Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1c82a8f4cd06ba4…

MALICIOUS

PDF

82.7 KB Created: 2020-08-06 18:27:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79cba7a471127133b31039fc190fc2b4 SHA-1: e3d68ea84a8dc07695be0d50d74c2995484e0c3b SHA-256: c1c82a8f4cd06ba45855970825a23008b9608eb2d3d2602b4b0d57fa514b3b6d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=list+of+regions+in+the+philippines+pdf'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to distribute malicious content. The presence of a 'SE_LOLBIN_RUN_COMMAND' heuristic indicates that the document may contain instructions for executing commands, likely to facilitate the download or execution of further payloads. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=list+of+regions+in+the+philippines+pdf', reinforcing the malicious redirector finding.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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=list+of+regions+in+the+philippines+pdf In PDF document text
    • http://files.thelordshumbled.com/uploads/1/3/1/4/131409508/1495682.pdfIn PDF document text
    • http://files.allisoncamerongray.com/uploads/1/3/0/9/130969992/4421908.pdfIn PDF document text
    • http://sodudog.gabicurless.com/uploads/1/3/1/4/131482975/xosemij_jipogulisapowe_begiwuzugamo.pdfIn PDF document text
    • http://files.bahamasbeachhouseforsale.com/uploads/1/3/1/3/131380456/52b3b442.pdfIn macro / runtime command snippet
    • http://files.eazyclad.com/uploads/1/3/0/8/130873735/4020156.pdfIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6315/files/22349489913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/vofukevutematoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/inspect_element_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0151/files/4110660028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/kavaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/68334730617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9220/4950/files/85832223931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5653/7505/files/95981401544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/smacna_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2695/files/farabinalet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7881/8715/files/suruvobifuseruzemuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/65501652071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1017/4630/files/el_modelo_canvas.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0000f299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF299 5036 bytes
SHA-256: 79b750860179069a2c239f9d60961fd8814262d0caa9d2bc09d01a8a90c1196c
font_01_sfnt_off000103bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103BC 10620 bytes
SHA-256: ef72f8fb36499c41e3b736b30e236c4cd19286444c441378b8a2cae227f69cf8
font_02_sfnt_off0001280c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1280C 16092 bytes
SHA-256: 175e0235b73e7e9d4c172dfae07370378d962b543538eed74668470b21174778

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