Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ab3559143e079c…

MALICIOUS

PDF

66.7 KB Created: 2020-08-20 08:42:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ffd9039a3279a6e634423833818d68d SHA-1: 9e5428d4e7c5d801d784f4c38868a1845a2ebeb9 SHA-256: f2ab3559143e079cf8c4f9955dc66dfbbfb03bcd3fbf4b4c9f31edf750603d29
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, found in the document body, redirects to malicious infrastructure via ttraff.ru. The presence of a download button lure further supports the malicious intent. No scripts were extracted from this sample.

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.ru/pify?keyword=chalkduster+font+free++windows In PDF document text
    • http://files.banditaerialproductions.net/uploads/1/3/2/3/132302892/xosesefu_naxotoweguvone_guxakedofi_wuvipilit.pdfIn PDF document text
    • http://kixuza.gcsecs.com/uploads/1/3/0/9/130969465/kitosob-bedevutolav-poxirekatogu-gadejiv.pdfIn PDF document text
    • http://mewis.t9corp.com/uploads/1/3/0/7/130775565/0c459.pdfIn PDF document text
    • http://files.drrebeccaaptekersandtonpsychology.com/uploads/1/3/0/7/130740625/c543f0c.pdfIn PDF document text
    • http://files.tracystreks.com/uploads/1/3/1/4/131411197/6909191.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1610/8701/files/50072635109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/90157998400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/wabunoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7124/2389/files/toxijov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/28248769019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/lysol_disinfectant_spray_msds_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/valonupedeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/baxisiba.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6587 2832 bytes
SHA-256: 22de88b1c0d07a59b2821642dc200d6d9e211d35bdad5c9ce05d79a6c8fdb677
font_01_sfnt_off00006f6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6B 6168 bytes
SHA-256: 50bd8db5ff9a0f03ea6ac0366ab4ff273dceb6ff0c6101ac0faff1fd52ccc92d
font_02_sfnt_off00007f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0D 5056 bytes
SHA-256: b53a9605971694cfa7e2b658b568c5667cd4c673697aaee748038f997bb96663
font_03_sfnt_off00009043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9043 43616 bytes
SHA-256: 8f044b01b46f311dd541962841be3a3c0330694ee1d90e81f0aa2d53b117f577
font_04_sfnt_off0000e80c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80C 16084 bytes
SHA-256: fb27248ec02d804caa0ce6a8dd06a8f0f211157336bc50f6c382585ff5fe3da3