Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b2523327b60382…

MALICIOUS

PDF

46.7 KB Created: 2020-08-05 13:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 150b579a92be481c1683bc62be44dbc4 SHA-1: 8fde1b4a34e268771c30969b53f0f994090af0bd SHA-256: 06b2523327b60382068f04b80e0ebeb33e573a444a444066d73d3d4676955f8d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector at 'ttraff.cc'. The presence of a 'download button' lure and the ML classifier's high confidence further support malicious intent. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary goal is to redirect users to potentially harmful content.

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=morphology+the+words+of+language+pdf In PDF document text
    • http://files.ctefaculty.com/uploads/1/3/0/7/130776508/guneturetoloxet.pdfIn PDF document text
    • http://files.cassiemseinuk.com/uploads/1/3/0/7/130775366/nelike-kufeboge-rafalus.pdfIn PDF document text
    • http://files.laperspectivestudio.com/uploads/1/3/1/0/131069764/sazake-kososavirenax.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/1/0440/0339/3694/files/54454006539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/intex_pool_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0264/2075/files/jipapali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4838/7239/files/kilovokikemijajuzasukis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/lone_wolf_adventure_game_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/81531367449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1087/3765/files/gebarufavabivugewona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/periappendicular_infiltrate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81274949660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8334/7606/files/fibras_textiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0271/4533/files/76750696717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9377/7827/files/45396587582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/jezete.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6856 5336 bytes
SHA-256: 5ab39addcbc331440fb3697b1a237ff20aabaad26b4284ea47a13ec465245f11
font_01_sfnt_off00007a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A96 10800 bytes
SHA-256: 4be4803cc532d975b26a60cf2df1ff8ade5e7aa044aaa6fd4ebcce001698a584
font_02_sfnt_off00009f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1B 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34