Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16/06/2022, 09:42

General

  • Target

    PI.exe

  • Size

    696KB

  • MD5

    ef9ddc4ebd697d61db488c560d2115e9

  • SHA1

    a60fa983cf0a54caa2001f86bac961bba4e4ecc6

  • SHA256

    ce60e4de64afb14f5f5db72f72dcb978930c13b743f093bc8562468c7680d9ee

  • SHA512

    c2564963ca294f5b6ccccc9ae1ae7c325cc981d0b225345b6aab72e1bb100f96606a46fab18f488d3d8eac98a814960c61f3d64986e9a422d3e2c7d6f7667aa9

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

k59h

Decoy

5Jmm72a3503V

N0yBoUCYUTRLfak=

211XjgQWec5Yk5Qo6SgqZGwU

1mxV5ax97shdmbA=

StuJphyppWyplnyrgD58/HNwVc4=

O2q6/rr5gcviVU/h

ataW27/QPlPRgNMvtQ==

ut6GGNcWyhBDDDQ1Db4=

93Rc7LJ6gUek2lG3djp7wg==

8wdHfz6ABUqJsUVbyLDW3Z08hA==

7nAdOLREOQFLfrv8ae4st8yEG1gjpCJs

HD53nVq5W+8zKjeAnUDT

udw2urI9JTRLfak=

eeyly1z1Ko4FGA==

VWym0IGvHmXECZ+AnUDT

Oez2q42RI520scgnuVUxpmA=

bZM6QYi3503V

kkZvoEkVm+eTBw==

HDJld+XLDUGV0YXCdjp7wg==

gW7mk4AU31LHCZ+AnUDT

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • 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 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Local\Temp\PI.exe
      "C:\Users\Admin\AppData\Local\Temp\PI.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1260
      • C:\Users\Admin\AppData\Local\Temp\PI.exe
        "C:\Users\Admin\AppData\Local\Temp\PI.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1044
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\PI.exe"
        3⤵
        • Deletes itself
        PID:764
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:1428

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/876-76-0x0000000000080000-0x00000000000AC000-memory.dmp

            Filesize

            176KB

          • memory/876-74-0x0000000000630000-0x00000000006C0000-memory.dmp

            Filesize

            576KB

          • memory/876-72-0x0000000000840000-0x0000000000B43000-memory.dmp

            Filesize

            3.0MB

          • memory/876-70-0x0000000000830000-0x0000000000836000-memory.dmp

            Filesize

            24KB

          • memory/876-71-0x0000000000080000-0x00000000000AC000-memory.dmp

            Filesize

            176KB

          • memory/1044-59-0x0000000000400000-0x000000000042C000-memory.dmp

            Filesize

            176KB

          • memory/1044-60-0x0000000000400000-0x000000000042C000-memory.dmp

            Filesize

            176KB

          • memory/1044-65-0x0000000000400000-0x000000000042C000-memory.dmp

            Filesize

            176KB

          • memory/1044-66-0x00000000008D0000-0x0000000000BD3000-memory.dmp

            Filesize

            3.0MB

          • memory/1044-67-0x0000000000150000-0x0000000000161000-memory.dmp

            Filesize

            68KB

          • memory/1044-62-0x0000000000400000-0x000000000042C000-memory.dmp

            Filesize

            176KB

          • memory/1260-54-0x0000000000C40000-0x0000000000CF4000-memory.dmp

            Filesize

            720KB

          • memory/1260-58-0x0000000004FF0000-0x000000000505C000-memory.dmp

            Filesize

            432KB

          • memory/1260-57-0x0000000005880000-0x0000000005922000-memory.dmp

            Filesize

            648KB

          • memory/1260-56-0x00000000004C0000-0x00000000004CA000-memory.dmp

            Filesize

            40KB

          • memory/1260-55-0x00000000753C1000-0x00000000753C3000-memory.dmp

            Filesize

            8KB

          • memory/1380-68-0x00000000064E0000-0x00000000065F4000-memory.dmp

            Filesize

            1.1MB

          • memory/1380-75-0x0000000006940000-0x0000000006AB7000-memory.dmp

            Filesize

            1.5MB

          • memory/1380-77-0x0000000006940000-0x0000000006AB7000-memory.dmp

            Filesize

            1.5MB