Malicious PDF — malware analysis report

Static analysis result for SHA-256 79a455a4beddd7ec…

MALICIOUS

PDF

58.5 KB Created: 2020-08-26 02:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4dc3608c920b685d78865669ad3559d1 SHA-1: fbb62b29b422d1690d62b04295da9865ddb363cc SHA-256: 79a455a4beddd7ec2c6f26641f7bf8a41b87c3b63fdcc3155fe9339c777be956
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or malware distribution.

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=according+to+abraham+maslow+our+primary+source+of+motivation+is In PDF document text
    • http://files.rachelliesphotography.com/uploads/1/3/0/7/130776656/43f00a80125.pdfIn PDF document text
    • http://xejosoril.scripted-joy.com/uploads/1/3/2/6/132680813/jobekodopatof.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/1/0428/4402/9084/files/judatuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1383/2857/files/nugorezitufizakulaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/wisesegiworul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3114/8197/files/convert_newer_autocad_to_older_versi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/baadshah_1999_hd_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1945/2072/files/cv_for_teacher_job.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/apush_chapter_6-_8_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9673/4880/files/renuborak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/ruxuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/19992837561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/bullwhip_days_the_slaves_remember.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/angel_lyrics_theory_of_a_deadman.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a2b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B3 5952 bytes
SHA-256: fa12d0a7e35f97a3d8fdbc5274d5835cef3ac9454dd2345d943c6bf0e20fb70f
font_01_sfnt_off0000b6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D9 11300 bytes
SHA-256: 6b717a59289795fed00339025a6db0c2f07fd2db38e1c7d736a5a8cf7274cf7b

Open this report in the interactive analyzer, or submit your own file for analysis.