Malicious PDF — malware analysis report

Static analysis result for SHA-256 353f0ed4cc9def41…

MALICIOUS

PDF

93.3 KB Created: 2020-08-21 02:10:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d1d1cf3271d8b2b6851ff7adde15e37 SHA-1: 0f502b90c71c3ddf54d04eae1a720bbd35bb7bfd SHA-256: 353f0ed4cc9def413cd184284c525a0ad00b8deef9e27c5607694cf805b16eb4
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same lure text as the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a link farm, likely to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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=green+transformer+name+age+of+extinction
    • http://files.doitforthemems.com/uploads/1/3/1/3/131380596/jisixaxuka-pakagewopeguki-ruzisigewaget.pdf
    • http://files.newyorkautoschool.com/uploads/1/3/1/8/131856713/nakegekidetamutemike.pdf
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/vegese.pdf
    • https://cdn.shopify.com/s/files/1/0435/2439/1071/files/agnisakshi_serial_telugu_naa_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sedafasejizal.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/43339822893.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/stardew_valley_seed_maker.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/dovevuperopufuwoli.pdf
    • https://cdn.shopify.com/s/files/1/0461/7774/7097/files/chimusebo_by_afunika.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/jubovolemelubivup.pdf
    • https://cdn.shopify.com/s/files/1/0454/8123/0488/files/nedon.pdf
    • https://cdn.shopify.com/s/files/1/0433/4836/1375/files/bipedal_walking_robot.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/pesinigago.pdf
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/77415315462.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/63093485639.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/call_blacklist_app_android.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118de.bin
bc0e8005632ad7f285154d65e0d6b868bfe3f013446ff5eac4932f977dd6fbc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x118DE 5056 bytes
font_01_sfnt_off000129fa.bin
4dc7fccdf4995fbfa195bcf99962c6a410e168c933a78af8e8ac612260d71ce1
pdf-font-stream PDF embedded font (sfnt) at offset 0x129FA 14960 bytes
font_02_sfnt_off000158e4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x158E4 4324 bytes