Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee6e0d87bc71f91…

MALICIOUS

PDF

37.5 KB Created: 2020-10-28 05:50:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 6f29e33e4dffb79fef2cfb6aa7bbb67b SHA-1: f4ac98960389c9affe88e1a66b144a012803d9e3 SHA-256: 5ee6e0d87bc71f9171e0d914454290f794951ebff8705f826e42471f2ff3791b
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://ttraff.cc/pify?keyword=ap+environmental+science+practice+test+chapter+1 In PDF document text
    • https://tibaxefuxi.weebly.com/uploads/1/3/4/0/134017075/fijerenesirutam-vutozemagojo.pdfIn PDF document text
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/nagogivewufila.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000545f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000545f.bin)
    • https://cdn.shopify.com/s/files/1/0435/2730/7423/files/dd_aboleth_minions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/radford_analysing_english_sentences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/5130/0014/files/john_brute_force_ssh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/wumiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b00b652-f1a7-46e9-a272-bbd84f0cbafe/gatudovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06124a1f-786f-45b8-8085-7c9516577bf5/dimitajoriripajefuno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22bc84ba-4042-41ad-89d1-8e10e06f4358/chhello_divas_full_hd_movie_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604b8c67-5f52-4962-9f6c-0e8ed1182da8/53593901166.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0e2388a-2188-402e-a5d9-79d5ae4086ff/napizikesawewow.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/mozojazega.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/pefixisarubevonasij.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/pdf_auriculoterapia_esquemas.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/protein_structure_and_function_petsko_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/ashtanga_yoga_8_limbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1370/8182/files/bixenibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7677/9165/files/76480490521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/xomupatusolewameri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/temple_run_game_free_download_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0077/2246/files/glow_in_the_dark_tennis_balls_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8240/6815/files/naruto_shippuden_game_android_offline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1791/6575/files/dozutabipaxumezegekawa.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 extracted file (font_00_sfnt_off0000545f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000545f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545F 5276 bytes
SHA-256: c000e77a1b5c039cfbf81a229f6f177aa226e5820db74a9ad010023d28071f5c
font_01_sfnt_off00006621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6621 9984 bytes
SHA-256: ebb0c27ccbd5e54da31376772a5fabed5a1975ac2bf33e25221cc7e17a4caff8