Malicious PDF — malware analysis report

Static analysis result for SHA-256 3344e4170ecd2cdc…

MALICIOUS

PDF

40.1 KB Created: 2020-08-19 17:59:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4fc132b07c6fe0a929f22d5308eb646 SHA-1: ceeafa908030057a11ec485aa576977204b7c5a7 SHA-256: 3344e4170ecd2cdcb7bd8cbc31eb1b4261f670532979ad0dc813fb1181aedd46
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as an answer key for an electron configuration worksheet. The document also exhibits characteristics of a link farm, embedding numerous links to other PDFs hosted on Shopify. The presence of a visible LOLBin command execution instruction suggests potential for further malicious activity, such as downloading and executing additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=electron+configuration+worksheet+4+answer+key In PDF document text
    • http://files.dandelionartcenter.com/uploads/1/3/1/4/131437453/d2d771208cd8055.pdfIn PDF document text
    • http://files.mandevilleelementarypta.org/uploads/1/3/1/8/131857890/zutewezodakisat.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/1/0428/4953/4111/files/82037939507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/vazojurisuwoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/kutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/wget_java_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4545/3985/files/gamavarafefaxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1647/8110/files/62760241579.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/kuvizoliva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/61940519116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7379/7284/files/filemezapeviposape.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
    • https://cdn.shopify.com/s/files/1/0430/4545/In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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_off00005e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2C 5448 bytes
SHA-256: a576eef14c7c3604d35d4552b21dd7587c80449e6e1f76d62517bbb36f888070
font_01_sfnt_off000070d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D2 10208 bytes
SHA-256: 930d2f420ac8fe808f5e8a0276950b4e9e0c8b0560ff01925308370b9d7567ee

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