Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac84b21348ec9c6…

MALICIOUS

PDF

44.9 KB Created: 2020-08-02 21:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc84bebd7ef951f381e9ec5a03f182c6 SHA-1: 46e1c87355019e78d09ff2b1cee655e7ad01d29e SHA-256: bac84b21348ec9c67375b78a13d0a7c170efe4c80ef4ca21bfbe23b48b3adc1d
274 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell T1204.001 Malicious Link

The PDF file contains numerous embedded links, with one pointing to a known malicious redirector. The document body also contains instructions that mimic social engineering tactics, specifically instructing the user to copy and paste content into a terminal, consistent with ClickFix attacks. This suggests the PDF is designed to trick the user into executing a command that likely downloads and executes a second-stage payload from the provided malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=disable+xbox+game+bar In PDF document text
    • http://files.movehelix.com/uploads/1/3/1/4/131408620/leboburetabi.pdfIn PDF document text
    • http://files.envision-benefits.com/uploads/1/3/2/7/132740978/gelasodit.pdfIn PDF document text
    • http://files.livinghistorylesson.com/uploads/1/3/1/3/131379828/1263424.pdfIn PDF document text
    • http://files.collettivoverso.com/uploads/1/3/0/7/130775364/sabixuzezej_kubisalufusezem_mefunumo_xuzuxuduwati.pdfIn PDF document text
    • http://files.bostonbarbc.net/uploads/1/3/0/9/130969966/zilud-kanapef-pitiredisabuwuv.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/1/0430/7261/8657/files/xumiludo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/nojumetademu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/zizugukox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/21469923818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/sivevobevegepip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9171/3447/files/jinamegawamusugolejuzide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/simajiremojemomiwuwukit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/buzumaromejokopikam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/61771852040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/62836676797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/solovizotote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1809/9615/files/47137266304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6787/files/xewiwaxebajemoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/bexazudiluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/52163316561.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_off000071ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EF 5212 bytes
SHA-256: 9110d6e0ae65a52950f226c76e3b7dddb863aea96d5d19855455c2e0f61403e1
font_01_sfnt_off000083a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A0 10156 bytes
SHA-256: 43f010c39fc5829045ee416e04c30b38dc694f75dcbf2aaaa4dafad04f93e60f

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