Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-09-2021 06:27

General

  • Target

    arrival notice.exe

  • Size

    762KB

  • MD5

    4196c697fa8a52ecddad63bf5ac9e8f9

  • SHA1

    1179a7916f59fa2d88829a56f3f045e1cf32c418

  • SHA256

    cfdb27a9ff39bd1aa5a0a43fe6e272c269a311f5748d8a13b2e705f7d66f16bd

  • SHA512

    8c78d2a8276fd10c118732b194865fcd40615beb8ad47459e0ce5c67097d57d66c5764c0eaf8ebdbb7591b3ff03c26f0aa90d7dd7484b8f4709c9a79c607d5a0

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

n58i

C2

http://www.nordicbatterybelt.net/n58i/

Decoy

southerncircumstance.com

mcsasco.com

ifbrick.com

societe-anonyme.net

bantank.xyz

dogecoin.beauty

aboutacoffee.com

babalandlordrealestate.com

tintgta.com

integrity.directory

parwnr.icu

poltishof.online

stayandstyle.com

ickjeame.xyz

currentmotors.ca

pond.fund

petrosterzis.com

deadbydaylightpoints.com

hotel-balzac.paris

focusmaintainance.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 3 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1196
    • C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
      "C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
        "C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:764
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
        3⤵
        • Deletes itself
        PID:516

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/516-75-0x0000000000000000-mapping.dmp
  • memory/764-68-0x00000000008D0000-0x0000000000BD3000-memory.dmp
    Filesize

    3.0MB

  • memory/764-69-0x0000000000180000-0x0000000000191000-memory.dmp
    Filesize

    68KB

  • memory/764-66-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/764-67-0x000000000041D470-mapping.dmp
  • memory/1196-77-0x0000000006490000-0x00000000065D9000-memory.dmp
    Filesize

    1.3MB

  • memory/1196-70-0x0000000007170000-0x00000000072D7000-memory.dmp
    Filesize

    1.4MB

  • memory/1304-65-0x0000000000CE0000-0x0000000000D0B000-memory.dmp
    Filesize

    172KB

  • memory/1304-60-0x0000000001220000-0x0000000001221000-memory.dmp
    Filesize

    4KB

  • memory/1304-64-0x00000000049C0000-0x0000000004A21000-memory.dmp
    Filesize

    388KB

  • memory/1304-63-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
    Filesize

    4KB

  • memory/1304-62-0x0000000000420000-0x0000000000427000-memory.dmp
    Filesize

    28KB

  • memory/1492-71-0x0000000000000000-mapping.dmp
  • memory/1492-73-0x0000000000080000-0x00000000000A9000-memory.dmp
    Filesize

    164KB

  • memory/1492-72-0x0000000000980000-0x0000000000989000-memory.dmp
    Filesize

    36KB

  • memory/1492-74-0x0000000002320000-0x0000000002623000-memory.dmp
    Filesize

    3.0MB

  • memory/1492-76-0x0000000002050000-0x00000000020E0000-memory.dmp
    Filesize

    576KB