Analysis

  • max time kernel
    306s
  • max time network
    301s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    02-12-2021 12:43

General

  • Target

    Pending Invoice 38129337.exe

  • Size

    356KB

  • MD5

    8b7820fd7d45dcd564fb92db1ebe9295

  • SHA1

    c383a24a84143123f120f754bb0877b91628ff5b

  • SHA256

    c1657f01ccef85f3f46740a96704bc5dccfb4cf8fc9ac09abcfd7aa6660448f7

  • SHA512

    96ffc3d1d785035b47342b700d2930cf4daee597d02e97310a53be8baa819b403dbd96e82470fa0483f5bb442728c4e0eb352ebca0945070a49013451c441590

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ea0r

C2

http://www.asiapubz-hk.com/ea0r/

Decoy

lionheartcreativestudios.com

konzertmanagement.com

blackpanther.online

broychim-int.com

takut18.com

txstarsolar.com

herdsherpa.com

igorshestakov.com

shinesbox.com

reflectpkljlt.xyz

oiltoolshub.com

viralmoneychallenge.com

changingalphastrategies.com

mecitiris.com

rdadmin.online

miniambiente.com

kominarcine.com

pino-almond.com

heihit.xyz

junqi888.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 59 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\Pending Invoice 38129337.exe
      "C:\Users\Admin\AppData\Local\Temp\Pending Invoice 38129337.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:984
      • C:\Users\Admin\AppData\Local\Temp\Pending Invoice 38129337.exe
        "C:\Users\Admin\AppData\Local\Temp\Pending Invoice 38129337.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1304
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Pending Invoice 38129337.exe"
        3⤵
        • Deletes itself
        PID:340

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsi22CD.tmp\ancprnfrgdi.dll
    MD5

    43e23cb30db04f30af162414f5fcb084

    SHA1

    2f8db11d592b1b28d56f9ba4e8666af458100a3b

    SHA256

    94f51bd2bafd932f5c3ae824f2a2f93be2978c6b7c194f4f39231bce3ac7fac4

    SHA512

    cb1ec23a47939760f6fd6e2e090124bf89c89190ed6cfe634274fdcded11fa868b7ca0c7379ec1452339e4c361a6c052f3bca9dfb44595309af02cfe16fa9daf

  • memory/340-67-0x0000000000000000-mapping.dmp
  • memory/984-55-0x0000000076531000-0x0000000076533000-memory.dmp
    Filesize

    8KB

  • memory/1132-65-0x0000000000470000-0x0000000000484000-memory.dmp
    Filesize

    80KB

  • memory/1132-69-0x0000000001F30000-0x0000000001FC0000-memory.dmp
    Filesize

    576KB

  • memory/1132-68-0x0000000002200000-0x0000000002503000-memory.dmp
    Filesize

    3.0MB

  • memory/1132-66-0x0000000000090000-0x00000000000B9000-memory.dmp
    Filesize

    164KB

  • memory/1132-63-0x0000000000000000-mapping.dmp
  • memory/1268-62-0x00000000067F0000-0x00000000068B2000-memory.dmp
    Filesize

    776KB

  • memory/1268-70-0x0000000006E30000-0x0000000006F8D000-memory.dmp
    Filesize

    1.4MB

  • memory/1304-61-0x00000000002C0000-0x00000000002D1000-memory.dmp
    Filesize

    68KB

  • memory/1304-60-0x0000000000800000-0x0000000000B03000-memory.dmp
    Filesize

    3.0MB

  • memory/1304-58-0x000000000041D410-mapping.dmp
  • memory/1304-57-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB