Malicious PDF — malware analysis report

Static analysis result for SHA-256 83b2642d2b47e5fa…

MALICIOUS

PDF

39.7 KB Created: 2020-07-28 13:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d0e6fbbf913586c5f9344acf8986950 SHA-1: 156f83372fc97b4d51d043ec79265ec723cd3125 SHA-256: 83b2642d2b47e5fa586107fcfe1a1094c43d333d5626edf2bb8b9c89bc5fe393
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to a phishing or malware distribution scheme. The embedded link directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'continence aids payment scheme guidelines', suggesting a lure for potentially sensitive information or financial scams. The presence of numerous external PDF links further supports the SEO link farm tactic.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=continence+aids+payment+scheme+guidelines In PDF document text
    • http://files.iuoelocal609.org/uploads/1/3/0/7/130776327/giwomevolixosu_zovonuribasex_saxewiduban_vupekedotaru.pdfIn PDF document text
    • http://files.cr-routines.com/uploads/1/3/0/8/130813827/muneli_joguwapirufaxi_xulod.pdfIn PDF document text
    • http://files.fatimaschool.org/uploads/1/3/1/4/131453018/lasixobu-kezitezize-zimaminesix-bovudipaduvav.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/1/0435/7767/1843/files/megasasuxerorevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4954/1013/files/limoxik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/dininakekodawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6998/0320/files/zumutubefosutademumominud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7004/5864/files/simaneba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/55723448687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8155/5350/files/95187252581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4670/6088/files/tadukowagojulosediwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/13946550482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/kukeligubuvadogupigojema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/18489147098.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_off00005df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF7 5396 bytes
SHA-256: ed6edb9ffb1e2fcdf6dda94d1bb491880f09ef60b0d0be06c011517c8e575416
font_01_sfnt_off00007033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7033 9816 bytes
SHA-256: 1009261f5a966834b499a45521dcf456692ca4a97ecb910b1cd8190e1f37f1a5

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