Malicious PDF — malware analysis report

Static analysis result for SHA-256 3408e19abd66ded4…

MALICIOUS

PDF

57.6 KB Created: 2020-08-23 01:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8be71300223e140a0cc09f4cfe7cb56 SHA-1: 85f9f4fe71923ec95313941f0eb64e2322079709 SHA-256: 3408e19abd66ded49b94af73f127356c2c449ba02a5e2dc951b244b3ebd01e5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body text, though partially corrupted, includes a URL that is also present in the heuristics as a malicious redirector. The presence of many external PDF links indicates an attempt to distribute or obscure malicious content. 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=bhaiya+ji+audio+song In PDF document text
    • http://files.earthcraftpermaculture.com/uploads/1/3/2/6/132695568/tusikuximujeziw_sekesawifetaxol.pdfIn PDF document text
    • http://files.healthyjuicedietlife.com/uploads/1/3/1/4/131452878/kifexigud.pdfIn PDF document text
    • http://files.stonemountain-capital.net/uploads/1/3/1/3/131383943/sebixixuvukef.pdfIn PDF document text
    • http://files.townofgeraldineal.com/uploads/1/3/1/4/131437969/9e2365ce3b.pdfIn PDF document text
    • http://rerodup.bonnieleeanderson.com/uploads/1/3/1/4/131454035/6687949.pdfIn PDF document text
    • https:///1,sap_id:albumartwork:https:///1In 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/1/0432/2240/1192/files/rapisaxaxalapadejig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/noxutapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1117/7626/files/71614188844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/3577275934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4836/5214/files/type_space_maintainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/mera_bhola_hai_bhandari_bholenath_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5517/6097/files/52129971002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1344/4508/files/39693993311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1777/0920/files/hunger_games_book_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/freeman_biology_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/botexubomonawa.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C7 5184 bytes
SHA-256: ecd6e82a09f7d008b655f0e6df74b99ef4f86d8ae4862a7f16779c2dfe52fae7
font_01_sfnt_off0000846f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846F 15192 bytes
SHA-256: 978d5bf7ac35840262c878fb7a48b9d226aceb03d949e2e74d8b6ebb115d60ef
font_02_sfnt_off0000b38c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB38C 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
font_03_sfnt_off0000c8f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F6 4296 bytes
SHA-256: 68643eca1c4bb86d135fe2ab869de10d7ae79176e708d6a512070a9315d89ba1