Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f832854a216ae50…

MALICIOUS

PDF

40.7 KB Created: 2020-08-18 17:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6a98d5362b1491856c0e671f0fc8f85 SHA-1: c82c8aacf23f4fee04e4cf8fef504ef22fe1a8f9 SHA-256: 4f832854a216ae508352916b97bad059020bf7cd87cd5d14775660e7db18faf2
202 Risk Score

Malware Insights

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

The PDF file contains a lure related to an 'answer sheet of upsc mains exam' and includes a call-to-action button. It embeds numerous external links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=answer+sheet+of+upsc+mains+exam'. This suggests the document is designed to trick users into clicking the malicious link, likely leading to a phishing page or malware download.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=answer+sheet+of+upsc+mains+exam In PDF document text
    • http://files.feedingyourselfwell.com/uploads/1/3/2/6/132683070/tejukaf-dajet.pdfIn PDF document text
    • http://files.junkremovalvegas.com/uploads/1/3/1/4/131406717/mebewokadowadej_jakenobub.pdfIn PDF document text
    • http://files.pleasuresilb.com/uploads/1/3/0/9/130969944/38a61c410bb.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/1/0433/7801/6406/files/29989490955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/asymmetric_encryption_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/sunekinusutugedovigaposob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/24726740421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6693/0840/files/isaca_information_systems_auditing_standards_and_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8193/5522/files/reading_and_writing_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/83405885330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/asset_management_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3042/6278/files/bridal_chorus_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8568/files/77125298749.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_off0000612c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612C 5372 bytes
SHA-256: b827103531f789cbb1c783273f4d46bb850214f58bf69aa1cb50c76c97da0f37
font_01_sfnt_off0000735e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735E 10128 bytes
SHA-256: ce812fcdafc06a5161d069aad4a7581a3944293bb27ca5884e03366d17a4e557

Open this report in the interactive analyzer, or submit your own file for analysis.