Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a924e41b81cc0bd…

MALICIOUS

PDF

53.7 KB Created: 2020-08-19 15:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54fc603266539537e4c66022cc0cf831 SHA-1: 67f887a32573c0d784cb3289f047dd337afa2a14 SHA-256: 7a924e41b81cc0bdcc63b60092f6f85b9bdabe689f7bc7a0468f2b7da008d28e
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to drive traffic to a redirector. The primary redirector URL, https://ttraff.ru/pify?keyword=drug+abuse+in+uganda+2017+pdf, is flagged as malicious. This suggests the document's purpose is to act as a lure for phishing or malware distribution by directing users to potentially harmful websites.

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.ru/pify?keyword=drug+abuse+in+uganda+2017+pdf In PDF document text
    • http://files.sulongtheatre.com/uploads/1/3/0/7/130776567/7840367.pdfIn PDF document text
    • http://files.gamersontheedge.com/uploads/1/3/2/8/132814272/3429765.pdfIn PDF document text
    • http://files.narrinspiceandsauce.com/uploads/1/3/1/4/131437276/9ceec2.pdfIn PDF document text
    • http://files.pacificplaycompany.com/uploads/1/3/0/8/130814535/kukakuga.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/1/0429/4246/4163/files/37474987751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9208/8734/files/fepevipibufezofegar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9050/1020/files/30333442898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/24753112409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4962/1406/files/vocabulary_lists_by_topic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/55631165352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/25929821284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/applications_of_cluster_computing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/precipitates_and_solubility_rules_lab_31_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8607/6309/files/43564268847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/pomepadogolebagazupan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/4115798586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0650/0769/files/amari_information_geometry.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
🗂 Part of campaign: narrinspiceandsauce.com 8 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000850d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x850D 5412 bytes
SHA-256: 6d07034c760d7b48fa672541207fdd80c458774a3adf9405fe01ca38b7096179
font_01_sfnt_off00009781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9781 10632 bytes
SHA-256: dfc25920e721fa7355b3d1df6b5e48dfc108fab5144411a1ee04d1f520e23ece
font_02_sfnt_off0000bbc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBC7 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176