Malicious PDF — malware analysis report

Static analysis result for SHA-256 889f16c218eea8b5…

MALICIOUS

PDF

37.0 KB Created: 2020-08-03 01:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d86a0b23457b9127dd771feb0960c9c5 SHA-1: 4a01df14fc861f1cf5831e8c9a4dc3e7803d165e SHA-256: 889f16c218eea8b5ddaf9b37f5a8776c850007cb0c7db5e813fc3fb301c11c0d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, also contains this redirector URL and other PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of external links points towards an attempt to redirect the user to 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.cc/pify?keyword=attila+pizza+lyrics In PDF document text
    • http://files.worldpairsangling.com/uploads/1/3/1/4/131453902/9d19ede6.pdfIn PDF document text
    • http://files.acasongs.com/uploads/1/3/1/3/131380308/mumukajovizegavefo.pdfIn PDF document text
    • http://gatiwow.rytiskonst.com/uploads/1/3/1/4/131406202/lutivupakudap.pdfIn PDF document text
    • http://files.skydancer.ca/uploads/1/3/1/3/131379099/joxunimikovati-teduxekitu.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/1/0433/0219/1269/files/generic_discord_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5393/1944/files/mixavomexitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/rutekiwamuwedonos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2661/9287/files/basanugeravudenurita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8879/0179/files/rajokap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/37447081435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/gasebinemafifofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/guide_to_energy_management_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/dupabebakudaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/xekimivejomusifotuvivoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/refifuruguvukabopibale.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 4

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_off000052fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52FA 5068 bytes
SHA-256: 5f6edac1ee2c6e5bfc8c8a3d5a98fe24a640e142a0391a8927dfbc2624266669
font_01_sfnt_off0000645a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645A 10240 bytes
SHA-256: c9ebcd005f098aae5eb22d28220bcd1116b2abc569603ac24155537e1534f078

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