Malicious PDF — malware analysis report

Static analysis result for SHA-256 deebcf8fd3071c9a…

MALICIOUS

PDF

60.4 KB Created: 2020-09-10 14:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d4bfde0264257ed23618f9eff135311 SHA-1: 0234afd308e94d6e6e5e8f5524c18a6669112630 SHA-256: deebcf8fd3071c9a9326912975fbaf551b0f026a2f7f502ec29d16b7975d9100
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.me', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation or distribution. The presence of a visual download button further supports the lure to click the malicious link. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/pify?keyword=busybox+apk+android+4.+1.+2 In PDF document text
    • http://files.thefrostedsugarcookie.com/uploads/1/3/1/3/131398224/79e4469.pdfIn PDF document text
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.pdfIn PDF document text
    • http://files.monheganschool.org/uploads/1/3/1/4/131482826/6121026.pdfIn PDF document text
    • http://files.audreylewisinteriors.com.au/uploads/1/3/2/3/132303181/fokubopisasokiju.pdfIn PDF document text
    • http://files.alanvanim.com/uploads/1/3/1/4/131437689/3a47951.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/1/0439/3785/7691/files/auditoria_de_capital_contable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/45100168154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7254/4150/files/bully_game_free_for_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5658/5111/files/wudesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7252/8292/files/9307635488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6040/3103/files/84679120429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/contagion_film_question_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6471/files/rutowixoxebagazojitupix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8841/9741/files/listview_set_adapter_android_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1175/files/plus_two_business_studies_short_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1619/1138/files/convert_cdr_file_into.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/1408/7846/files/bissell_steam_cleaner_parts_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/xulewititovufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1029/3669/files/73285514626.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE47 5648 bytes
SHA-256: a65b35f2360cf057161d7b7d0ebc7fdc0f8f3062e0694556dab550f7fc7aaae0
font_01_sfnt_off0000c1af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AF 10144 bytes
SHA-256: c302dc2edf66f708e0aad5f14871e02cb2236e8dbd7b08d4ce7ebafcb50fcabd