Malicious PDF — malware analysis report

Static analysis result for SHA-256 9659e445d1f4aee0…

MALICIOUS

PDF

50.7 KB Created: 2020-08-08 01:40:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d57e29c56d0cb915115f4b095523526e SHA-1: 2d8ae72a2c2f23d1777bf26cf2762cb41aa8ae59 SHA-256: 9659e445d1f4aee0518b1ec8f92e107696bb4ce429d2e9c6ab0575969f210ea0
194 Risk Score

Malware Insights

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

The PDF document exhibits malicious behavior through multiple embedded links, with one specifically identified as a redirector to a malicious URL. The ML classifier also strongly indicated maliciousness. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning. No scripts were extracted, but the PDF structure itself is leveraged for malicious redirection.

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=alleen+op+de+wereld+boek+pdf In PDF document text
    • http://files.gallery109.ca/uploads/1/3/0/9/130969987/7750431.pdfIn PDF document text
    • http://files.anthonymichaelscatering.com/uploads/1/3/1/4/131437308/29f567.pdfIn PDF document text
    • http://files.eternalove4fashion.com/uploads/1/3/0/7/130776599/peduzuxopafanagab.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/1/0433/3993/9994/files/bimito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/xutiwuvuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1758/2230/files/kuzigoperazojefapuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4664/6439/files/acpl_world_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6303/1448/files/94168808038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2002/3970/files/rerele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0575/2997/files/15945493120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7186/8821/files/clc_blocks_manufacturing_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4274/1143/files/zaboderuvewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/4704841998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3749/8276/files/80361531470.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE1 3056 bytes
SHA-256: 73ea2b817ff3c27a9329572808189018118144ade16c2724585e872f1a91d952
font_01_sfnt_off000089c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89C8 4932 bytes
SHA-256: 7eca34e1a37d8d0ae545c4c1c28d1865187567afbe0160b974c7fcdc7b0bb241
font_02_sfnt_off00009ab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB1 10240 bytes
SHA-256: 2263a0ece25130e9f3596d7587e6131cd831dbc9ba852147526cf353ff658707

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