Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08ea98afafba1d6…

MALICIOUS

PDF

43.7 KB Created: 2020-08-13 21:52:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b836ee4026f848bc1bb6c696c6fe443c SHA-1: 3d6d70f519a20267f20f2d60dc73276bc0c0dd08 SHA-256: d08ea98afafba1d6c952c57d0a6ef7e93417234fc257fac0503131608f7095ef
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it's a malicious redirector link, specifically pointing to a lure for 'whatsapp business app for laptop'. This link redirects to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm designed to distribute malicious content, likely a social engineering scam.

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=whatsapp+business+app++for+laptop In PDF document text
    • http://files.africanpromiseexp.com/uploads/1/3/1/4/131407135/deramidokuk-pifomekutuzup-fipavisotizawol-tovowepedoru.pdfIn PDF document text
    • http://files.bfacedbeauty.com/uploads/1/3/2/6/132681352/a9ff8f5f767.pdfIn PDF document text
    • http://xefijuzow.sdoster.com/uploads/1/3/1/6/131606289/segir_jugegi_kuluwukabezoto_zodajixa.pdfIn PDF document text
    • http://files.squarelakeassociation.com/uploads/1/3/2/6/132682913/morerokiv.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/1/0430/8510/3258/files/wolod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/80794464005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3549/0461/files/nagivusedejiposawosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/brayton_cycle_example_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8400/5032/files/88357004759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/25932014880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2857/6416/files/roxekupofudimatamidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/bhagwat_puran_sanskrit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/2953486643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/21615050533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/62947657888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3406/files/nuwaboloxokenuripekozuvow.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_off00006b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0A 5144 bytes
SHA-256: 02003d0f06ece71a613f61aa82ebd70ea11c700849173ce5d28a1104766cd01a
font_01_sfnt_off00007c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C86 11108 bytes
SHA-256: c0d267b106ac9dbca93217961b5f2c73197b55c0b6db056f8bcd4207ad157e4d

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