Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a8e803a19245d4…

MALICIOUS

PDF

47.4 KB Created: 2020-07-30 23:53:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1de4f0f5c0998dbf76b2cd3420363ef6 SHA-1: 90fe9686b8eb98faf3ffaf9606b5f698d86d46b3 SHA-256: f6a8e803a19245d4172450da63a796c9ee87f2375038fa495863b457437c4e35
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'back exercises at home pdf', suggesting a lure. The primary intent appears to be redirecting the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=back+exercises+at+home+pdf In PDF document text
    • http://files.inharmonyliving.org/uploads/1/3/0/7/130739783/gasabol.pdfIn PDF document text
    • http://files.motoworxiow.com/uploads/1/3/0/9/130969809/7564506.pdfIn PDF document text
    • http://files.lanternaconsulting.com/uploads/1/3/2/6/132681517/20f522b.pdfIn PDF document text
    • http://files.re-bel.org/uploads/1/3/1/1/131164424/mipinuraw-ritofijojer-loladosasobak-redur.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/1/0433/6150/1336/files/43053350012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/suxunegub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/favufanidedamefokapajenas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5572/6238/files/pomitomin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9362/2935/files/95084460079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/75757527872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/rebevezuvusodinafadebug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/38256575107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5482/5621/files/43598236774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/dasenabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/11036186117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/liregufunag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/7910659296.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_off00007baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAF 5228 bytes
SHA-256: 508676275fac533f7a6be2ae9616e7e732587f37d244950c43ea8e77c846804a
font_01_sfnt_off00008d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D79 10244 bytes
SHA-256: 1a275608147584e314bf262617768994d966bd8e9eace818aadd717650e206cb

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