Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b01968197605c9a…

MALICIOUS

PDF

44.5 KB Created: 2020-08-20 18:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69948e17194503e4a0edd162ab72044e SHA-1: 90c76f803070f0863fc04b87a1ae57cd79f082d0 SHA-256: 8b01968197605c9a776936774703e14c64aaf4d6d98508e41d9e44ed12ed0000
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to domains associated with link farms and redirectors, indicating a malicious intent to distribute further malicious content or phishing pages. The primary malicious URL identified is https://ttraff.ru/pify?keyword=sound+booster+mac, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to 'sound booster mac' and the URLs suggest a lure to download or access a resource, likely a scam. No scripts were extracted from this sample.

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=sound+booster+mac In PDF document text
    • http://files.buffalocommonspress.com/uploads/1/3/1/4/131407214/9728085.pdfIn PDF document text
    • http://files.takemetomydoctor.com/uploads/1/3/2/6/132683017/3e1fcdec7.pdfIn PDF document text
    • http://files.dustyhikes.com/uploads/1/3/0/8/130874101/78747c273.pdfIn PDF document text
    • http://files.benlaughtonsmith.com/uploads/1/3/0/8/130813526/8b116f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/ivern_guide_lol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/bpsc_nursing_result_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/proses_pembentukan_batuan_sedimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2009/8472/files/pumuloxoxiwoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/conversion_word_zamzar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4658/files/vunopumobobifex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3112/files/guvinebosifad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1161/0520/files/bukoditaparimamuxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3818/7413/files/baby_cloth_pattern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1237/files/kogotuwanemasekuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/21566487890.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6485 5128 bytes
SHA-256: d8909975e9f6bc87b9737ed6f21e6fdb764eff0d5558bdb4dd85c2df22336ac7
font_01_sfnt_off000075c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C2 9848 bytes
SHA-256: d809dba6eb47f3d455c667a1ade77bc3366a36c0e0931a35da5c52991a6bad67
font_02_sfnt_off0000974b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x974B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361