Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b7d4308d5b8c9a2…

MALICIOUS

PDF

39.8 KB Created: 2020-08-20 10:50:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 052ed65e709de888e04bcef27cb4acc2 SHA-1: 45431e5aa4fd31be265f67aa782f3302102d5499 SHA-256: 4b7d4308d5b8c9a2d8bab746a24af833e387ab7ba4b2cc3840cec2e10288e65a
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one specific URL, 'https://ttraff.cc/pify?keyword=odia+bhajan++2018', is flagged as a known malicious redirector. This suggests a tactic to drive traffic to malicious infrastructure, potentially for phishing or malware distribution. The presence of a mass external PDF link farm further supports this as a method to manipulate search engine results or lure unsuspecting users.

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.cc/pify?keyword=odia+bhajan++2018 In PDF document text
    • http://files.mnjeweler.com/uploads/1/3/1/3/131380759/sopufapuf.pdfIn PDF document text
    • http://files.tribeyogacenter.com/uploads/1/3/2/6/132682790/vunakovinufaretere.pdfIn PDF document text
    • http://files.emeliewaldken.net/uploads/1/3/1/6/131606366/sipizilu.pdfIn PDF document text
    • http://files.emiliaskincare.com/uploads/1/3/1/0/131069808/jikenovuger_ririmi_derugofujoxe.pdfIn PDF document text
    • http://files.kenttreeservices.com/uploads/1/3/1/4/131409463/volobizubusilir_toves_gowokavelut_gebijawigi.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/1/0440/2066/2422/files/winter_dreams_sparknotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/jajenitive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5935/4517/files/husqvarna_mower_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/8313148957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/wazevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/simple_building_design_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/building_design_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3683/5993/files/pong_java_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/55069970017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/brothers_in_arms_mod_android_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7849/6935/files/cerita_sejarah_bandung_lautan_api.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4247/9000/files/55393714220.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000529c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x529C 5368 bytes
SHA-256: c3feb8580881f6efa60ba39704ae77a2d02cd7404ff82d76c806d935037c0a8a
font_01_sfnt_off000064d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D6 1936 bytes
SHA-256: 7420db9ec41012b263dff8e0d039d2a895961a6b4c1647eabbcd20f441fad98a
font_02_sfnt_off00006e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1D 10492 bytes
SHA-256: c5e4813add2719df24bac16fc50de724df19e0244b93eaca3f392339f1bd83b0

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