Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7195d3897a5bfc1…

MALICIOUS

PDF

53.9 KB Created: 2020-08-01 14:33:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1339d3d26b517d3e6907553863ea4ae SHA-1: db481e48cb6cb229bbd2bd0cc2022a4a608863e1 SHA-256: f7195d3897a5bfc1dad0ce77fc84d24b5f0b3866d479c5acb1d41ba0a09909ce
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to SEO-optimized PDF hosting sites, and a critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=wolf+team+hack+2015'. This suggests the document is designed to lure users into clicking malicious links under the guise of a game hack download. The ML classifier strongly supports the malicious nature of this 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.com/pify?keyword=wolf+team+hack+2015 In PDF document text
    • http://files.developmentechnwkllc.com/uploads/1/3/0/7/130776344/8f711bc7ba1f.pdfIn PDF document text
    • http://files.elmrealestateanddesign.com/uploads/1/3/1/8/131871704/satubopijepawub_karijisupapumu_bamonokosozuxim_fuboziforojuz.pdfIn PDF document text
    • http://files.machine-analytics.com/uploads/1/3/0/7/130776439/252662.pdfIn PDF document text
    • http://files.fosteringsuccessllc.com/uploads/1/3/2/7/132712080/solemomasusod_mitofuxiw_punino_mepasidaf.pdfIn PDF document text
    • http://files.wistorian.com/uploads/1/3/1/6/131637631/jotuxunafex-fuvilasavi.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/1/0431/7318/3643/files/90980187149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/nakimutosexex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2167/files/desamisadejinisodetanuxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5198/2754/files/zekase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/gavulajirinovojevoluzabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0277/3156/files/27533019649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/gaxizegudubozamubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/kuxetinarovixekabur.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
    • https://www.youtube.com/watch?v=aE2JlH7Rs3sIn 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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000671d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671D 5008 bytes
SHA-256: 56a33bc41be5d5ec39ef405299f0de4e8a8244dbbf5e88a0d5d16953c59ce6e6
font_01_sfnt_off0000784b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784B 11044 bytes
SHA-256: a4ad7378735129166d046e3a44ff25493a59215880ee24a82cea8b29b4aa3eb1
font_02_sfnt_off00009e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E1B 18304 bytes
SHA-256: 98b51b6d02ab7c94c2ba5303f4a9bb7e2e68267d693cadc4fd83c312e925f5dd
font_03_sfnt_off0000bb12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB12 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378