Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b9d1dbe03ee81d…

MALICIOUS

PDF

67.5 KB Created: 2020-08-08 10:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d08eb850909ee502eba9c9f9db1ff09 SHA-1: 354df771aac3754eb6b1898a3a3f0e6271383b88 SHA-256: f2b9d1dbe03ee81dfbc2e81a8669332bf608510a5327056fc9884544d350c5a0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=diazonium+compounds+pdf'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or manipulate search engine results. The document body, though heavily obfuscated, contains the same URL, reinforcing the 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.ru/pify?keyword=diazonium+compounds+pdf In PDF document text
    • http://files.hotrodhenrys.com/uploads/1/3/0/8/130874129/mudubewusobodog_rusipoz_lupelel_vasixeb.pdfIn PDF document text
    • http://files.nslimgoodies.com/uploads/1/3/2/7/132740342/guvesarumozekom_waxabivewe.pdfIn PDF document text
    • http://files.maryscreativespot.com/uploads/1/3/1/4/131407111/23aa5d8de7b6.pdfIn PDF document text
    • http://files.algomaubiz.com/uploads/1/3/1/3/131383318/pegot.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/1/0430/3680/3233/files/76352642744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/lejixugavozin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1965/7628/files/gunigajomakoxifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/nevivanet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4842/6920/files/degree_2nd_year_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/sigopajixuxelupisede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3373/9932/files/bodezavosimebevarukibef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3185/4247/files/68511448507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/xagigalolinib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/pokix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/93014878275.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F8 5224 bytes
SHA-256: ddb63e999b4145efc48b7a14d07e7bdda56eefe15a91991d53d45027dc9441a2
font_01_sfnt_off0000c8c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C2 10240 bytes
SHA-256: df57e89528796d64072c704f9c4f7d41015671730243a2fbdea116ae423823de
font_02_sfnt_off0000ec0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0C 16080 bytes
SHA-256: a1bdc24ec6dc0332449754d26803ee00bb6717469f64a18f47c680e22104396b