Malicious PDF — malware analysis report

Static analysis result for SHA-256 7900eb029277cfb1…

MALICIOUS

PDF

52.0 KB Created: 2020-08-05 07:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a68b04b0628683a3a1bd151acd11b37a SHA-1: f3e2553cfc3a8bd1df8d780fd1f0f83753a406ed SHA-256: 7900eb029277cfb142141f286163f4a0b201daae9ab9ffb40f98feb4857ac9bc
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links designed to redirect users to external websites, masquerading as PDF downloads. The primary redirector URL is https://ttraff.ru/pify?keyword=python+built+in+functions+examples+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users into clicking it. The presence of numerous links to Shopify domains, some of which are flagged as benign, likely serves to obscure the malicious redirector within a larger link farm.

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/pify?keyword=python+built+in+functions+examples+pdf In PDF document text
    • http://files.crystalkomara.com/uploads/1/3/1/8/131857970/3cc083d2.pdfIn PDF document text
    • http://files.ontargetmolecules.com/uploads/1/3/1/6/131607103/94da171b.pdfIn PDF document text
    • http://files.cribhawaii.com/uploads/1/3/0/7/130739251/1559381.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/1/0429/3387/8940/files/38039433882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/57892840137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/bisoruzomukavetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7750/0057/files/xavemali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/tp-_link_archer_c7_dd-_wrt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/warhammer_40k_books_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3277/1750/files/sasoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4567/files/rigolujuwulefebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/96117665165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8189/8913/files/62601185695.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
🗂 Part of campaign: ontargetmolecules.com 6 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7599 5492 bytes
SHA-256: 76e73ce3353b5a7111ea090f75bae61f991b0219fc42aeb34ce0eb8a4580521b
font_01_sfnt_off00008822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8822 14160 bytes
SHA-256: 6bedc76befbf7c7f14750a0e52d62f3962a401c0d2bf23957a4ae4e238bfdae2
font_02_sfnt_off0000b53b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB53B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378