Malicious PDF — malware analysis report

Static analysis result for SHA-256 d79ac8400d49fada…

MALICIOUS

PDF

64.3 KB Created: 2020-08-16 22:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af996664de8e6d0ec3de7283cf615460 SHA-1: 906a3c3391f521e3c9ed73751078689717667f7f SHA-256: d79ac8400d49fadac7b5441d368a7e262539883ce1eb5a95b1fd9302f65c7c54
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=akuntansi+dasar+1+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0433/5383/3637/files/kubota_parts_manual.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL.

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=akuntansi+dasar+1+pdf In PDF document text
    • http://files.thevigilgroup.org.uk/uploads/1/3/0/7/130776215/bekujeradunenonodus.pdfIn PDF document text
    • http://files.westsideyouthministry.org/uploads/1/3/1/3/131384721/74dacb.pdfIn PDF document text
    • http://files.vetsourcecanada.com/uploads/1/3/0/8/130873708/9817695.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/1/0433/5383/3637/files/kubota_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2739/files/network_interface_card_functionality.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/zuzemopinuvagulifunulozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/85871157128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/10341022820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0605/7883/files/248151310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0840/9250/files/vibutuxuzupokenige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5925/6225/files/36423661302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0971/7910/files/nigegepipibof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6723/5742/files/steps_of_polymerase_chain_reaction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9535/9641/files/73964961004.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_off0000be8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE8F 5108 bytes
SHA-256: 09e8c32e046576eefa1820d334e0eddac8df48f974de302b5511f73e9041aaa5
font_01_sfnt_off0000d008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD008 10620 bytes
SHA-256: 79b842d8df26fa243dedd800559f6da05d6f2899c017bf16da41f8ced71608b2

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