Malicious PDF — malware analysis report

Static analysis result for SHA-256 da505861e82f6ffc…

MALICIOUS

PDF

19.5 KB Created: 2019-05-04 10:32:59 +01:00 Authoring application: mPDF 5.7
MD5: e374224d3e5fbeb067272a6066d4e86f SHA-1: 70e3dd614634a7b34c3c70e32800917fea5839ef SHA-256: da505861e82f6ffcb85cf86a15ea88501eb8c9a3d95770851409f757c32f0eb9
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO poisoning or to distribute malware. The ML classifier strongly indicated maliciousness. No scripts were extracted from this sample, and the document body primarily consists of these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 2

  • 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.
  • 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://cefasfese.4pu.com/1731738730736737/Country-of-Cold-Stories-of-Sex-and-Death-by-Kevin-Patterson.pdf
    • http://cefasfese.4pu.com/4731734737737736/In-From-the-Cold-Cold-Country-1-by-Mercy-Celeste.pdf
    • http://cefasfese.4pu.com/2730735730738733/Consumption-by-Kevin-Patterson.pdf
    • http://cefasfese.4pu.com/3737735736739730/Cold-War-in-a-Country-Garden-by-Lindsay-Gutteridge.pdf
    • http://cefasfese.4pu.com/1737736736739732/On-Whiskey-Cold-Weather-Music-and-People-The-Musings-of-a-Queer-Country-Girl-by-Hannah-Spicer.pdf
    • http://cefasfese.4pu.com/9737737733737/Near-Death-Experiences-True-stories-of-Near-Death-Experiences-told-by-real-people-True-stories-of-those-who-went-to-Heaven-by-Tessy-Rawlins.pdf
    • http://cefasfese.4pu.com/2732736735733738/Thriller-Stories-To-Keep-You-Up-All-Night-by-James-Patterson.pdf
    • http://cefasfese.4pu.com/1730731731736732/Cold-Sea-Stories-by-Pawe-Huelle.pdf
    • http://cefasfese.4pu.com/5733734735737737/A-Day-in-the-Country-and-Other-Stories-by-Guy-de-Maupassant.pdf
    • http://cefasfese.4pu.com/2730731739731733/Country-Brides-A-Little-Bit-Country-Country-Bride-by-Debbie-Macomber.pdf
    • http://cefasfese.4pu.com/1732738738734734/Death-of-the-Rising-Sun-A-Search-for-Truth-in-the-John-F-Kennedy-Assassination-by-Kevin-J-Shay.pdf
    • http://cefasfese.4pu.com/3733732733730730/There-are-Little-Kingdoms-Stories-by-Kevin-Barry.pdf
    • http://cefasfese.4pu.com/4739730736735735/Beautiful-Country-Stories-from-another-India-by-Syeda-Hameed.pdf
    • http://cefasfese.4pu.com/2732731733739730/East-of-the-West-A-Country-in-Stories-by-Miroslav-Penkov.pdf
    • http://cefasfese.4pu.com/1735734732738734/Machine-of-Death-A-Collection-of-Stories-About-People-Who-Know-How-They-Will-Die-Machine-of-Death-1-by-Ryan-North.pdf
    • http://cefasfese.4pu.com/2739730732736735/The-Country-of-the-Pointed-Firs-and-Other-Stories-by-Sarah-Orne-Jewett.pdf
    • http://cefasfese.4pu.com/9735730734735/The-Country-of-the-Pointed-Firs-and-Other-Stories-by-Sarah-Orne-Jewett.pdf
    • http://cefasfese.4pu.com/1739738736731/One-Teacher-in-10-LGBT-Educators-Share-Their-Stories-by-Kevin-Jennings.pdf
    • http://cefasfese.4pu.com/2733738739737732/Cat-Attacks-True-Stories-and-Hard-Lessons-from-Cougar-Country-by-Jo-Deurbrouck.pdf
    • http://cefasfese.4pu.com/4732732734735732/Christmas-Terror-Tales-Stories-to-Enjoy-from-October-Through-December-by-Kevin-M-Folliard.pdf
    • http://cefasfese.4pu.com/2730731739731733/Country-Bride

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