Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8b3fd53883190d5…

MALICIOUS

PDF

71.2 KB Created: 2020-08-08 05:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7baa7195c38e42254d11e89a0f475a5f SHA-1: 2c67eda8f035c8859f1800d15bfa287438e4bccd SHA-256: e8b3fd53883190d5119599a92bbae5870915cf408a95600856eb5538c0af5eab
194 Risk Score

Malware Insights

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

The PDF file contains a mass external PDF link farm, with many links pointing to Shopify domains. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to a geographical map and the URL that triggered the malicious redirector. This suggests a phishing or scam attempt to redirect users to 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.ru/pify?keyword=geographical+map+of+pakistan+pdf In PDF document text
    • http://jaliduw.kidsaroundaustin.com/uploads/1/3/0/7/130775971/pikironijelejod.pdfIn PDF document text
    • http://files.tuscaroraperformingarts.org/uploads/1/3/0/7/130775528/7701679.pdfIn PDF document text
    • http://jupumep.smartphonetripod.com/uploads/1/3/0/8/130814168/8158940.pdfIn PDF document text
    • http://files.elitetrackandfieldacademy.com/uploads/1/3/0/8/130873781/dizome_loxinutowej_gixar_vixapaxoper.pdfIn PDF document text
    • http://files.solihullurc.org.uk/uploads/1/3/1/4/131438193/kafumut_gujivet_fuzeli.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/1/0430/6462/3265/files/pepev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/71476341651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/pixukoxakajojinadojegelim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/rapevap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/busuvitutoxuwuxovagosib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/87486166604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7357/files/72722281095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/domodunagizesutorimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/svg_internet_explorer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/98995064940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/venuwogom.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000ecaa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xECAA 20680 bytes
SHA-256: ec5d306db008e658400e4799946c0cc9e33f58fbc80d697b573eef11c2f3988f
font_00_sfnt_off0000a84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA84B 5664 bytes
SHA-256: 4b123d7a5a208fa3fe010cafac7f8dd816c83105524a0d9f459a5f227465bd03
font_01_sfnt_off0000bb6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB6C 16024 bytes
SHA-256: b2711a24662250115473a68b1ab55b0142fc66f6e2729d355664820f3e7141d9