Malicious PDF — malware analysis report

Static analysis result for SHA-256 d74513f0f88f745e…

MALICIOUS

PDF

45.5 KB Created: 2020-08-18 21:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbdd74d36f23d6846d5301a430894146 SHA-1: 884ec8c45f996133b32446b09561cda73319b13a SHA-256: d74513f0f88f745ee5687d98f70f4a9f19488ccf9795ad016e4eb07ab11c242d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with the primary URL pointing to a known malicious redirector. The document body, though obfuscated, contains the same lure text and URLs as found in the heuristics, indicating a deliberate attempt to direct users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=annual+report+in+meaning+tamil In PDF document text
    • http://vigiv.thepeacecentre.org/uploads/1/3/2/3/132303108/2736227.pdfIn PDF document text
    • http://files.cmenergyinsight.com/uploads/1/3/0/9/130969841/detidawariwi_banidonel.pdfIn PDF document text
    • http://masar.kountrykupboards.com/uploads/1/3/0/8/130874474/163178.pdfIn PDF document text
    • http://kigejitir.calgarylinedance.com/uploads/1/3/0/7/130776818/lowefo.pdfIn PDF document text
    • http://files.jawsjournal.com/uploads/1/3/0/8/130874329/3701795.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/1/0430/1655/2605/files/tifiradanovif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/70435952779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/foxtel_go_android_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8556/7902/files/credit_report_check_for_landlords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/zoology_bsc_1st_year.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2688/2471/files/andromonoecious_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/windows_ce_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/wurururupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/40313890540.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_off00005d88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D88 4952 bytes
SHA-256: c0f548ea61634be4a7c801d8e796f634b362bfcfb0722cbbffb7ae211caaf952
font_01_sfnt_off00006e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3F 7956 bytes
SHA-256: 5f35339d8dd5c7537ae27cc629b2fa9e4a37eee7b44fdd031a3e352c7e3960da
font_02_sfnt_off00008533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8533 10428 bytes
SHA-256: ca4bf21130095f026b1c52ce3c0c0ec0cb5f35fca1fa67439337e6b20b1cc7ad

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