Malicious PDF — malware analysis report

Static analysis result for SHA-256 3698399806290c07…

MALICIOUS

PDF

44.0 KB Created: 2020-08-26 14:20:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 028f776185be65142e7f9d6f86f83d76 SHA-1: 3c7f9580cf433aa581150bc4b2e0a5ff041e1c67 SHA-256: 3698399806290c077fd359ba4b99c84f6c062aeb441485ba9378a19e4bdb8bd3
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, also contains the same redirector URL. This indicates a deliberate attempt to lure users to potentially harmful sites, likely for phishing or malware delivery.

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.com/pify?keyword=realtek+pcie+gbe+family+controller+advanced+settings
    • http://files.myshinglesstory.com/uploads/1/3/1/3/131384777/1d5758f.pdf
    • http://files.canaanumc.com/uploads/1/3/2/6/132682862/d1deee5c7df1b45.pdf
    • http://files.ninjamagik.com/uploads/1/3/0/8/130874629/jatupisejumelovavog.pdf
    • http://files.sunriseanimalreiki.com/uploads/1/3/1/3/131380600/89e6a.pdf
    • https://cdn.shopify.com/s/files/1/0459/2553/1815/files/biometric_attendance_system_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/dosalusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/14461832106.pdf
    • https://cdn.shopify.com/s/files/1/0444/1381/2903/files/john_deere_214_parts_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/bukato.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/cold_formed_steel_design_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/5368306130.pdf
    • https://cdn.shopify.com/s/files/1/0432/0814/7112/files/cbs_2_news_chicago_reporters.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/comment_fusionner_plusieurs_avec_foxit_reader.pdf
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/autores_que_hablen_de_la_educacion_f.pdf
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/dfas_in_manual_37_100.pdf
    • https://cdn.shopify.com/s/files/1/0432/8466/0380/files/14504088349.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_off00006c81.bin
3de3df1e2c5257abd98b342d630ea760a50205aedd25310357ae85533d543f93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C81 5848 bytes
font_01_sfnt_off0000805d.bin
6e2e262ca8281c51b4ed20365c8eda8a4204ecd88e7ca9855c2b81b6b5bf8fa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x805D 10084 bytes

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