Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abc0b4c26b5bd16…

MALICIOUS

PDF

37.6 KB Created: 2020-08-16 13:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0961dad22041949473118f75d0744a0b SHA-1: 0f018e58e1e6a5318381c991e2cf099c636f3a62 SHA-256: 7abc0b4c26b5bd1688e76eae819f6d13e10ebf61d4f300e642e03862a001223e
162 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting an attempt to lead users to malicious content. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the presence of embedded URLs and the link farm heuristic point towards a phishing or redirection attack, likely delivered as a spearphishing attachment.

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.ru/pify?keyword=abhimanyudu+movie++jio+rockers In PDF document text
    • http://files.monitor-io.com/uploads/1/3/1/6/131606284/dumoxuwefe-sosew.pdfIn PDF document text
    • http://pukeme.raychellemuhammad.com/uploads/1/3/0/7/130740044/puved.pdfIn PDF document text
    • http://files.arwarwick.org/uploads/1/3/1/1/131164479/nawad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5589/3928/files/cambridge_vocabulary_for_ielts_advanced_band_6._5_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/77102685073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2544/0669/files/carlson_biopsychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/dakorupejoganifobud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5022/8119/files/sosapulavub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0728/files/tetajinuvowex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8754/3964/files/barron_s_toeic_7th_edition_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5341/6601/files/96722703103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/tubufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/mijavajovapemuw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ABA 5580 bytes
SHA-256: a645caf48f629bcbef30ac6d3077c49b62f4265011bd970aa05440d3f9bad982
font_01_sfnt_off00005d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D86 2024 bytes
SHA-256: 86663aae7a0d2238f9dd8137f7f182a06c6039e9fc44afdad52b6ca665afcb9b
font_02_sfnt_off00006747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6747 9992 bytes
SHA-256: d956cae5a0741806d362b19b1d4e136642d2d909c3771dd9f3fc12657656924e

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