Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae70113ef5a89fb2…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 21:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a380589df0472157545c8a55ae7e140 SHA-1: 403a238b38fa0d44f7d43244ffd19d9894185c2b SHA-256: ae70113ef5a89fb2bf6fad29250cadba672085684efb0b3e41162cdc9d779f42
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is known for malicious activity. The document body, though heavily obfuscated, contains the text 'Attestation de formation word gratuit' and the malicious URL, suggesting a lure for users to click on the link. The ML classifier also strongly indicated maliciousness.

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=attestation+de+formation+word+gratuit In PDF document text
    • http://files.brahmansystems.com/uploads/1/3/2/7/132712207/51933.pdfIn PDF document text
    • http://files.jewelzandbling.com/uploads/1/3/2/6/132696598/8576686.pdfIn PDF document text
    • http://fanifuk.ricepaperdesigns.com/uploads/1/3/1/4/131438137/sewizuxonanu.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/1/0429/6019/1637/files/xusebopume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xamunodobesezuwenetubaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7184/0161/files/fmea_aiag_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4858/2820/files/ruxewizajenesam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0860/5859/files/75820527855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1399/5672/files/careless_whisper_audio_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1087/2728/files/how_to_cope_with_stress_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9017/files/rurapijutebatasalikebot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/canon_eos_60d_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/simple_rental_agreement_form.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 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B54 5156 bytes
SHA-256: 16c079874f12ed8c6687fe5b957456fed7e2ddc0debf4dd4fa3ac0f29c64bc87
font_01_sfnt_off00006cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD1 11396 bytes
SHA-256: 6be4bed71469362f34007dce1028fcd87443ef51c48ee0b4be245144acf28008
font_02_sfnt_off00009120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9120 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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