Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc759f7a6202fe0…

MALICIOUS

PDF

42.7 KB Created: 2020-08-23 15:41:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a724d0fe45b57d36ccbbc23f05ac2868 SHA-1: 087eeac76dde3e8d29bf95a6ec92220c1b70c828 SHA-256: 0fc759f7a6202fe04b1b5739780a0501b7d911bfd5ba1499abbc3a895d6eaf91
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and appears to be a lure for a 'tech sheet'. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=conundrum+red+blend+tech+sheet In PDF document text
    • http://nanuf.waltersgreenangling.com/uploads/1/3/0/7/130739415/7493851.pdfIn PDF document text
    • http://gituj.augustinoloprinzi.com/uploads/1/3/1/4/131407498/bawopurek_pozatus_nonegedaw.pdfIn PDF document text
    • http://fumaxi.bottomfeedersthemovie.com/uploads/1/3/2/8/132814930/fd0d1f9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/19770756154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/mass_effect_andromeda_strategy_guide_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6063/9384/files/python_if_file_exists.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/table_tent_card_template_publisher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/manewazidiwumoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0266/5892/files/80380352401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/police_report_chicago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/seludereregidananu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0767/1448/files/wotifetuxikilovenowaral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/dnd_5e_beast_list.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
🗂 Part of campaign: charpentierteam.com 3 samples

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDD 4968 bytes
SHA-256: ef05039777b3483f18f5a7af8bb2fcafc973266902f56fcfd829518dfd593960
font_01_sfnt_off00006e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E88 9724 bytes
SHA-256: a0c0fd79fa64d77f2f44f65a6df5247c4b180bd2add2122f80c74be3dd9a1a2f
font_02_sfnt_off00008fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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