Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f4e259d0547f3cc…

MALICIOUS

PDF

37.6 KB Created: 2020-08-23 09:05:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d634eb184bf42c446474b5f1947eb50b SHA-1: 5f9418e51f17db06670365680dc45f317b1d7ce0 SHA-256: 7f4e259d0547f3cc61864772b92fe3b5d7bf4358270356b93d5257394d11f9c3
234 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to redirectors and algorithmically generated URLs, suggesting a link farm or phishing attempt. The document body text, though partially corrupted, includes a URL that appears to be a lure for downloading a movie, which is a common social engineering tactic. The presence of multiple PDF links and redirectors indicates an attempt to lead the user to malicious content, likely for further exploitation or credential harvesting.

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.ru/pify?keyword=chocolate+2005+full+movie++480p In PDF document text
    • http://tozis.hodaemam.com/uploads/1/3/0/9/130969060/55c2f78a9340ff.pdfIn PDF document text
    • http://files.anitagrandt.com/uploads/1/3/2/7/132712080/2276922.pdfIn PDF document text
    • http://tawoled.littlebitofheavenadoptionreferral.com/uploads/1/3/0/7/130776054/banizujomodupi.pdfIn PDF document text
    • http://files.comfortltc.com/uploads/1/3/2/6/132695646/katafujuwidu_nitigaminizo_fevoliko_baganitav.pdfIn PDF document text
    • http://mogasiduw.richardlangchandler.com/uploads/1/3/2/6/132696212/tavijenisovi.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/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/lavopiwulixawox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1328/4511/files/jusilofimizifetesog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6404/7269/files/93268953851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/91976575894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0577/9878/files/wafiparugodivalawetuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/puzasimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1003/8683/files/90434923198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/universal_studios_theme_song.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_off0000521c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x521C 5628 bytes
SHA-256: 91d5ab7bf815f344c7eaea591917a72a9e942feb152d89aa885f78a913cf6610
font_01_sfnt_off00006531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6531 10780 bytes
SHA-256: cf890af5c2e07ad07c9b55a1619bf15feb4402e67931fe0ca727aabcd9476b59