Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b5e1536a1f93aa…

MALICIOUS

PDF

42.2 KB Created: 2020-08-18 13:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c453ae160b746e28d0f99a22293ee569 SHA-1: f4c62a2e2969751b18bf09602b5a45cd72e8b46c SHA-256: b2b5e1536a1f93aa5d3ee5de34533baab5dc67b2367d640c572cc0be11781585
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a Suzuki motorcycle owner's manual. This indicates a phishing or social engineering attack. The document body, though heavily obfuscated, contains the same lure text and URLs. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=suzuki+bandit+600+owners+manual+pdf
    • http://files.uwwatersheddynamics.com/uploads/1/3/0/9/130969322/1d1b1c4.pdf
    • http://files.stnicholaselearning.ca/uploads/1/3/0/9/130969965/namogiwuxodikuvagit.pdf
    • http://files.fairwaystorrington.com/uploads/1/3/2/6/132695451/2322674.pdf
    • http://tofula.madelize.com/uploads/1/3/1/4/131437423/b68a95ea27b46.pdf
    • http://fizimoto.hseforum.nyc/uploads/1/3/1/4/131437130/f2cc6a2131217.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3857/files/42790922413.pdf
    • https://cdn.shopify.com/s/files/1/0440/5752/6437/files/admiralty_law.pdf
    • https://cdn.shopify.com/s/files/1/0433/8132/5987/files/guns_germs_and_steel_discussion_questions_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/28744946449.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/propiedades_del_apio.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/advanced_renewable_energy_sources_tiwari_download.pdf
    • https://cdn.shopify.com/s/files/1/0444/2708/3943/files/alta_badia_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/vijudokukifulid.pdf
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/medilasirawebopilofu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/48099499067.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/fomelimiji.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/42096102205.pdf
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/jefanenugurad.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6195/files/vita_di_galileo_brecht_gratis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a7d.bin
ce742fc7c932fb91e2f6c2417fac5054c11eb7b5fad55e0175e9408d791d8e26
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7D 5932 bytes
font_01_sfnt_off00006ea7.bin
f05543a899b9ecd80721de518ee73403a7d074316a882835d2edcf268de1c35d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA7 14464 bytes