Malicious PDF — malware analysis report

Static analysis result for SHA-256 039d073c87c2e49d…

MALICIOUS

PDF

53.5 KB Created: 2020-08-17 16:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a058524416b5b3d57c3288069eb8955 SHA-1: ee8af03fb61243b3ae63f47c04e228461fd7b92c SHA-256: 039d073c87c2e49df22103dc8c090cef6e0d54ccd7020fe04bbaab409d15d9dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body also contains the same malicious URL, suggesting an attempt to trick users into downloading applications or other files. The presence of a link farm and redirector indicates a phishing or scam attempt.

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=akoam+apk+android In PDF document text
    • http://files.fbcpc.us/uploads/1/3/0/7/130740508/vugezinuba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9367/2604/files/bengali_books_free_download_site.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/7252272360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/lijedot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3106/8823/files/45359838522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/prodigy_hacks_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/lightup_full_version_installation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/44053673781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9045/0334/files/34159272047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8534/8510/files/86142195354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0630/4162/files/semilubovox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/casual_vacancy_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8281/files/xulobipodujonase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/54413479271.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00008c16.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8C16 25832 bytes
SHA-256: 02a143f86bcca3bf4b01099a3b780f755b588e96b24c5faa85a90806a6ed536c
font_00_sfnt_off000058a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A9 4540 bytes
SHA-256: 8a1aefaedbe5621243e416cbee21523a9106ed87c395947dd3bb28d5c278c85a
font_01_sfnt_off000067dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DC 10508 bytes
SHA-256: ad62cd99758242b3d80093d3fda318764983889995a2a93403559a51491e17fb
font_03_sfnt_off0000b942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB942 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378