Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad1dfc899933c1cd…

MALICIOUS

PDF

48.9 KB Created: 2020-08-22 15:28:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d175a00674b343086ea1fd48731b6197 SHA-1: cdf4d4f15d1423211c43a7e49c5873d3b9020697 SHA-256: ad1dfc899933c1cd55910ee3f12c42696a477c86e8f87489753fcab08a2649cc
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL 'https://ttraff.cc/pify?keyword=nota+novel+bimasakti+menari+pdf' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links, reinforcing the lure for users to click on what appears to be a document download.

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=nota+novel+bimasakti+menari+pdf In PDF document text
    • http://talax.rescuetheunderdog.com/uploads/1/3/1/3/131384429/digiwanibatexos.pdfIn PDF document text
    • http://files.wikiscreenplaycontest.com/uploads/1/3/2/6/132683088/ninikoravulemiraj.pdfIn PDF document text
    • http://sibevim.21daykindnesschallenge.org/uploads/1/3/2/8/132814930/6327094.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/calculus_without_derivatives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3775/3501/files/90684765920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/my_sister_s_keeper_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7081/5397/files/ensayo_de_bienestar_animal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/cyanohydrin_formation_is_reversible_in_base.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/98436202507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3740/8936/files/93041336846.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 1

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_off000075ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BA 5208 bytes
SHA-256: c05cf363439051a8090e536fdfc7fe0ebb7d2e82f8b0524f400d921f3aa3762a
font_01_sfnt_off00008755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8755 9660 bytes
SHA-256: 9c1684210fc310ae633913de102cef837e6a689870925a9d62090088786927ba
font_02_sfnt_off0000a83a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA83A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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