Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f62f1094f478f4b…

MALICIOUS

PDF

42.7 KB Created: 2020-08-26 13:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4c0bc5d4e763e4012e9fb32606ebc60 SHA-1: 469f0a113a577e59efd26026c87c1f990a98f7f3 SHA-256: 5f62f1094f478f4b8bb82877a1b9a56e6853f4c9db59beb6bd891763181cf62b
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains numerous links to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The document body, though heavily obfuscated, contains text related to a 'Tamagotchi forever unlock guide' and includes the malicious URL, suggesting a lure for advance-fee scams or phishing. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=tamagotchi+forever+unlock+guide In PDF document text
    • http://files.melaniegraysmith.com/uploads/1/3/1/8/131856112/ea5cb57602d7.pdfIn PDF document text
    • http://files.donfranciscocigarstoo.com/uploads/1/3/1/0/131071019/baketogijukola_koxalasowe_tofilubor.pdfIn PDF document text
    • http://files.missinternationalaustralia.com.au/uploads/1/3/0/7/130740338/pidopoje-lijotebo.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/1/0430/2834/9079/files/77841324386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/call_of_duty_apk_revdl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9113/6422/files/anger_management_online_exam_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6888/2072/files/85930018961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/ropefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/panasonic_ag-_hvx200_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9793/9349/files/38034627011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4111/9653/files/65515741536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1415/files/ceramics_tools_study_guide.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_off00006640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6640 5328 bytes
SHA-256: 43ec365be356d8bda4bd7277f4cffdcd5d6ea66eedf794822006b6369bf69b96
font_01_sfnt_off00007842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7842 11448 bytes
SHA-256: dd6a155b5954b57b7f535c3a563db541232c71c77f7eb31df3bf6fc604b5db50

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