Malicious PDF — malware analysis report

Static analysis result for SHA-256 75e04c712d2a9ec2…

MALICIOUS

PDF

44.1 KB Created: 2020-08-17 17:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e31177f80fd681a826a45d839a7bf47 SHA-1: 5da845107a599c945a028fd63154a8094f491604 SHA-256: 75e04c712d2a9ec25def6e16ebf29da16206f62eb3559d311256eb159d22f41d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) disguised as a free download lure. The document body, though heavily obfuscated, also contains the primary redirector URL. This indicates an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=anatomy+of+nose+ppt+free In PDF document text
    • http://files.illuminaskincaremassage.com/uploads/1/3/2/3/132303068/6006168.pdfIn PDF document text
    • http://kugulijur.boxcarblog.com/uploads/1/3/2/6/132682883/8422159.pdfIn PDF document text
    • http://files.danwickman.com/uploads/1/3/2/8/132815190/c97acde4fd1.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/1/0429/6150/2362/files/nfl_week_1_schedule_spreadsheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/80134972724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5027/files/chmod_400_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/attaching_file_in_word_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/gofefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/jurnal_manfaat_cacing_tanah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/84299788588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/tudofuzewuwewetere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3030/5178/files/vuxubovivujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2452/1128/files/81434710432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0482/8580/files/xiderodonipefumowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/69942068305.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: danwickman.com 7 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 4848 bytes
SHA-256: a12de775bc7ca6223e8fc50efec01f04596653b43615f7051e9262a13887e42a
font_01_sfnt_off00007101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7101 10564 bytes
SHA-256: 3353ec5274f8a06f351288ed9de361a6110c748a858175c72ed598cf609c28d2
font_02_sfnt_off00009503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9503 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34