Malicious PDF — malware analysis report

Static analysis result for SHA-256 9516a2f808fa6818…

MALICIOUS

PDF

49.7 KB Created: 2020-08-03 07:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74b595c755b295eaf0410902c9455386 SHA-1: 2c3b3937ec364b30bc0e482974dc982f5b6a32c8 SHA-256: 9516a2f808fa6818c64b04d2c4f6293a99bbc05433ad6826435e10ca7a02cea1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack. The primary malicious URL is ttraff.cc, which redirects to a page related to 'gantala panchangam 2017 telugu pdf'.

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.
  • 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.cc/pify?keyword=gantala+panchangam+2017+telugu+pdf In PDF document text
    • http://files.curlewcrew.com/uploads/1/3/0/8/130815437/walaperuwofovofum.pdfIn PDF document text
    • http://files.galesburgrescuemission.org/uploads/1/3/0/8/130814209/0b8687df543212a.pdfIn PDF document text
    • http://files.lizbethgiftsnthings.com/uploads/1/3/1/8/131857049/jamafimeromup-bijukiporinogu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9538/3446/files/weighted_standard_deviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/ipc_a_600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4555/9189/files/remibozomemuvowanur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/61488519546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5285/0586/files/70595310889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5572/7260/files/75457200055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3363/files/game_of_thrones_season_2_720p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/56729149892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/echo_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/prescott_microbiology_9th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/podefop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1319/files/44800652684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/chevy_cruze_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6333/files/11811144362.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 2

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A3 5456 bytes
SHA-256: 2899fb36055357320cd7aa9bdc640ca7b883495a22587e2af2d8a8d6f2d34e53
font_01_sfnt_off00007615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7615 5672 bytes
SHA-256: dcd76fbe4a7ed8d3b53d77356a73fcb89d851d41fed021a55079cc15aedb7ad4
font_02_sfnt_off000088f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F3 9840 bytes
SHA-256: 960b459501f61f02bf2d95ede7e49a7ae5959377c27fb8d1741343251c2e7c09
font_03_sfnt_off0000aaac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAAC 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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