Malicious PDF — malware analysis report

Static analysis result for SHA-256 210ef231454c48d0…

MALICIOUS

PDF

49.0 KB Created: 2020-08-19 10:20:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 688907ebbc28be9e88414919f5e94481 SHA-1: c17ea4f10decc221d1e5d9ef18d0a5df6b367c08 SHA-256: 210ef231454c48d093b1c4909f6a2d88c179e278bd172ed992690c3dd0fde7a2
242 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=yahoo+finance++apk'. Additionally, it exhibits a PDF link farm and a lure for browser extension installation, indicating a social engineering attempt. The presence of a visible LOLBin command execution instruction further suggests malicious intent, likely to download and execute a second-stage payload. The document body, though heavily obfuscated, contains the 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=yahoo+finance++apk In PDF document text
    • http://xirad.beattyscountrymarket.com/uploads/1/3/1/3/131384635/5511797.pdfIn macro / runtime command snippet
    • http://files.harvestbibleaz.org/uploads/1/3/0/7/130775017/figesosoxe-dubolaraboke-ziwiriru-boxotetedu.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/1/0432/2322/0392/files/chrome_os_update.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1814/1341/files/rupanigufafefuwovixolatow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7572/1629/files/bootable_pendrive_using_cmd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7532/9436/files/vajefurofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/86718900119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/deep_ecology_movement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1840/1430/files/email_writing_format_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/tadixuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/40021833027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8615/1833/files/xegaxepevajubus.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
    • https://cdn.shopify.com/s/files/1/0433/7532/9436/filIn macro / runtime command snippet
    • 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_off00007cff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFF 4824 bytes
SHA-256: 80f297b13b04f3f19bab5a54a6f1c22011d3b31988303b9b50d228254c7e70d1
font_01_sfnt_off00008d66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D66 15984 bytes
SHA-256: 2068bc0b30b00b76cecac9e5cd5e8d002a9132ce543f877f77b007e88fbfec98

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