Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fbcff93e26d3519…

MALICIOUS

PDF

40.8 KB Created: 2020-08-18 17:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a95f985c3069e3ec3befc450b7238d6b SHA-1: f4f10fc023d2f20330b2874f6c1a67d496054441 SHA-256: 7fbcff93e26d3519c7da9215a742424f429069d09c99fc6ccaafa9e3b5ebfb5c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains text related to 'free credit report' and a URL that aligns with the malicious redirector. The presence of numerous links suggests an attempt to create a link farm for SEO manipulation or to distribute malicious content, with the primary redirector being a key indicator of malicious intent.

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=free+credit+report+online+government In PDF document text
    • http://files.hannahjoanfilms.com/uploads/1/3/2/6/132696030/furidozobiloxaz_radexu.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/1/0430/8307/1642/files/vifafusesigig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5837/1480/files/formal_resignation_letter_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/lynyrd_skynyrd_curtis_lowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1139/8041/files/91887342088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5747/8809/files/nilejitomewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6074/6648/files/28118335948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1711/7601/files/series_de_lyman_balmer_paschen_brackett_y_pfund.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/kuruniwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/78633740144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0181/2888/files/aaradhike_song_karaoke_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/gudaboxo.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 1

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_off000062e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E3 5020 bytes
SHA-256: f61e823ff280de8aa8be86b858cc4e74043260ee3f680c219fd6d4ca2eecdac4
font_01_sfnt_off000073f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F0 10176 bytes
SHA-256: 140655d5bfa7e838d19959077bab9e8bb58550f12f89d10a2849e4e2adcb9e8b

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