Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fabc0ce766fb74b…

MALICIOUS

PDF

49.9 KB Created: 2020-08-24 20:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 709208f86d73e32a6483055255677228 SHA-1: 1e2f501049edc8d0965c4a3e8987602a811d07ea SHA-256: 5fabc0ce766fb74ba568f8e0c5ac60b5e6194b6027cec138002a2046d7b098f5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text related to 'hd movie hub' and the malicious URL, suggesting a lure to a potentially harmful site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.com/pify?keyword=hd+movie+hub.+in+2019
    • http://dasulot.blackorbnovel.com/uploads/1/3/1/8/131871449/tamoderesubepodola.pdf
    • http://junawez.stjca.org/uploads/1/3/0/8/130874575/6074476.pdf
    • http://files.attitudedancecompany.com/uploads/1/3/2/7/132740281/muwevedubakikadom.pdf
    • http://files.ricky-liquor.com/uploads/1/3/0/7/130775658/noforawafowu_risukiw_zowul.pdf
    • http://fikale.bekindtoeverykind.com/uploads/1/3/1/1/131164250/juwomibope_wovuviwogi_wepewapisabo_zurobofivi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/54256000474.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/38034011018.pdf
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/dikawevasesonitufukufoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1703/6198/files/53041145503.pdf
    • https://cdn.shopify.com/s/files/1/0437/0441/8458/files/human_body_webquest_skeletal_system_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1298/files/basic_histology_and_cytology.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/xabumisugileboso.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/82335195212.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/lagutebadaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062a3.bin
310091ae79477d7bb145cb5d127332a6b4d33281802adc4a13856efff4731a5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 5028 bytes
font_01_sfnt_off0000739a.bin
9d67e5e5a05de12779db848e95a4c173feca83e9874e9eba4f1b4f1c53e38bc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x739A 10320 bytes
font_02_sfnt_off0000971e.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x971E 16164 bytes
font_03_sfnt_off0000ac37.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC37 4324 bytes

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