Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db7831f8bb8d70a…

MALICIOUS

PDF

44.8 KB Created: 2020-08-08 00:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00d7eff9666052d0f330e15697206a23 SHA-1: fde3793e6f9a359681220b19d204cfa98c1793ed SHA-256: 2db7831f8bb8d70a8ba207c242c85a994deb74b11316cc89ba1e785d1a939240
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a search result for educational documents. This suggests a phishing or social engineering attack aimed at redirecting users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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.com/pify?keyword=ignou+b.+ed+entrance+result+2020+merit+list+pdf In PDF document text
    • http://files.our-lady.org/uploads/1/3/1/3/131383743/xijupokexazopoxinuvo.pdfIn PDF document text
    • http://files.friendsofastrology.org/uploads/1/3/2/6/132681384/5652f4.pdfIn PDF document text
    • http://files.greenelkrapids.org/uploads/1/3/1/4/131406086/4471259.pdfIn PDF document text
    • http://jakumixux.azcarpetinstall.com/uploads/1/3/1/3/131383544/putejemovebil_kesof.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/1/0428/5172/9567/files/cobalt_ore_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/maxazazerar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3893/3146/files/tovafazaterefiwotegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/botibepod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/24_season_2_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/14936219921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/nutrition_during_pregnancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7642/files/97721178774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/85156136497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9308/files/kerizepevoxokepalaguzemez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5144/5400/files/arthur_schopenhauer_biografia.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 4

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_off00006ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA9 5860 bytes
SHA-256: 6f9e1a02c9d4a0219bb8b65a01d02d120a18d9b2ab7990b6afa18bb4725ec5ac
font_01_sfnt_off00008284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8284 10244 bytes
SHA-256: 50fd13050c798ebf2024afc217bce1d752e8d3a806b75978bb16c652c61f4a1e

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