Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dba97562f71562b…

MALICIOUS

PDF

48.4 KB Created: 2020-08-08 17:57:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e32c8c607200db25257e7bd169babf27 SHA-1: 75c2482659f0b6c79bc7d2a23c5a0855bac14510 SHA-256: 7dba97562f71562bb2cc572a5b14edd90cbc93b29c563c33605e7263e423ad0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector at `ttraff.com`. This redirector is likely used to obscure the final destination of the malicious payload. The document body and heuristics suggest a lure for free downloads, which is a common tactic for phishing and malware distribution.

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=sistem+akuntansi+penggajian+pdf In PDF document text
    • http://files.mcgiverncarpentryservices.com/uploads/1/3/2/7/132712163/8440134.pdfIn PDF document text
    • http://files.trinitybengals.com/uploads/1/3/2/6/132681836/wozenurufabubixeg.pdfIn PDF document text
    • http://files.northwoodselementary.org/uploads/1/3/1/3/131384070/bigerutatuvawijivug.pdfIn PDF document text
    • http://files.jackieabeytadesigns.com/uploads/1/3/0/8/130814783/jofijefoj-gopiw.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0430/2956/1495/files/numbers_in_english_1_to_1000_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6834/8829/files/nidovezezolixovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9377/files/como_sacar_tu_certificado_de_secundaria_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/how_to_link_discord_to_twitch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/request_letter_for_job.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2764/4072/files/51770175080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/2356936437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/55312662514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/56399526005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6370/files/78390814329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1093/3414/files/89246742686.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C9 1696 bytes
SHA-256: a63dc7203ceba2031beaf1d50b83973ffdd0483474384fa5780efc3deacec6ca
font_01_sfnt_off00007ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF3 5476 bytes
SHA-256: 0438cec4ec0027766c1b1acc410fa21c6cfffaa3e0e4202411508c872b70763f
font_02_sfnt_off00009290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9290 9816 bytes
SHA-256: f5997794aa736ca936d9acf4f2f3183e99f9b16eaba9300ade71da9b9aa1b573