Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    01-05-2021 06:02

General

  • Target

    Bill Of Lading & Packing List.pdf.gz.exe

  • Size

    207KB

  • MD5

    8fa3305b6265fa3c61f58ce580b07f54

  • SHA1

    2123a32738d6f92cd893c7a67603e14042c849b6

  • SHA256

    18ff6408798a94561e9fc4f6fb43dcc279b9b98a554e5cd26ab1944f7b75e35a

  • SHA512

    296a848fb00a4e9b52ee02c761f5e9eb1d973b52aa60d1ac03a9decfe4e4202a0e04f315c334846f15ce6aef65ded028c5a93a87a1d84861c7b376db6602971a

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.citestaccnt1597666144.com/ud9e/

Decoy

casezs.com

gascubby.com

pekodains.com

superskosh.com

avktinfracon.com

slink.finance

thegreathopeofearth.com

thebattleofthestars.com

utmxpxq.icu

mamaandbabycleaningservice.com

officialtimelessbeauty.com

keeper.network

leyingcp.com

helpforharrysheroes.com

cohenforleehealthboard.com

wsilhavy.net

logisticsconsultinglimited.com

btechnician.com

dynamicpersiankitten.com

nuplaz.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 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 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Users\Admin\AppData\Local\Temp\Bill Of Lading & Packing List.pdf.gz.exe
      "C:\Users\Admin\AppData\Local\Temp\Bill Of Lading & Packing List.pdf.gz.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1084
      • C:\Users\Admin\AppData\Local\Temp\Bill Of Lading & Packing List.pdf.gz.exe
        "C:\Users\Admin\AppData\Local\Temp\Bill Of Lading & Packing List.pdf.gz.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1804
    • C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Bill Of Lading & Packing List.pdf.gz.exe"
        3⤵
        • Deletes itself
        PID:804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsi428.tmp\is9y8jp353gr7.dll

    MD5

    75ffa9f5a113fa24ef7407dd7de06b7c

    SHA1

    6abc5f546cf8aeb787bdf78fb8a8ec29cdec9e8c

    SHA256

    0dec7f6c951a3281159d164b5bb06b2de106fa2b51942d8d5b662f49bbed881b

    SHA512

    cbb5a42045533ad7850a867240b6bd8edffe4e3f39f3ff89b75657c3817da820a46f1612f31aea499f137488a2c56b5817e34180d25ea472ad21f25b3372f50c

  • memory/804-68-0x0000000000000000-mapping.dmp

  • memory/1084-61-0x0000000002450000-0x000000000309A000-memory.dmp

    Filesize

    12.3MB

  • memory/1084-59-0x00000000752F1000-0x00000000752F3000-memory.dmp

    Filesize

    8KB

  • memory/1288-66-0x0000000004FF0000-0x000000000517A000-memory.dmp

    Filesize

    1.5MB

  • memory/1288-73-0x0000000006F50000-0x0000000007098000-memory.dmp

    Filesize

    1.3MB

  • memory/1448-67-0x0000000000000000-mapping.dmp

  • memory/1448-70-0x0000000000070000-0x0000000000099000-memory.dmp

    Filesize

    164KB

  • memory/1448-71-0x0000000000BF0000-0x0000000000EF3000-memory.dmp

    Filesize

    3.0MB

  • memory/1448-69-0x0000000000F10000-0x0000000000F32000-memory.dmp

    Filesize

    136KB

  • memory/1448-72-0x0000000000960000-0x00000000009EF000-memory.dmp

    Filesize

    572KB

  • memory/1804-64-0x0000000000770000-0x0000000000A73000-memory.dmp

    Filesize

    3.0MB

  • memory/1804-65-0x0000000000200000-0x0000000000210000-memory.dmp

    Filesize

    64KB

  • memory/1804-63-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/1804-62-0x000000000041D110-mapping.dmp