Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f77ccf0f54e4771…

MALICIOUS

PDF

46.1 KB Created: 2020-08-01 07:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9dd7dc2780b2cdf14d94e98843f7f3c SHA-1: b57a93491e5a243871f938b0d48432d0cf8d4997 SHA-256: 9f77ccf0f54e47715e2255cc9c74d9592cf05f0f408cefff46ef63de58571dd6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=sql+try+catch'. This indicates the document is designed to redirect users to potentially harmful content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=sql+try+catch In PDF document text
    • http://files.bouldenscience.com/uploads/1/3/2/6/132681460/8485176.pdfIn PDF document text
    • http://files.bjaninefulla.com/uploads/1/3/2/7/132741535/kunuwu-zitopozesof-jadigi-fegiba.pdfIn PDF document text
    • http://files.handmadebylouisa.com/uploads/1/3/0/7/130775827/25f7f89e987e0.pdfIn PDF document text
    • http://files.mrsboatman.com/uploads/1/3/2/7/132740638/4687334.pdfIn PDF document text
    • http://files.oldfieldcellars.com.au/uploads/1/3/1/8/131856844/4561904.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/1/0428/8679/1334/files/47231858857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/nipunafoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13503036424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/40667415936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6991/4790/files/98951680724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/astronomy_today_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6344/2598/files/30349050420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/50812412426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/soradediwusezap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/74553818037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7287/8747/files/folizixogod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3021/6855/files/57176648748.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_off0000720c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x720C 5040 bytes
SHA-256: b2052ef6774e23e6510c36b6ad1c12421bc5ad04218e1ee76f3445174133914e
font_01_sfnt_off00008337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8337 14056 bytes
SHA-256: 8a0ed3ca7ecbdabfc051365052fa6b167c416ce73a30a8d87cb77c05f99596bd

Open this report in the interactive analyzer, or submit your own file for analysis.