Malicious PDF — malware analysis report

Static analysis result for SHA-256 eafa5e7b60b173b5…

MALICIOUS

PDF

72.6 KB Created: 2020-08-28 04:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98f3204af62999f5b17a105bf39a540f SHA-1: f0ae4a1ab191d298e0289823b6b2066eb0b0acb3 SHA-256: eafa5e7b60b173b5327466b83272eae0eccb3b55d81e2c31493c1c14cbbce07d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=yes+i+am+avdol'. This indicates the document's primary purpose is to redirect users to a potentially harmful destination. Additionally, the file exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content through multiple benign-looking hosts while masking the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=yes+i+am+avdol In PDF document text
    • http://files.marneapolo.com/uploads/1/3/2/6/132682585/c732887.pdfIn PDF document text
    • http://files.allmongoliantours.com/uploads/1/3/0/7/130739699/pumol.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/1/0433/9970/8821/files/70842410458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3187/8049/files/ashampoo_photo_commander_16_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakuxosisubesabemobaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1188/9573/files/meneforevixafewurudekasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0964/2394/files/cefalotina_vademecum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/vunosobibomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9568/7317/files/16603838001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0906/4603/files/xupediwaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7480/4119/files/86113889047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8270/3257/files/munopafozazesagezatufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/zitegi.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A7 4144 bytes
SHA-256: 4f44e5cd46119ed73b4625bc7af41c79bd2c13bcef54ba0f08a8f0e47b4f68e4
font_01_sfnt_off0000d441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD441 4896 bytes
SHA-256: 7d097c4d66450bef36a1fd277883151cf998d6040470f62d6029ce03f6842abf
font_02_sfnt_off0000e4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E0 15572 bytes
SHA-256: 4c3f710452705de58fef5da9168bd22a27d1f15ffa48e292d92c070ed0879544

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