Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b272073e33bf42c…

MALICIOUS

PDF

54.8 KB Created: 2020-08-19 02:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c5ad6ed3fa2c522db1b2e7b0e81ba69 SHA-1: cdf29bd13eb2a92366467e1c7da9d035f499519a SHA-256: 2b272073e33bf42c5bffd34ab802153470432ad72d34c2994f7988b01d434d94
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised with a lure related to 'Krispy kreme report card rewards'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is the redirector, which likely leads to further malicious content or phishing pages.

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=krispy+kreme+report+card+rewards In PDF document text
    • http://pivova.corpuschristiquilters.com/uploads/1/3/1/3/131398091/1150612.pdfIn PDF document text
    • http://naregujok.cpcfamilies.org/uploads/1/3/1/4/131452883/nexojukojoruda.pdfIn PDF document text
    • http://rawete.turquoisematrix.com/uploads/1/3/0/8/130814124/fafuraz.pdfIn PDF document text
    • http://files.palmerdavidart.com/uploads/1/3/1/8/131856646/843985ba0b1ed.pdfIn PDF document text
    • http://padibatu.danielles-boutique.com/uploads/1/3/1/4/131453206/4239252.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/1/0434/2536/6165/files/wofakuviwajemifupajazikof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/94978394337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7153/6290/files/autodesk_fusion_360_introduction_to_parametric_modeling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/nccn_guidelines_gastric_adenocarcinoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/bowapodijabowotog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/61318083253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/35567364040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6285/8652/files/academic_writing_genres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/xofefupuzusasabavuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/free_kjv_study_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/3526947000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/impact_of_globalisation_in_developing_countries.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7276 5096 bytes
SHA-256: 965d4e4d87793a3a3f3725a28e44250572d279220e0a5d3f03387f28815e35d6
font_01_sfnt_off000083e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E6 10976 bytes
SHA-256: e1b4aff3a60271d5da47b22c396f4087211b56f093fa5dba3d83b2292c824e15
font_02_sfnt_off0000a993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA993 16344 bytes
SHA-256: f3b95f1269985bafc3dfb9b5b35e76df8a4d57039a143c013aed99c7cf3a4a89
font_03_sfnt_off0000bf0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF0C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176