Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c9822b7d517c17b…

MALICIOUS

PDF

40.7 KB Created: 2020-08-10 15:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aef97462d7dc5ff7057d7204d5519cd9 SHA-1: 39e227f3d8570798a12ea5b3152049a0722c54cf SHA-256: 7c9822b7d517c17b280b36bc3afe5398551b66ea21f0e0aec024ac1eb357cb68
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.cc/pify?keyword=jurnal+pluralisme+di+indonesia+pdf' is identified as a malicious redirector, likely leading to further malicious content. The document body, though heavily obfuscated, contains this URL and numerous other links, many pointing to Shopify domains, suggesting a coordinated effort to distribute content or lure users.

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.cc/pify?keyword=jurnal+pluralisme+di+indonesia+pdf
    • http://files.cameraygal.com/uploads/1/3/2/6/132681409/guwapot.pdf
    • http://files.goodeatsbyjeff.com/uploads/1/3/1/3/131383333/sodasixubinawoleroda.pdf
    • http://tituwujod.sanctuarybytheseacounselingservices.com/uploads/1/3/0/7/130776257/2544945.pdf
    • http://files.thelighthouseinternational.com/uploads/1/3/0/8/130874495/dupeg_puzodivugemuraj_vamuwinuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/dijaronotipiwuvux.pdf
    • https://cdn.shopify.com/s/files/1/0449/3488/9627/files/prove_negative_binomial_distribution_is_a.pdf
    • https://cdn.shopify.com/s/files/1/0434/5551/2738/files/96426362579.pdf
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/sofub.pdf
    • https://cdn.shopify.com/s/files/1/0434/4555/1256/files/instafollow_pro_apk.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/mirulijejataje.pdf
    • https://cdn.shopify.com/s/files/1/0434/3074/0135/files/papesivezedafiviwuvoxalon.pdf
    • https://cdn.shopify.com/s/files/1/0435/8530/6782/files/institutional_ownership_definition.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/93379931534.pdf
    • https://cdn.shopify.com/s/files/1/0433/2191/7598/files/wipujorasosil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/47108720709.pdf
    • https://doi.org/10.24042/ajsla.v9i1.1408
    • 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_off000053d1.bin
a6680057bf770ad980423ab2a75e1939ec319ed777aabf4fa7cf7f49d7de2108
pdf-font-stream PDF embedded font (sfnt) at offset 0x53D1 4980 bytes
font_01_sfnt_off0000649a.bin
76a3ea7b1715eb3a1604b006d64d66e127c2563fd25a307df21e09cfa53cfe36
pdf-font-stream PDF embedded font (sfnt) at offset 0x649A 10208 bytes
font_02_sfnt_off00008780.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8780 4324 bytes