Malicious PDF — malware analysis report

Static analysis result for SHA-256 a19f0baadd784056…

MALICIOUS

PDF

42.0 KB Created: 2020-08-26 10:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02909c2fdc5816bf701f082375923664 SHA-1: 690b0beca7083dd91ff81a29451a0f54ccb13c55 SHA-256: a19f0baadd784056f7c10d767fa1cbd97fc73c6e53ff64ac40708b298c6ce656
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicating a link farm. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=code+nw-+1-+19', which is likely used to redirect users to a malicious site. The presence of numerous other links, many hosted on cdn.shopify.com, suggests a broad distribution effort. No scripts were extracted, and the document body was largely unreadable binary data, but the heuristics strongly indicate a malicious redirection attempt.

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=code+nw-+1-+19 In PDF document text
    • http://files.asgfitness.com/uploads/1/3/0/7/130776267/gewawakatupuxajinin.pdfIn PDF document text
    • http://files.brandikphoto.com/uploads/1/3/2/7/132741109/silajexuga.pdfIn PDF document text
    • http://files.simplydivinesuds.com/uploads/1/3/1/4/131407812/23f3d849.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/1/0441/1087/2728/files/game_android_online_rpg_terbaik_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/janesirewogupizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5070/9671/files/cardiogenic_shock_management_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/carnival_of_rust_audio_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2499/6773/files/53975436763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/asignatura_estatal_chiapas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/81101023859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/93788078184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/34122839542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1961/5901/files/chili_s_to_go_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8976/4245/files/active_passive_verb_forms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/cido_estearico.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 8

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_off000069d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D0 4540 bytes
SHA-256: 6a249fa21e77dd2522c15122e10f53312b5156993afe1c70f6bc43a2ad5d6ecb
font_01_sfnt_off00007979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7979 10048 bytes
SHA-256: 9ddd1885b43aec18c9617dc37db59c16266c1ce507d4b4c3997181091b3330fc

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