Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa1da292b9e3b55…

MALICIOUS

PDF

47.2 KB Created: 2020-08-04 11:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 769a0e214076bd4145dbad9e1b06984e SHA-1: b712362630c938770a1163060487a880c3dd1d28 SHA-256: bfa1da292b9e3b55bd8ec7b734be1c733f71c619d1e54ed1c204362b3673deba
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking PDF links, suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting users to potentially harmful content.

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.cc/pify?keyword=per+la+gloria+d+adorarvi+sheet+music+pdf In PDF document text
    • http://files.gethilineinsurance.com/uploads/1/3/0/7/130738637/potetenakamalikobo.pdfIn PDF document text
    • http://files.intervarsityutah.org/uploads/1/3/2/8/132814050/wuwexi.pdfIn PDF document text
    • http://files.ballycastletennisclub.com/uploads/1/3/0/7/130775446/mebono-puzajoxesapur-nakara-xidisipinexegit.pdfIn PDF document text
    • http://files.lula.site/uploads/1/3/1/4/131453843/konodigemivivivazetu.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/1/0434/6845/6086/files/74925027972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/rututijilibukogexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/lakofikimatimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/88314666071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7184/0161/files/interactional_sociolinguistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/bedozexalidotodub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/60575317762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6472/8479/files/remove_column_pandas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9217/files/juzuritalujupoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/vasokejikigidowuvaxez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/87183210717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/32798214951.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_off0000565d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565D 5632 bytes
SHA-256: 1ede1b546f1142f3be285a14d2dcb7dc245ce52c23c31316a90e36c1bf43c789
font_01_sfnt_off00006962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6962 15060 bytes
SHA-256: 235c6f2d601265941cf42ed6c2fec26cb3977a3ec15c69df3126a69996b33029
font_02_sfnt_off00009847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9847 16120 bytes
SHA-256: fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd