Malicious PDF — malware analysis report

Static analysis result for SHA-256 74e8068546966047…

MALICIOUS

PDF

38.4 KB Created: 2020-08-17 02:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20ac1aaaae940abab2ce57f121da7929 SHA-1: 6e867d601181bb6886d0c9862629417d6242ecbb SHA-256: 74e8068546966047df47d59497224761587c56255db79301659f8477a0fadf69
194 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, indicating a link farm or phishing lure. The document body, though corrupted, contains a URL that is also present in the heuristics as a malicious redirector. The presence of multiple embedded PDFs and the ML classifier's high confidence score suggest malicious intent, likely to redirect users to malicious sites or download further payloads.

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.cc/pify?keyword=ulus+twin+platform+bed+with+trundle In PDF document text
    • http://files.eriniwanusalcsw.com/uploads/1/3/0/7/130739202/5904774.pdfIn PDF document text
    • http://bawipatun.kobanuniverse.net/uploads/1/3/1/3/131398589/fuluw_lopog_nukinogasufu.pdfIn PDF document text
    • http://files.kristinsfinefoods.com/uploads/1/3/1/3/131379554/falobojim-watadoro-veposu.pdfIn PDF document text
    • http://files.stringsforhope.com/uploads/1/3/1/6/131607230/57b4542b17.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/1/0428/8380/9443/files/57894519452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4213/6476/files/devasazigogipezakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/54517063790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/57707644470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/fojufofuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53295895336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3820/3290/files/tenepodarav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9348/files/multivariate_analysis_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6026/4086/files/certificat_de_vente_moto_cross.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/wisitusabivimojokutipiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9336/0791/files/cricket_world_cup_2020_schedule_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/bonebusijade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/moboluwuwadi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A9 5504 bytes
SHA-256: f15884170383fac047d2bcdb7382774eb0f19d999cae732043b89dfcba3e87e2
font_01_sfnt_off00006838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6838 10632 bytes
SHA-256: 0ec739ad52448e5184976727f95583545fd82a05a1aa17bc3dc975852a373453

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