Malicious PDF — malware analysis report

Static analysis result for SHA-256 489013428367ec1f…

MALICIOUS

PDF

43.4 KB Created: 2020-10-17 06:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: d42b32de0e026e15cb0dc2496dc3f152 SHA-1: 15ecd646d2dbad0172d1007642736d3c1f3f0ff3 SHA-256: 489013428367ec1f01cd8578f20c3775b77ccc60be7736ae0d49ca3c885e514c
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://gettraff.ru/strik?keyword=mp3+%25C5%259Fark%25C4%25B1+indir+mobil In PDF document text
    • https://vogizezadu.weebly.com/uploads/1/3/0/8/130814341/cab01ed608.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xizaxamuxive.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/dojegete_nodojenoziwa_nenobobivonig_jenowisixor.pdfIn PDF document text
    • https://zapirawega.weebly.com/uploads/1/3/0/9/130969804/mivejuxida.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/garanimeretixe-berap-rivepimomiji-diboduburez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/boxebozasofukewaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6787/3182/files/782243217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3972/2138/files/let_it_be_me_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6799/7852/files/ikea_brimnes_tv_stand_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb8270b9-4b3a-4556-8252-19d4ee1fb44b/ramuh_summon_ffxv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43eeff13-59f8-49c5-af70-e3413078c84d/8783291524.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e79dc28-e1f6-49d8-8696-7606eccc5f34/23183190697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a48a7f1-814a-4bc1-a575-f8a1a43f9e26/38009858069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8829/8662/files/fewira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/1805/4555/files/87466646067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4109/8398/files/soccer_heads_premier_league_2016_17.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0046/4038/files/ligisaguponej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09567050-4275-44fd-892b-4536644a326c/gepolazub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b479a4e-8056-4255-8199-64a1761d5593/dobido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c192e31a-24a0-42b4-aead-7a6c2b1e0941/kekagovivafefo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d986a31d-cb48-441e-9b54-1078b1a8c2e6/vinifadoruti.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
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000516c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x516C 5580 bytes
SHA-256: 6658c5c8b9a3d525e3ce5c17bc12711574f5928ef2db85a2356b2d038b6bbb1b
font_01_sfnt_off0000644f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644F 11808 bytes
SHA-256: 03a5a22c3825da34b1ba126c0bca4baef307bc08f770951ce2e3e0b36aea18f7
font_02_sfnt_off0000892c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892C 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e