Malicious PDF — malware analysis report

Static analysis result for SHA-256 94b52aff6daf0108…

MALICIOUS

PDF

41.7 KB Created: 2020-08-02 00:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de7fc3a98f8d9c3f8d2ccedad7f4d061 SHA-1: b63bed997ef54b9b798cffe1affdacc52b7040a1 SHA-256: 94b52aff6daf01084ab9acb41d88fbcdfa3d9778169714bea3bfe57093c92c42
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though partially corrupted, contains text related to an 'FE exam electrical engineering study guide pdf', which is likely a lure. The presence of a malicious redirector at https://ttraff.com/pify?keyword=fe+exam+electrical+engineering+study+guide+pdf indicates the primary intent is to lead the user to a harmful site.

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=fe+exam+electrical+engineering+study+guide+pdf In PDF document text
    • http://files.drjesspshatkin.com/uploads/1/3/0/8/130874015/a327b53.pdfIn PDF document text
    • http://files.7thbattalion13thartillery.com/uploads/1/3/2/7/132740423/6e1217fd.pdfIn PDF document text
    • http://files.dojobianco.com/uploads/1/3/1/3/131380052/giwuje.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/1/0429/2660/4447/files/porerumusuzaredupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9417/8982/files/45381404909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/gasutifakukineviwuvade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/rotebenofot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/zijolodulagis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/wufukomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/25778728226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/61548333966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/mafezewegujapexazutaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/49472458132.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000622c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622C 5600 bytes
SHA-256: 398f32d524c5eb9796b7c3cf54314f84671145b5ac5109d98f4ed7842c30306c
font_01_sfnt_off00007533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7533 10852 bytes
SHA-256: adbfbe8ddc8037466e4aff1475ccf8718ed5af6504c63fbf720fd56a02e6afb0

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