Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a3c2c951a00c75…

MALICIOUS

PDF

42.8 KB Created: 2020-08-14 16:23:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9063b29e6103d3354ce670977221ce92 SHA-1: 1ad597ae94c957f806e99721f84e138cd911f234 SHA-256: 97a3c2c951a00c75104ab46c939b08086d9e2eb6c7ba0ed8dfe73ec81361fac0
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=kachche+dhaage+vinod+khanna+songs'. Additionally, another critical heuristic indicates a PDF link farm, with many links hosted on cdn.shopify.com. The document body, though heavily obfuscated, also contains the same redirector URL and several other URLs pointing to PDF files. This suggests the primary purpose is to redirect the user to malicious content.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=kachche+dhaage+vinod+khanna+songs In PDF document text
    • http://files.2ndwindfitnesslv.com/uploads/1/3/1/6/131607522/vufikifo.pdfIn PDF document text
    • http://files.clevelandcountymastergardeners.org/uploads/1/3/1/3/131381553/vulisav_nadibozo_kaboju.pdfIn PDF document text
    • http://files.reddevilsalumni.com/uploads/1/3/1/3/131382395/giwosiz_jivilupoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28603075132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6440/files/asignatura_estatal_primero_de_secundaria_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/jowitukidiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/72853550205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45397061855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/91652129216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8367/7339/files/family_case_study_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9041/9620/files/77221430636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/pifobapokobudapena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/zonuzapapegizewilipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/pojepodufe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D07 5168 bytes
SHA-256: 10db78ad8bc8eb4302bdc47ef26ee4b177fd6fb8a3e9b5f4956c608201d0ee8b
font_01_sfnt_off00006e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9E 10376 bytes
SHA-256: e9dc95017d95dac5afe71091a5174b2d1bbae9babf1097fda0610de7a1c17a31
font_02_sfnt_off00009218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9218 3008 bytes
SHA-256: 4ed434047ff14b123882dc69f44bfbf539af6f71ae850dc76c5358875d2385e8