Malicious PDF — malware analysis report

Static analysis result for SHA-256 f879645dad94e73b…

MALICIOUS

PDF

41.6 KB Created: 2020-08-22 00:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6813a9d73901b5b8f1ef3f95e5265198 SHA-1: c4ab518c80dbba8799e546cbd99d17adae6badab SHA-256: f879645dad94e73bf495992fb8606a583b8abf688bf6ecb987d0de62e748813f
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL. The document body, though heavily obfuscated, contains the text 'Camerafi live free for pc' and the malicious URL 'https://ttraff.cc/pify?keyword=camerafi+live+free++for+pc'. This suggests a social engineering lure to trick users into downloading potentially unwanted software or malware. The PDF also contains numerous links to Shopify-hosted PDFs, likely part of an SEO manipulation scheme to improve search engine ranking for malicious 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=camerafi+live+free++for+pc In PDF document text
    • http://nawonew.a-1autoinc.com/uploads/1/3/1/4/131453724/sozavosijun-gizamugano-xaxusufuzevi.pdfIn PDF document text
    • http://files.ps177.com/uploads/1/3/1/3/131379111/7825439.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/1/0434/8693/7253/files/24570321566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/46826042959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/89254106178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/55927881883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/gartner_studios_template_61407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0819/5735/files/spectra_s2_breast_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xezunegudowafosixezuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/0452/7514/files/gozifeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/pititak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6794/7673/files/20800233938.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F7 4948 bytes
SHA-256: 06703632d65fca820c70b688e65e680212b16c59bf904938825d67d1e5ef67c3
font_01_sfnt_off000076bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BC 10156 bytes
SHA-256: e326959059f897f883974faf150c84ec5f94fadd2d1da13ccc7a3f5f66291514