Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec700850e123202…

MALICIOUS

PDF

41.1 KB Created: 2020-08-25 05:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6e42e658cb52d4f958e9c1d51be6fb2 SHA-1: 44534c17854fcabe3c20982b4b0c9862df68434d SHA-256: 8ec700850e123202667d0d1d1e55b8aa47f56e680368576fc255eef2e15b32cd
162 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text that suggests a lure related to a game, likely to entice clicks on the malicious link. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=to++game+temple+run+2 In PDF document text
    • http://kusivo.idealdrycleaners.co.uk/uploads/1/3/1/6/131606201/717b5217ab8ac.pdfIn PDF document text
    • http://files.valley-oak-nursery.com/uploads/1/3/0/7/130740069/xitafaxuvax_moxoluriv.pdfIn PDF document text
    • http://dobax.berlinproject.donaldunger.com/uploads/1/3/1/8/131856772/d9c70486dd0d.pdfIn PDF document text
    • http://files.naluscientific.com/uploads/1/3/0/7/130739072/nedamanojuposodig.pdfIn PDF document text
    • http://vilunum.tiffanybryson.com/uploads/1/3/1/3/131379012/zaxijoz.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/1/0432/8970/6664/files/aqua_aerobics_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3957/9546/files/social_media_campaign_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2368/6056/files/gediler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8987/7408/files/10427906345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/67440839864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5346/4214/files/tipagofivemedomuzegix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0764/6630/files/2000_ford_ranger_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1261/8402/files/litog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/bodybuilding_exercise_chart.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 2

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_off000063f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 5040 bytes
SHA-256: 19324e6f00715f4d94b27b4544ae6118d22d7a2e4df00d356e01fdeb8ff43b0c
font_01_sfnt_off00007510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7510 10192 bytes
SHA-256: 010b2b8ab31df1e7477803d84f15f141d427c45b6cfdbf0660f2d2a5e1f4155f

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