Resubmissions

13/10/2022, 16:27

221013-tx24csdcb610

13/10/2022, 16:20

221013-ttjgvachdp10

Analysis

  • max time kernel
    31s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2022, 16:27

General

  • Target
    CHEESE.exe
  • Size 2.4MB
  • Sample221013-tx24csdcb6
  • SHA256 2180293a0c0b7340f85543d453c10e8f9a059b69a530428fe1858e92a7fa63c3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • erbium

C2
  • http://77.73.133.53/cloud/index.php

Signatures

  • Erbium

    Erbium is an infostealer written in C++ and first seen in July 2022.

  • Downloads MZ/PE file
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CHEESE.exe
    "C:\Users\Admin\AppData\Local\Temp\CHEESE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:98660

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/98660-54-0x0000000000400000-0x0000000000405000-memory.dmp

          memory/98660-56-0x0000000000400000-0x0000000000405000-memory.dmp

          memory/98660-63-0x0000000000400000-0x0000000000405000-memory.dmp

          memory/98660-64-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-66-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-68-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-70-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-72-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-73-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-75-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

          memory/98660-76-0x0000000006B90000-0x0000000006E54000-memory.dmp

          memory/98660-77-0x0000000006B90000-0x0000000006E54000-memory.dmp