Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abb6aad587023c4…

MALICIOUS

PDF

60.9 KB Created: 2020-08-15 02:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60a18f7c25bd45df080b5d435f38c09a SHA-1: 8e590fc7a08fe6fdc8f746afadc315cab5b3d84a SHA-256: 3abb6aad587023c48e205aced6e258cc8483c2aee3d84ec4715ab5320633f530
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a link farm hosted on cdn.shopify.com, likely for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL for the malicious redirector, suggesting the primary intent is to direct users to malicious infrastructure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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/wb?keyword=8th%20grade%20language%20arts%20fun%20worksheets In PDF document text
    • http://files.seriousweightgainco.com/uploads/1/3/1/8/131872079/fcc6e606.pdfIn PDF document text
    • http://files.thedailydiplomat.com/uploads/1/3/1/0/131070597/8560553.pdfIn PDF document text
    • http://nitoki.rmahf.org/uploads/1/3/0/9/130969332/3641754.pdfIn PDF document text
    • http://files.livinglearninglandscapes.com/uploads/1/3/0/9/130969658/6740847.pdfIn 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/1/0439/9605/3662/files/personal_pronouns_esl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/ridiloxorinezematipom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8695/4139/files/starbucks_singapore_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/kotor_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/3778315124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/sominirixaxipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0221/4046/files/meiosis_mitosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8309/5459/files/12001251291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/dazuvaromumovibega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/nekavirafap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8912/files/98523134468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/89689351674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/77614675172.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9925 5424 bytes
SHA-256: 9d74778742d8412e3113ea1c8112ec623d920f4e1dcfd3af317d13b31bf918a5
font_01_sfnt_off0000ab9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB9F 10288 bytes
SHA-256: 261658dfddb7c3537cb7741391e4b7c8d3872231791b9fe48a2a71c20f8a1b71
font_02_sfnt_off0000cefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEFE 16232 bytes
SHA-256: 1bdb952dea1c6aa7c0b742d474ebfef23f69e103f1a138e4eb72ec3dfd677210