Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b67a016810e1c75…

MALICIOUS

PDF

48.2 KB Created: 2020-08-23 05:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 061d2e6f740f3947a4dd1b69cd264674 SHA-1: 3d9ff33be72e620650fcb634e6759930853fa183 SHA-256: 6b67a016810e1c75d48e1172e2ec829644343420f66f5e2ecc4c42c269a687c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. This suggests an attempt to trick users into downloading further malicious files by presenting them as free resources. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify-hosted PDF links, reinforcing the lure.

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=autobiography+format+example In PDF document text
    • http://sabexebi.riveroaksveterinary.ca/uploads/1/3/2/7/132740405/585dc.pdfIn PDF document text
    • http://files.pdjensenartist.com/uploads/1/3/1/4/131408942/c5d1741ed54ab.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/1/0429/0409/2839/files/aarti_sangrah_lyrics_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/lidixodoweni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2050/7546/files/27302532679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4485/files/balderson_cheese_nutrition_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3503/2737/files/28227269490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/xipavowomubevarozuleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/zunezexavebokegiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/growatt_inverter_spec_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/foduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8927/0686/files/sadaluvewum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/84929703391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gowavofopinesifaremoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6410/6908/files/14211113838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/41495412111.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E28 6568 bytes
SHA-256: 18f4960a52d64bc83d6c304eee4b25c9ca37eec54c0f4efd5701b5568bea1fd1
font_01_sfnt_off00007e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E77 5436 bytes
SHA-256: 2320b13b85abab86fbf33f7c0d6960182b5be47ee11453d7e6f40d9e67846a6a
font_02_sfnt_off000090e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E2 10120 bytes
SHA-256: c50f6d2abe0ff7f9aeb1d7192c06ca8616f9ac4d260eb0cde1e21af34d5c6b0a