Malicious PDF — malware analysis report

Static analysis result for SHA-256 d482834478cf64a2…

MALICIOUS

PDF

53.8 KB Created: 2020-07-28 14:10:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ba50ad06e4cf16068be691f551d8535 SHA-1: 879f5d5ed485833848be0de3caa7940cd39e2bd0 SHA-256: d482834478cf64a2fc523c589e5e00278e66f3574f9ed3ffe783eb6ceb57b51c
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Yahoo mail photos', likely serving as a lure. The primary IOC is the malicious redirector URL, which is designed to lead users to further malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=yahoo+mail++photos In PDF document text
    • http://files.singersandactorsworkshop.com/uploads/1/3/2/7/132740218/mubazaxumadajag.pdfIn PDF document text
    • http://files.tinytotsauburn.com/uploads/1/3/0/9/130969776/3861100.pdfIn PDF document text
    • http://files.steamers18.com/uploads/1/3/2/7/132740865/zipex-lisutemud-batilikujofavaz-nikisedidor.pdfIn PDF document text
    • http://files.chichestersecuredog.co.uk/uploads/1/3/1/3/131379939/gilonazakelajo_rofirexot_wimiwazusigi.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/1/0429/0890/9734/files/76220358897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/paliwumoxejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/timudokuxuwuwoxepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7698/3713/files/kuxoritifeweluzujememo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/tipepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/tebedimuxute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/87869239377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/43413473786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6771/7270/files/pegorepuvuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0087/9510/files/vanaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/kikevovivewilixixazoraki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/ruvijunetopojaroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/82082131457.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_off00008c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1E 4488 bytes
SHA-256: 99e41ceb0dc0134bcd6dce32dcea4546473b47e6cc7fea56d30348fc8df37175
font_01_sfnt_off00009b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B4A 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0000a3d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D8 11024 bytes
SHA-256: 9cd86f691c0479159bc6bb4aedbc67127466a1511fb6365ef40f7eb9faa34161

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