Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b68d91d55623a9…

MALICIOUS

PDF

37.8 KB Authoring application: SWFTools
MD5: 92ad191f8a9c190c07ebf7c03a83f025 SHA-1: 3a3bfcc9e820ba527b714dc4bcb87de7754ed844 SHA-256: 60b68d91d55623a95447d86c077d4069dbde1e93446ba0ae05f8a0c283507fe7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and URL farm suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://centralcarolinagsdclub.com/uploads/1/3/0/5/130543262/8e3a368b44d58.pdf
    • http://arlotrainor.com/uploads/1/3/0/2/130289344/bifeludegugawudul.pdf
    • http://brandmediax.com/uploads/1/3/0/3/130313504/214c4b7e6.pdf
    • http://zamube.ww7ww.top/uploads/2020/01/28/b0e6d7b.pdf
    • http://deinehandwerker.ch/uploads/1/3/0/6/130621507/sabumabula.pdf
    • http://opopx.icu/uploads/2020/01/29/5154972.pdf
    • http://cobratech.ru/uploads/2020/01/28/3255600.pdf
    • http://kag.gochu.ru/uploads/2020/01/27/viveku.pdf
    • http://etalonclinica.ru/uploads/2020/01/29/9238010.pdf
    • http://safecleanasc.com/uploads/1/3/0/6/130621349/guwozomejebevolilot.pdf
    • http://fenurega.kangaroo-shop.ru/uploads/2020/01/28/6763234.pdf
    • https://rufebegebe.weebly.com/uploads/1/3/0/2/130271143/620088.pdf
    • http://rhythmjackson.com/uploads/1/3/0/6/130621903/df36eca744.pdf
    • http://theluckywood.com/uploads/1/3/0/4/130476688/2284955.pdf
    • http://bimplicity.net/uploads/1/3/0/6/130621864/pegamejer.pdf
    • http://fodejuto.otzyvok.com/uploads/2020/01/28/8548173181d9.pdf
    • https://larupikotuxuda.weebly.com/uploads/1/3/0/2/130271157/6660905.pdf
    • http://sovanudo.ddnshit.com/uploads/2020/01/27/sikivuponuz.pdf
    • http://gugafum.flashapp.online/uploads/2020/01/28/penulas_sovapavexeg_foluxu.pdf
    • http://cavaliercrazyrescue.weebly.com/uploads/1/3/0/3/130323208/7845230.pdf
    • http://kosupuk.espressoplanner.com/uploads/2020/01/29/makusof-sokenarezafu.pdf
    • http://zuto.x-qual.com/uploads/2020/01/29/zomorig_wekufifixaxi.pdf
    • http://woodridgemusicclub.com/uploads/1/3/0/6/130604620/mitilifa.pdf
    • http://nethandilin.fo/uploads/1/3/0/5/130551562/5598618.pdf
    • http://drumvoice.org/uploads/1/3/0/2/130287428/130287428.html#worksheets+to+develop+writing+skills

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000168d.bin
d8d51f20104bf8634f48fa5fc7994693db66db505c8f848128a64eb3527826c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x168D 7756 bytes