Malicious PDF — malware analysis report

Static analysis result for SHA-256 8985537dfa6f4e1a…

MALICIOUS

PDF

49.4 KB Created: 2020-07-29 15:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e667326623ea3ce382d12ccd16d0be5f SHA-1: 434d162d5aaef5e9d8c1f9c86a7796daf567424f SHA-256: 8985537dfa6f4e1aa84b0c62292ac3ecd68fcf79a590fc66eab41f8fc29bfe25
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to a redirector domain, ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to pregnancy, likely to disguise the malicious intent. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious document designed to redirect users to harmful 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.com/pify?keyword=cambios+psicologicos+durante+el+embarazo+pdf In PDF document text
    • http://files.anggonolab.org/uploads/1/3/0/7/130738596/divererofafewiz_natibuzugol_miwimofolijijis.pdfIn PDF document text
    • http://files.middlelanefarm.com/uploads/1/3/1/3/131380210/gonufujozirunub.pdfIn PDF document text
    • http://files.makewonder.blog/uploads/1/3/2/6/132680932/detogap.pdfIn PDF document text
    • http://files.functionalwitchery.com/uploads/1/3/1/4/131453917/32be6033ccd2c.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/1/0430/6193/6285/files/naxefiwiwuzovopuwawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/nofezukotutox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4453/files/57221231617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4722/2422/files/forumoriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5010/6018/files/winegudowesivarogevujem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/bosaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/77999108755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3670/files/96333083016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/76887291285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/gobitabapeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/52652324066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/kovafisewedakewafif.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F98 5568 bytes
SHA-256: 6802f207453c4b6ea20b4a6fec8e95f822b6322d71e517f3fbb4db83be416067
font_01_sfnt_off0000926d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x926D 11036 bytes
SHA-256: 116fb9ae7aa1b0b2bf58db94339a2c25f34d8b610786bd26698c32051f6d9f70

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