Malicious PDF — malware analysis report

Static analysis result for SHA-256 39213c765c1b3feb…

MALICIOUS

PDF

44.8 KB Created: 2020-03-15 04:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 7448021382e4e8d1a695537ed827ff9f SHA-1: 795d369de7181c2f305f69dbe439eac9cd781315 SHA-256: 39213c765c1b3feb55869a26891d292882c4a0d66183f6731cfc7374065b87a7
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are hosted on unrelated domains and follow a similar numeric or slug-based pattern. This indicates a link farm or SEO spam operation designed to drive traffic to various sites. The document body itself contains the phrase 'Blog templates for blogger free', suggesting a lure to attract users interested in such content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://74-123-72-143.mgwnet.com/uploads/1/3/0/6/130603847/130603847.html#blog+templates+for+blogger+free PDF link annotation
    • http://spartanburgfamilylawyer.com/uploads/1/3/0/4/130488295/bugukuxodab.pdfIn PDF document text
    • http://vatspeak.com/uploads/1/3/0/7/130739142/xezigegu-fulezevezuwiv-zopil-sijalevifotemo.pdfIn PDF document text
    • http://chinawindow.biz/uploads/1/3/0/7/130775846/7584570.pdfIn PDF document text
    • http://www.suck-pretty.com/uploads/1/3/0/3/130379589/1067784.pdfIn PDF document text
    • http://fraservalleyfreeschool.ca/uploads/1/3/0/6/130639263/tazefit.pdfIn PDF document text
    • http://www.brettfreundportfolio.com/uploads/1/3/0/6/130621568/revadixug.pdfIn PDF document text
    • http://petssheardelight.com/uploads/1/3/1/0/131071038/d500d9.pdfIn PDF document text
    • http://jinboshiyulechengwangshangdubo.f18.ebkf.org/uploads/1/3/1/0/131070124/bf529a97d748.pdfIn PDF document text
    • http://armandwrightjr.com/uploads/1/3/0/5/130543467/mopezeluvupel.pdfIn PDF document text
    • http://nc-zeitgeist-foundation.org/uploads/1/3/0/5/130588997/lewelododekimudu.pdfIn PDF document text
    • http://777lvloans.com/uploads/1/3/0/4/130490117/da9b2bb5fa96.pdfIn PDF document text
    • http://www.sharayahreed.com/uploads/1/3/0/4/130476043/noteki.pdfIn PDF document text
    • http://www.rejuvenescersaudavel.com/uploads/1/3/0/5/130547405/tokofazarab.pdfIn PDF document text
    • http://jinzitayulechengbaijialejiqiao.br3h.com/uploads/1/3/0/4/130483963/6849699.pdfIn PDF document text
    • http://thedistrictbistro.com/uploads/1/3/0/6/130605389/favesi-xuzokefepezeta-nitelujelu-takapivufa.pdfIn PDF document text
    • http://thebusinesscreditmovement.info/uploads/1/3/0/4/130475892/7a9cc1b07adb09.pdfIn PDF document text
    • http://www.dreampuffs.co/uploads/1/3/0/2/130271096/13e5f512fe.pdfIn PDF document text
    • http://aenea.us/uploads/1/3/0/4/130478551/kasife.pdfIn PDF document text
    • http://lachangemakers.org/uploads/1/3/0/7/130739431/rufefaxuzedapedagu.pdfIn PDF document text
    • http://tofubox.shop/uploads/1/3/0/7/130776023/vasemof_timulemujidelet_givawam.pdfIn PDF document text
    • http://thesharpetraveler.com/uploads/1/3/0/5/130539465/8721810.pdfIn PDF document text
    • http://designerbearsandanimals.com/uploads/1/3/0/6/130603721/risewowapoze-jurabixitesejet.pdfIn PDF document text
    • http://www.edwardfunkhouserofficial.com/uploads/1/3/0/3/130324288/fifesasezudi_nedegit.pdfIn PDF document text
    • http://manlycode.com/uploads/1/3/0/2/130272892/powenaxale-fizepavumagaxe-segemu.pdfIn PDF document text
    • http://brainaneurysm.info/uploads/1/3/0/7/130739303/3212b71.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8355 8964 bytes
SHA-256: c7d88426c299152f97081631370f9b2c456b9f7eb8315db0455a4fd472833379

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