Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c5d9ea13665937…

MALICIOUS

PDF

40.6 KB Created: 2020-08-06 03:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bed2ecc80ad6be8d79a2c9d424c847c9 SHA-1: 0503a5811e0c56ba075f098b03bbb9a6c9519106 SHA-256: 05c5d9ea13665937efb79d94e0bee5381aaa6591cf1330e3844f1fec37dbe237
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains URLs that appear to be part of an SEO link farm designed to trick users into downloading PDFs. The ML classifier strongly indicates maliciousness, supporting the conclusion that this is a phishing or scam lure.

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=accumulation+by+dispossession+harvey+pdf In PDF document text
    • http://files.meiageddes.com/uploads/1/3/0/7/130776407/xubopopimidafaxefeza.pdfIn PDF document text
    • http://files.mssierzega.com/uploads/1/3/1/3/131381374/a3926a12c.pdfIn PDF document text
    • http://files.tammrabroughton.com/uploads/1/3/1/8/131856456/banamidatu_fumorowapikuz_dibebotimazas.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/1/0429/8843/7655/files/kugikisuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/52979848068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/29637105157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9847/0555/files/attributes_of_god_lawson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/pdf_to_word_converter_apk_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5921/4501/files/kerabegozepobinexufafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8315/3056/files/nimejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/abbreviation_of_journals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2333/4565/files/50885219366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9947/8434/files/ffxiv_throne_gem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9931/5619/files/parupakimowukexok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/tibil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/rei_exchange_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5317/1356/files/1010326005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/autumn_leaves_improvisation_piano.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 3

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_off00005f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 5684 bytes
SHA-256: fcc1b15a6a2207c8b06ad26b88f3aaf0da2b8a48efcf187d4bb6dd5f83124313
font_01_sfnt_off0000725f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725F 10152 bytes
SHA-256: ffc7c59f123b3441b02327943744c5eda29d1b774ec3c077de76d67bfffa8f85

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