Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8be2c6ef617618a…

MALICIOUS

PDF

54.3 KB Created: 2020-08-12 16:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7bca6a1ef1b9d816f81474b5cb41d5e SHA-1: c42b802922884a6905bb92370745a843ba76dbf6 SHA-256: b8be2c6ef617618ae498ff563654ec71e07e93d570d4b537d911f752332b4c2a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bhagavad gita telugu pdf free download' and the malicious URL, suggesting a lure for users seeking content. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirection to known malicious infrastructure.

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=bhagavad+gita+telugu+pdf+free+download In PDF document text
    • http://nijanafo.hyperexmachina.co.uk/uploads/1/3/2/7/132740214/godeni.pdfIn PDF document text
    • http://files.sensibleshock.com/uploads/1/3/2/7/132740479/vasesejakukek_faxej_lelikam.pdfIn PDF document text
    • http://files.dunedoodles.com/uploads/1/3/1/4/131408100/4821917.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
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/cyber_public_relations_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/12059819108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobuwavidojanunixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/tesezutov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/women_s_weight_training_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8988/7396/files/podopit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/guxarotaxuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/gigosefurawuxemokuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3367/4396/files/74978942282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/59135851721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/latest_technology_in_computer_science_2020.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAB 5208 bytes
SHA-256: aba7a4f60c490ed9ab57938022ab2418ab0fc348de1521df77281e5c3f00024f
font_01_sfnt_off00006073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 25368 bytes
SHA-256: 7c5521509720834d957c8ac904a679e8b15a22ca69eee03476fe4abb3bb763bb
font_02_sfnt_off00009906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9906 9844 bytes
SHA-256: df8d1e1647073c3cef60249506cd56e208a4ec8051900261ab55919cd3c90395
font_03_sfnt_off0000baac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAAC 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e