Malicious PDF — malware analysis report

Static analysis result for SHA-256 c13af16b652765dd…

MALICIOUS

PDF

55.0 KB Created: 2020-08-14 19:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b97c666e8e159fbd2ba7423e67f2b051 SHA-1: eed346c71c3936fa784c7c0613eaf8d490892118 SHA-256: c13af16b652765dd3529dff77d5242c678d5389da8a7118c5d46d0563319b40a
202 Risk Score

Malware Insights

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

The PDF file contains a lure promising a "free shopify booster theme" and embeds numerous links. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/pify. The document body, though partially corrupted, also contains this URL and a large list of embedded URLs, many pointing to shopify.com, likely to appear legitimate. The primary attack pattern is a phishing lure to redirect users to malicious sites.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=free+shopify+booster+theme In PDF document text
    • http://files.eatsntreatssandusky.org/uploads/1/3/1/6/131636819/3126912.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/1/0432/6824/3624/files/risk_assessment_tools_techniques_and_their_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/nolilasekenegirabilikox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/wowokaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5507/7781/files/python_argparse_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/5625126111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/ant_downloader_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8714/2819/files/23179424027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8293/8520/files/dixilowetotevizezodurud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0416/5276/files/wonexegonefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3538/4225/files/jemipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/jarapisapemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/zasewenafurodiso.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C29 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00006c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1D 4776 bytes
SHA-256: fcc19d48e8b010a6a0facc179112a112d521a879ded8ec7d4f953d98be9347a4
font_02_sfnt_off00007c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5F 2140 bytes
SHA-256: 3eadf3ff1ae85f7a2dd8be852d633ca148c1d24200a16cbd4325889adc5789c4
font_03_sfnt_off00008639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8639 10704 bytes
SHA-256: 28a43c50ed925d70a52aa12f19dce20a5c1adf8b7a9576e07f77a3fb20fa56d9
font_04_sfnt_off0000ab04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB04 16096 bytes
SHA-256: 010fedfb0e8455d497fb8a6767d0ed7089474232cfc9291a6c65c70cfd9a5baa
font_05_sfnt_off0000bfdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFDB 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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