Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae96be714bbe913…

MALICIOUS

PDF

43.7 KB Created: 2020-03-15 10:45:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 77a639cd24181ff4aedf4f2999d586dc SHA-1: a790046b7c6f5d406c69b0ab04758b8950645261 SHA-256: bae96be714bbe913b238bf85f3707fb865f019fce7f8a548c5ffabe75a6a885f
96 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, identified as a PDF SEO link farm. The document body, though partially corrupted, includes a URL related to 'tecnologia da informação', suggesting a lure to trick users into visiting potentially malicious or phishing websites. The primary goal appears to be redirecting users through a network of linked PDFs hosted on various domains.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://0ys5k.bpmtc.com/uploads/1/3/1/0/131070393/131070393.html#ti+tecnologia+da+informa%C3%A7%C3%A3o+o+que+%C3%A9 PDF link annotation
    • http://ahs-2020.com/uploads/1/3/0/8/130874379/9079117.pdfIn PDF document text
    • http://millerpost.net/uploads/1/3/0/7/130739923/8494323.pdfIn PDF document text
    • http://gibbsangus.com/uploads/1/3/0/5/130539756/mavor.pdfIn PDF document text
    • http://innosol.org/uploads/1/3/0/2/130291596/xinidakig.pdfIn PDF document text
    • http://brehmpainting.com/uploads/1/3/0/2/130271017/70bca40e16525f9.pdfIn PDF document text
    • http://midwaytacticalgear.com/uploads/1/3/0/6/130621130/f611b9a6875f83.pdfIn PDF document text
    • http://www.kinetic-k9.com/uploads/1/3/0/8/130874668/woxexin_sabivinugafak.pdfIn PDF document text
    • http://jasmineandyoga.org/uploads/1/3/0/6/130621776/masaxugijeva-kutavafote.pdfIn PDF document text
    • http://www.purplecowcater.com/uploads/1/3/0/6/130605080/likixegefatij.pdfIn PDF document text
    • http://starbritebucket.com/uploads/1/3/0/4/130435748/4550050.pdfIn PDF document text
    • http://becomeyouempowered.com/uploads/1/3/0/9/130969868/6653327.pdfIn PDF document text
    • http://steelbuildings.christiananker.com/uploads/1/3/0/6/130639444/8684021.pdfIn PDF document text
    • http://summeratolg.com/uploads/1/3/0/3/130379158/moxer.pdfIn PDF document text
    • http://neverendingslimes.com/uploads/1/3/0/2/130272247/b1665.pdfIn PDF document text
    • http://miissb.com/uploads/1/3/0/6/130640071/8802779.pdfIn PDF document text
    • http://myshopexpert.com/uploads/1/3/0/7/130739463/1023141.pdfIn PDF document text
    • http://cynthia-pedrosa.com/uploads/1/3/0/5/130543546/tutapesewinod.pdfIn PDF document text
    • http://nationalbusinesseducationweek.com/uploads/1/3/0/7/130776314/rilalusomexepafiseza.pdfIn PDF document text
    • http://aliciatrammelmua.com/uploads/1/3/0/7/130739129/7230308.pdfIn PDF document text
    • http://arisumiartstudio.com/uploads/1/3/0/7/130775845/minuge_punujijuzos_fesidajed.pdfIn PDF document text
    • http://salvosurfboards.com/uploads/1/3/0/6/130604716/wogarexojerumara.pdfIn PDF document text
    • http://www.got-a-man.com/uploads/1/3/0/4/130435524/4400670.pdfIn PDF document text
    • http://tiffanyharrisonhome.com/uploads/1/3/0/8/130813409/872716.pdfIn PDF document text
    • http://dgaccountingtax.com/uploads/1/3/0/5/130542775/nelojava_jafokuw.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 2

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_off00007f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2B 9684 bytes
SHA-256: 263955b622df710cee9eb810c166f02f4618c1ebbd5a2e6e03a297886d2e6961

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