory/2704-27-0x00000000746D0000-0x0000000074DBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2704-14-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2704-11-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-12-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-17-0x0000000000400000-0x0000000000474000-memory.dmp
    Filesize

    464KB

  • memory/2704-24-0x00000000059E0000-0x0000000005A20000-memory.dmp
    Filesize

    256KB

  • memory/2956-7-0x0000000005FF0000-0x00000000060A2000-memory.dmp
    Filesize

    712KB

  • memory/2956-4-0x00000000746D0000-0x0000000074DBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2956-0-0x0000000001240000-0x0000000001312000-memory.dmp
    Filesize

    840KB

  • memory/2956-5-0x0000000004DC0000-0x0000000004E00000-memory.dmp
    Filesize

    256KB

  • memory/2956-3-0x00000000004A0000-0x00000000004A8000-memory.dmp
    Filesize

    32KB

  • memory/2956-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp
    Filesize

    6.9MB

  • memory/2956-2-0x0000000004DC0000-0x0000000004E00000-memory.dmp
    Filesize

    256KB

  • memory/2956-6-0x0000000008040000-0x00000000080FC000-memory.dmp
    Filesize

    752KB

  • memory/2956-22-0x00000000746D0000-0x0000000074DBE000-memory.dmp
    Filesize

    6.9MB