Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bc762ed99b7fe53…

MALICIOUS

PDF

38.3 KB Created: 2020-08-19 07:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5115f7a2d2396815df5b51af7ff4fe62 SHA-1: 545e8f4e96ef7576703af4b0a063d66035278518 SHA-256: 5bc762ed99b7fe5391dc05394895f78ea15fbd551ba1d049d269a8b58fa97c12
162 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and embedded links suggest a lure related to 'whatsapp status tamil mp4' to entice users to click on the malicious redirector. The presence of numerous external PDF links also indicates a link farm strategy, likely to improve search engine ranking for 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.cc/pify?keyword=whatsapp+status++tamil+mp4 In PDF document text
    • http://files.throughthelookingglassalice.com/uploads/1/3/2/7/132712323/zejerit-rowasolejepuro.pdfIn PDF document text
    • http://files.southeugenemusic.org/uploads/1/3/0/8/130873921/2300842.pdfIn PDF document text
    • http://bakasinu.michaelhadjimichael.com/uploads/1/3/0/7/130738531/4692345.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/1/0429/9633/4753/files/makazesonodofasunexap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/69918373674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/vutetat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0964/files/ncert_solutions_for_class_12_accountancy_part_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1774/0199/files/57517297410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/zifediwuzakof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/microsoft_word_art_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0937/4368/files/1994_ford_ranger_manual_transmission_fluid_type.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/kameziwujakodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/33996520956.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 4

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_off00004d95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D95 4612 bytes
SHA-256: 5c116c1dd2acf96c3edeef61a7b4ea324f1c841262d635142f1371815b570b1a
font_01_sfnt_off00005d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D47 9664 bytes
SHA-256: 09979974682a31d371865ccbc773d771ec5cdeb1a55266cceb9135d6cdd1474f
font_02_sfnt_off00007e59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E59 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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