Malicious PDF — malware analysis report

Static analysis result for SHA-256 04e444e291487def…

MALICIOUS

PDF

115.9 KB Created: 2020-08-13 04:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aea0636a82294a4f1834ee05d565cdd4 SHA-1: 826fe60532007aa9733050d8ed5a53aebc7f69d6 SHA-256: 04e444e291487def1a6ce65a87a125819884a0d3fe927d232d6ca541f3a77287
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.ru) disguised as a free download. This indicates a phishing or scam attempt to direct users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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=good+aquaculture+practices+pdf In PDF document text
    • http://gonir.safetygradelicensure.org/uploads/1/3/1/4/131453284/021193773df6ca.pdfIn PDF document text
    • http://files.mattnevergivesup.org/uploads/1/3/1/8/131857758/seregudokupi-gezovi-sinodate.pdfIn PDF document text
    • http://dosana.nssdoctors.com/uploads/1/3/2/8/132816036/d18dd3.pdfIn PDF document text
    • http://files.townofclevelandal.com/uploads/1/3/1/8/131856326/bazemufuvofijuvi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/26252356119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2508/files/thomas_kuhn_copernican_revolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/15676200962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/census_2020_affairscloud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/veobecn_a_anorganick_chmia_mogrovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6857/8210/files/kenya_census_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/kifoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/sadekodubewogedez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kozaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6272/files/introduction_to_data_structures_and_algorithm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/lowewonufadelobapejux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/patikugefoju.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000163b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x163B4 5080 bytes
SHA-256: 7fdee344d9b0c16dff3a8bb2cf5779edb291aa8d2aeb1c1404a02a4f6523fc8c
font_01_sfnt_off00017507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17507 6092 bytes
SHA-256: b43b749ee9ffd4ca36eabbb5af6503c2471982878b0f0ef74541bcb6abf95619
font_02_sfnt_off000184d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x184D9 15336 bytes
SHA-256: 22ac3eb1f466661e07db2f161eba03942e8a619c0c342fcde4521c659e730c51
font_03_sfnt_off0001b3d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B3D6 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3