Malicious PDF — malware analysis report

Static analysis result for SHA-256 b964a153d87f6afb…

MALICIOUS

PDF

46.3 KB Created: 2020-08-16 21:28:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06e3a1ad1f0c18533e9e0298d9e6a58a SHA-1: 76d5cf6b78be48452286d0745a07573606f66a43 SHA-256: b964a153d87f6afbfc2e9349b2ea4b9d200b2e040c521a4b6d84b5243ea4d4bd
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with the primary link directing to a known malicious redirector. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=android+tv+box+malaysia+yang+terbaik', which is also present in the heuristics. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=android+tv+box+malaysia+yang+terbaik In PDF document text
    • http://files.humanist-sociology.org/uploads/1/3/1/4/131409755/f0e310b82d5.pdfIn PDF document text
    • http://files.magnetvideolab.com/uploads/1/3/1/4/131408432/kerafirujesutav.pdfIn PDF document text
    • http://files.ccbcmassagetherapyprogram.com/uploads/1/3/1/4/131438616/rugokigadu.pdfIn PDF document text
    • http://files.triedandtruegranola.com/uploads/1/3/2/6/132681579/nefiwigamiw.pdfIn PDF document text
    • http://files.jlkarchitecturaldesign.com/uploads/1/3/0/7/130775632/juwapenanidi.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/1/0449/2309/3147/files/advanced_life_support_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4443/7144/files/60981113128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2829/9428/files/law_school_unofficial_transcript_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/tepitavajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5205/4181/files/xubasivozofurivevunas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5068/6874/files/23827516839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/busted_television_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9289/4115/files/daxavulalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9018/1286/files/retonevupebesubatufaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/xanelelukavanuzuvoxibodod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7614/0710/files/gba_4_ios_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5569/3470/files/amazing_grace_by_mary_hoffman.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000649b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649B 5356 bytes
SHA-256: 63f738401f05868cc6395bc41c68f7ae11ed996adfcf3b20db12a9169c9c46f7
font_01_sfnt_off000076c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C0 12140 bytes
SHA-256: 51fd82ca21e9decf5171a31832412d11fddf5af335eb653bc0bbc6386c1c0bd3
font_02_sfnt_off00009e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E20 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71