Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6747c44bdc8f593…

MALICIOUS

PDF

102.6 KB Created: 2020-08-12 03:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e73565b8ab25cc60d518ac8f9ee0a84 SHA-1: a8d2ee6a22597929cde82f68012f3fe05f11b930 SHA-256: a6747c44bdc8f5934d9d730ad122f2ca82331105533acc49559b6952a326124b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=nymphaeaceae+family+pdf'. This suggests a phishing or scam attempt, likely to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The presence of many external links, including benign ones hosted on Shopify, indicates a link farm strategy to improve search engine ranking or distribute malicious content.

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.cc/pify?keyword=nymphaeaceae+family+pdf In PDF document text
    • http://files.collagen.solutions/uploads/1/3/1/4/131454345/sezotato.pdfIn PDF document text
    • http://files.marksoftime.com/uploads/1/3/0/7/130775795/dunubo.pdfIn PDF document text
    • http://zetob.wcrwestmichigan.com/uploads/1/3/2/8/132814930/24f54ef55554770.pdfIn PDF document text
    • http://files.tsidieselworxparts.com/uploads/1/3/0/8/130814475/dd034a.pdfIn PDF document text
    • http://julip.mariapiotrowska.com/uploads/1/3/1/8/131857631/fikewedigoziso.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/1/0431/8206/3777/files/45470548213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/ca_ipcc_law_amendments_for_may_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/brche_ordnen_aufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/madukaziludima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/97367332366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/59896754847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/stuart_fishing_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/how_to_find_final_temperature.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001350d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1350D 4684 bytes
SHA-256: 24a551d29e968d22f5a9d630a3db290879cae6681736422ea2716a825b0550a3
font_01_sfnt_off000144fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144FC 10696 bytes
SHA-256: ce8c906d0b615d02f804ba35538723f31f3bcd22089f6fe71aa6ee48f2482dea
font_02_sfnt_off000169ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x169AE 16136 bytes
SHA-256: ff430b11a8d17d420935ba1df5c0023e02d7a8943065c92946ec535e67d4a50a
font_03_sfnt_off00017e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E99 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176