Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2772d96a0cc69df…

MALICIOUS

PDF

41.9 KB Created: 2020-03-22 02:21:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 7f13ed226378bd8ead30593e7b2acb4c SHA-1: b67a0d86d8fb32cae93c19408cf0da5cb9cec9fa SHA-256: c2772d96a0cc69df3bd58059a2a83c0ef6c98709ec322b805f261c249998ffc6
136 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDFs hosted on similar domains. The document body, though heavily corrupted, contains text suggesting it is a PDF about social psychology, likely a lure. The primary heuristic indicates a PDF link farm, suggesting the document's purpose is to drive traffic to these external sites, which may host further malicious content or phishing pages.

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://subanq.com/uploads/1/3/1/0/131070190/131070190.html#introduction+to+social+psychology+a+european+perspective+pdf PDF link annotation
    • http://englandpaper.com/uploads/1/3/0/3/130312986/noviguxibokogapele.pdfIn PDF document text
    • http://norkanews.com/uploads/1/3/0/8/130874326/161355.pdfIn PDF document text
    • http://chrisensweiler.com/uploads/1/3/0/6/130603852/86ee54e28142ca.pdfIn PDF document text
    • http://kenzenk.com/uploads/1/3/0/3/130313531/pinituzolepa-xopalo.pdfIn PDF document text
    • http://www.bethlehemhouse.org/uploads/1/3/0/9/130969150/fec71.pdfIn PDF document text
    • http://mx.lotpartyshow.com/uploads/1/3/0/7/130739490/nigaleva.pdfIn PDF document text
    • http://rkplasticsurgery.com/uploads/1/3/0/6/130639545/7ee08755c5f9db.pdfIn PDF document text
    • http://obccbd.com/uploads/1/3/0/5/130588710/4707304.pdfIn PDF document text
    • http://drjhbahena.com/uploads/1/3/0/4/130435666/tetuzuk-kofuta-ruparepi-gawuraka.pdfIn PDF document text
    • http://jacktopalian.com/uploads/1/3/0/7/130776891/4e0602e7af13e.pdfIn PDF document text
    • http://biofouling.net/uploads/1/3/0/8/130814349/demijivirilak.pdfIn PDF document text
    • http://www.mysmartinspection.com/uploads/1/3/0/2/130291491/kuwululizas-fewerebugu-pewitugivowurep.pdfIn PDF document text
    • http://support.leadheadsfishing.com/uploads/1/3/0/6/130604785/valipelemomekox.pdfIn PDF document text
    • http://www.mobilemechanicmemphistx.com/uploads/1/3/0/6/130639116/lelube.pdfIn PDF document text
    • http://bobpowelltattoo.com/uploads/1/3/0/5/130589115/043050f3ae64e.pdfIn PDF document text
    • http://www.metalheadsmetalwerks.com/uploads/1/3/0/5/130588548/2426311.pdfIn PDF document text
    • http://pomajo.com/uploads/1/3/0/6/130605069/e2be269a8bc300c.pdfIn PDF document text
    • http://www.delangeadvies.nl/uploads/1/3/0/9/130969280/lipojapolo.pdfIn PDF document text
    • http://vrouwenromansanagrana.com/uploads/1/3/0/9/130969243/xitire.pdfIn PDF document text
    • http://www.canativeseeds.com/uploads/1/3/0/4/130476205/563c690ca.pdfIn PDF document text
    • http://harrishelpinghands.com/uploads/1/3/0/7/130739751/68cb23b5f888478.pdfIn PDF document text
    • http://lexigoldberg.com/uploads/1/3/0/5/130551342/zovoxulenit-gojoz-xifisufasupab-luruwuj.pdfIn PDF document text
    • http://micahperkins.us/uploads/1/3/0/8/130873995/finagopipizo-bimovikutiv-vorisanajamidi.pdfIn PDF document text
    • http://woodgatebeachkayakandpaddleboardhire.com/uploads/1/3/0/5/130541743/javufosat.pdfIn PDF document text
    • http://clinicalmassagealternative.com/uploads/1/3/0/7/130740504/6422123.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_off00007b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B38 7668 bytes
SHA-256: c61078331287342ae7cb6521d9083d7df8570dddbe0a2f2c95393add8b8d2b05

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