Malicious PDF — malware analysis report

Static analysis result for SHA-256 afca9094f700cc72…

MALICIOUS

PDF

40.7 KB Created: 2020-08-18 18:03:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 338d5cbdf54ff67d1bbf0f62bf8db34b SHA-1: dc2ffef4c2a886d77954f38a8a04a15fad99c98a SHA-256: afca9094f700cc7220240c9cb7fbc58179fff59aca196cd0852edf890d2ff714
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=disadvantages+of+social+media+in+communication+pdf', indicating a lure to a malicious site. The presence of many external PDF links suggests a link farm or SEO poisoning tactic to distribute 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.
  • 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=disadvantages+of+social+media+in+communication+pdf In PDF document text
    • http://files.chelseaplatingcompany.com/uploads/1/3/0/8/130813667/98ea83dbe7.pdfIn PDF document text
    • http://files.craftymoma.com/uploads/1/3/0/7/130739500/6987506.pdfIn PDF document text
    • http://vodapeju.amywseelbach.com/uploads/1/3/0/9/130969465/9e078693d5.pdfIn PDF document text
    • http://files.squibb.club/uploads/1/3/0/9/130969352/vojevasopop_vegojawenikeraz.pdfIn PDF document text
    • http://surafuzi.decadesapartproductions.com/uploads/1/3/1/4/131407089/fevipodol.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/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5470/2496/files/minecraft_resource_packs_1._9._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6219/0499/files/learn_bodo_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7671/files/free_tecumseh_small_engine_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2438/4154/files/33334101435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/63655338928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/30372480731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1084/0981/files/myspace_mp3_grabber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/vovojukefikadoxakevedip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/wajarugazozolob.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 3

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_off00005f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 5440 bytes
SHA-256: d22d0ae0d1dbae4161a97482bf893cc14ead5af127406a19bc92094ad3f3a8d0
font_01_sfnt_off000071c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 10544 bytes
SHA-256: 7cc25f56c71f2dd1fa57441a881ca4caf605fa075e32c3ebe48008e2fb44890a

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