Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d4552a828f1c730…

MALICIOUS

PDF

49.2 KB Created: 2020-08-30 04:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9486803c3c2c8697856140fd2d909fb3 SHA-1: cf26d2d93a1658a1aa55950235490ee00a26eba2 SHA-256: 0d4552a828f1c7302ed409dcc37e4da25451c9ae82809473abc549c92bc9f3bb
162 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is a common tactic for delivering malicious payloads or phishing pages. The document body and heuristics indicate a lure related to 'Jurassic park putlocker' and a download button, suggesting a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=jurassic+park+putlocker
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/getowegonalitizezipetoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/sap_business_objects_web_intelligence.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6649/files/belajar_conversation_bahasa_inggris.pdf
    • https://cdn.shopify.com/s/files/1/0434/1740/3549/files/bigflo_et_oli_paroles_dommage.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/characterization_methods_of_nanoparticles.pdf
    • https://cdn.shopify.com/s/files/1/0454/6674/7030/files/best_book_for_data_structures_and_algorithms_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0436/1977/8720/files/22883760494.pdf
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/dugusoposekipupurure.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdf
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/86285711273.pdf
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/29487503173.pdf
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/malukemowoguvuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/3195/1517/files/affaire_de_cur_tome_1_six_de_cur.pdf
    • https://cdn.shopify.com/s/files/1/0435/2566/9028/files/cat_song_video_punjabi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0527/0437/files/95746181340.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbecc9a1d58c46e9b45e70e6f34fd5c9.pdf
    • https://static.usrfiles.com/ugd/b8c837_e285629aa57b4869b8e57c127a89b030.pdf
    • https://static.usrfiles.com/ugd/b8c837_a341ba4002a24a2db20cc92eff796463.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d85.bin
68200d807092905ae54d82a6f0927d8190744d7aa1249d9204b3108d99c187ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D85 4980 bytes
font_01_sfnt_off00007e82.bin
a01394f342df4bb046af5138010aab3e1466008e62fd8f67027c83955de40fab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E82 10756 bytes
font_02_sfnt_off0000a2e0.bin
723e6034cfa8adeebabcb44fcd9a81d05c7492831ad3e7dd1a7a87e114838b67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E0 16064 bytes

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