Analysis

  • max time kernel
    156s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    24-09-2021 10:04

General

  • Target

    PROFOMA INVOICE.exe

  • Size

    866KB

  • MD5

    24736913b455be2ed3d1cc67c767afc4

  • SHA1

    8026db0f265178cf013ac579c1b7267f4014bf2c

  • SHA256

    a109f0b9407728fef1b41d766e8228085ee04661156d84ef543777bf311f450b

  • SHA512

    49dd3e5ecbf6d4cd310a45d0b52e36a363d701f0a9cc14a1d3c103b613eb5a756fdc9ce8b028d69b56c4c8137d29ea3d57865b4ff75dac44bf982e5c80ee56ee

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload ⋅ 3 IoCs
  • Deletes itself ⋅ 1 IoCs
  • Suspicious use of SetThreadContext ⋅ 4 IoCs
  • Enumerates system info in registry ⋅ 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 21 IoCs
  • Suspicious behavior: MapViewOfSection ⋅ 6 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 2 IoCs
  • Suspicious use of FindShellTrayWindow ⋅ 2 IoCs
  • Suspicious use of SendNotifyMessage ⋅ 2 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    Suspicious use of FindShellTrayWindow
    Suspicious use of SendNotifyMessage
    Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\PROFOMA INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\PROFOMA INVOICE.exe"
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Users\Admin\AppData\Local\Temp\PROFOMA INVOICE.exe
        "{path}"
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        PID:812
    • C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      Suspicious use of SetThreadContext
      Enumerates system info in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:752
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\PROFOMA INVOICE.exe"
        Deletes itself
        PID:656

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • memory/656-71-0x0000000000000000-mapping.dmp
                        • memory/752-67-0x0000000000000000-mapping.dmp
                        • memory/752-72-0x0000000001E90000-0x0000000001F20000-memory.dmp
                        • memory/752-70-0x0000000001FB0000-0x00000000022B3000-memory.dmp
                        • memory/752-69-0x00000000000C0000-0x00000000000E9000-memory.dmp
                        • memory/752-68-0x00000000001C0000-0x00000000001C7000-memory.dmp
                        • memory/812-62-0x0000000000950000-0x0000000000C53000-memory.dmp
                        • memory/812-63-0x0000000000290000-0x00000000002A1000-memory.dmp
                        • memory/812-65-0x0000000000330000-0x0000000000341000-memory.dmp
                        • memory/812-61-0x000000000041D3A0-mapping.dmp
                        • memory/812-60-0x0000000000400000-0x0000000000429000-memory.dmp
                        • memory/1120-54-0x0000000001200000-0x0000000001201000-memory.dmp
                        • memory/1120-59-0x00000000009D0000-0x00000000009FB000-memory.dmp
                        • memory/1120-58-0x0000000007E80000-0x0000000007EF9000-memory.dmp
                        • memory/1120-57-0x00000000007E0000-0x00000000007EE000-memory.dmp
                        • memory/1120-56-0x0000000000A80000-0x0000000000A81000-memory.dmp
                        • memory/1428-64-0x0000000006370000-0x00000000064CF000-memory.dmp
                        • memory/1428-66-0x0000000007210000-0x000000000735D000-memory.dmp
                        • memory/1428-73-0x0000000008EC0000-0x0000000009037000-memory.dmp