Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2621972182288c…

MALICIOUS

PDF

54.9 KB Created: 2020-08-18 23:12:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b87366091a73fb6572c7d41556d690fd SHA-1: d2e03fe800775093899bfbf75c5b02d8831195b9 SHA-256: fa2621972182288cebd69c179b8cff344fa7c767d1a2d8614e06986117375c0a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a URL designed to lure users with a 'cheap youth cheer uniform packages' keyword. The document body, though heavily corrupted, also contains this URL and references to Shopify links, suggesting a phishing or scam attempt. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious redirector.

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=cheap+youth+cheer+uniform+packages In PDF document text
    • http://files.niakohimura.com/uploads/1/3/0/7/130776220/pogapenub-sepupefedugu-pabafi.pdfIn PDF document text
    • http://nezusux.lodgeyggdrasill.com/uploads/1/3/0/8/130873791/1180418.pdfIn PDF document text
    • http://duxam.danielleozymandias.com/uploads/1/3/0/7/130776106/fuganutug.pdfIn PDF document text
    • http://mepofez.empowerunit.org/uploads/1/3/1/4/131407148/luxuzimanidege_sezagizolefedad_pulovozib_funusu.pdfIn PDF document text
    • http://bikaf.cakarst.com/uploads/1/3/0/7/130739059/fuziti_tiwikumor_wimej_namanuw.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/1/0433/2604/6362/files/l_atomistique_cours.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6827/7415/files/rezukisilifuvunewuwig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5239/9777/files/carol_of_the_bells_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0405/8010/files/16406943541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9462/files/components_of_computer_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2266/4348/files/28030722601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4213/6476/files/gubekobukexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7790/3263/files/mepagubujifofukerosisudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/gerafifozawevowibanijab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6181/0076/files/buffer_solution_calculation_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF4 3292 bytes
SHA-256: 3cad6c444e6eb1d31f6156be9344c07061e35088985b873b24c600a9654ec142
font_01_sfnt_off00006680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 5468 bytes
SHA-256: 9db5090c661f178c14c755f41fe83992c73862a7380c9345c66cb1dbb6869466
font_02_sfnt_off000078fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FB 5200 bytes
SHA-256: 34eb269886a2c2b8b13934a629c8a5ff3ba7dca607e62054a980a16373f1dc25
font_03_sfnt_off00008b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B90 10940 bytes
SHA-256: a5ac73c282c4404b93c214ec94c989cc453b3125356f99ccfaad45bbeaa4f7ee
font_04_sfnt_off0000b10d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB10D 16036 bytes
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940
font_05_sfnt_off0000c565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC565 1736 bytes
SHA-256: 5095ccdfdd328c3f25b1766e9c65bca58fa839170fcb9f3db3c20e130d955aff

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