Malicious PDF — malware analysis report

Static analysis result for SHA-256 b397e8f35fdf3cd5…

MALICIOUS

PDF

44.6 KB Created: 2020-08-07 22:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3ae303c22d7884d07075dedce3fb2d8 SHA-1: 1e339a62c1a170fd2486665dc8a16e170b8f12cd SHA-256: b397e8f35fdf3cd5eabcf52cdaf5d01146b794011e3058f810d083e0df65809d
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text related to exam results and the malicious URL. The primary malicious URL is https://ttraff.cc/pify?keyword=bin+sachivalay+clerk+exam+result+2020+pdf, which is likely used to redirect the user to a malicious payload. No scripts were extracted from this sample.

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=bin+sachivalay+clerk+exam+result+2020+pdf In PDF document text
    • http://files.monmatgrp.com/uploads/1/3/2/7/132712199/2924916.pdfIn PDF document text
    • http://files.confettiandjoyphotography.com/uploads/1/3/1/3/131384208/60cdfd097eb.pdfIn PDF document text
    • http://files.sigridehemann.com/uploads/1/3/1/4/131452935/gajuwezufene.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/1/0436/4114/3454/files/55773105967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/tematazuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6740/0601/files/dupakivote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/83990383214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/sumorukafugivovelerexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/konurumofixijaxowifutek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5666/7541/files/native_american_word_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9285/9293/files/lemarepidepopejuzaxitota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1619/0112/files/vimigutufarutugopoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8870/5688/files/25594787077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5671/7207/files/66009380511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/lebamamigeto.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_off000061bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BD 6012 bytes
SHA-256: a67ae9b95d601e398936064cea73ae9f53eda16ef1a58a81efe1966001ecf295
font_01_sfnt_off0000761e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761E 10272 bytes
SHA-256: a58264669b10aca467c32d17d4849d10190e0993709094024caeb72e2a79c830
font_02_sfnt_off00009978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9978 2904 bytes
SHA-256: 00e71a05869d3b11269be3b12378b9e6901e278056f374220c237a503e5b19d4

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