Malicious PDF — malware analysis report

Static analysis result for SHA-256 592ef6048bb16973…

MALICIOUS

PDF

61.3 KB Created: 2020-08-18 16:27:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd4b1480372dbcb196e99fbaf3a7986b SHA-1: c6c4a331984ed64d68b0f76867078f04e1c03e3b SHA-256: 592ef6048bb16973d7daa6bfb36a09dd960af9016f31ccb031adffc11d0085db
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is known for malicious activity. The document body and embedded links suggest a lure related to 'Nvidia shield tablet firmware' and a large number of other PDF files, likely for SEO manipulation or to obscure the malicious intent. The ML classifier 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=nvidia+shield+tablet+firmware In PDF document text
    • http://files.anandoyoga.com/uploads/1/3/2/3/132302970/gominakapukukuzolasi.pdfIn PDF document text
    • http://mikeliki.patriciablackmoor.com/uploads/1/3/1/0/131069839/9565446c61786.pdfIn PDF document text
    • http://files.warmnightcandles.com/uploads/1/3/0/7/130775707/mafosan-temivadoxuxu-zereru.pdfIn PDF document text
    • http://bosipuri.awakenyuma.org/uploads/1/3/0/7/130775169/gunanime_fekomebibuwinif.pdfIn PDF document text
    • http:///ota-downloads.nvidia.com/otaIn PDF document text
    • http:///ota-downloads.nvidia.com/ota/data/posted-roms_romuploader/external/productionBL-droid-signed-wx_un_do-full_ota-1928188-1006.1489.2017112002150.zip-justIn PDF document text
    • http:///ota-downloads.nvidia.com/ota/ota/dataIn 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/1/0437/6815/2216/files/best_wrinkle_cream_oprah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6642/4486/files/cambridge_english_grammar_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/20582052844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8097/4490/files/bengali_spiritual_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5387/files/77658730225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/vanisadafewuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0532/1109/files/62818965548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/74895534543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3548/2529/files/attendo_informazioni_in_inglese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/sumotezaravagewasaduva.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA6 5408 bytes
SHA-256: 2b6330af6a58a364c9196cadb8adc39bc951efe22ff489faa403fea51c6d8098
font_01_sfnt_off0000c1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FC 11260 bytes
SHA-256: 7588e9c029e3fe1fe589a0e54fb0ac77c4c1e7789d0de64850910902d7c21861

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