Malicious PDF — malware analysis report

Static analysis result for SHA-256 86fed89141feff91…

MALICIOUS

PDF

92.1 KB Created: 2020-08-07 18:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d7dc19a297476227add439fbfeab7af SHA-1: 99589618c3d7ee5d9084ee5bb65166294749bdbb SHA-256: 86fed89141feff910ecf01a51d88371cf6f8ed30e07cc5d44eb5d0d50daae311
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links designed to create a link farm, with a primary redirector pointing to a malicious URL. The document body, though heavily obfuscated, contains the same malicious URL. The ML classifier and redirector heuristics strongly indicate malicious intent, likely to trick users into downloading malware or visiting a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=al+quran+with+urdu+translation+in+pdf+format In PDF document text
    • http://files.marcodim.com/uploads/1/3/0/7/130776644/jegetati.pdfIn PDF document text
    • http://files.futureleaforganics.com/uploads/1/3/0/7/130775174/51a4d5fbda60.pdfIn PDF document text
    • http://files.mountaineerauctions.com/uploads/1/3/2/8/132814239/5ff98.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/1/0436/2089/2834/files/cracked_fl_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7182/2229/files/38169599557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/siguvifudow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7801/7443/files/faduwofesoderuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/viravisuxepanax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/vixubitanub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/99042218939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/wibasaletoxemajizedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8597/1112/files/vopimotewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/33581320445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2273/6798/files/59664168429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3105/1943/files/rigiganopiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4587/8941/files/pulijudirosol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/zakojorifir.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0001259e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1259E 26480 bytes
SHA-256: d9b863d37272fc7c6bc282e5637cd27142e726dc023509b4a206f7157e3e6618
font_00_sfnt_off0000e52d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52D 1636 bytes
SHA-256: a9ad9ad0a96fe26ac6797df49b1e626b392e9366165fda36ca18888fb22e3261
font_01_sfnt_off0000ed6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6B 5252 bytes
SHA-256: ec4eba6ff5df0fbef4b981af78223984fd0628904b1517f04faf10205f7cae8f
font_02_sfnt_off0000ff1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1B 11176 bytes
SHA-256: e70d7f2367880a1b495f402adb9c8d0d57e885dda5d93f1ad7afbba3002ae2e0
font_04_sfnt_off000153b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153B6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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