Malicious PDF — malware analysis report

Static analysis result for SHA-256 8247feba78e38248…

MALICIOUS

PDF

42.0 KB Created: 2020-07-31 18:14:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6b3c306ad782a2b718818f864448915 SHA-1: 83ef900a1a7eb2aa4f8b05e6f43c67ad6b22681a SHA-256: 8247feba78e38248a0773b8201920d542d5534cd66ef9c51316293329ba978a1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating an attempt to lead users to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious. The embedded content suggests a lure for a 'bbg workout pdf' which redirects to a malicious URL.

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.ru/pify?keyword=bbg+workout+pdf In PDF document text
    • http://files.secretbutterflyboutique.com/uploads/1/3/0/7/130776255/bixikowusi.pdfIn PDF document text
    • http://files.tfexpo.net/uploads/1/3/1/4/131438474/wizipomudo_fitidonovijidi.pdfIn PDF document text
    • http://files.gracewithlight.com/uploads/1/3/0/7/130740018/famamura_dopatebolezi_bakaxoxit_zabatiwanikum.pdfIn PDF document text
    • http://files.learningtobuyahome.com/uploads/1/3/1/3/131384145/5941752.pdfIn PDF document text
    • http://files.arlingtonmsband.com/uploads/1/3/1/6/131606087/ddee7.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/1/0433/0687/7080/files/80023348890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7275/files/97975742656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9105/8070/files/43097030410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/xefonanutes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9283/files/lonifateta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/relagurizafupekiwiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/wakoxodizujilurifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pekuxiwitijumowiviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutuxajaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2649/7182/files/zijokisizividepiluzifed.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_off00006661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6661 5136 bytes
SHA-256: 9ff828ddbcdbe54414d4560946e877e955f5eb7978cab1600defba841b80c289
font_01_sfnt_off00007803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7803 10176 bytes
SHA-256: 34fbdbe29b2310d847614903d319c680af990bb04d5326d57cbd9c799885d32e

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