Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce96743b47dbf0a…

MALICIOUS

PDF

35.7 KB Created: 2020-09-14 10:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b79c4754254863f438fb7bdedf2b2e1d SHA-1: 31a02ea256d1ada112b307b2ba7960afdf651c8e SHA-256: 0ce96743b47dbf0a843aa835a595cdb88ada1831b90d2d96980d88f5be00e260
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and references to game-related terms, suggesting a lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam attempt.

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.cc/wix?keyword=fnaf+1+hacked+unblocked In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/d7ba0f_f5c2e123b668494fb0e2a658442e5589.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6203b9_84f7d942af86412a83f23303fd34f932.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/277b62_8df55f269abc40c3826bb30285acd150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/ilrn_heinle_log_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7310/1214/files/ffxiv_leatherworker_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/nijajupetisipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/52118842147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/confluence_page_properties_report_last_modified.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kazapuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/finavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3781/8786/files/amar_ei_baje_sovab_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/gst_annual_return_format_in_excel_9c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/df73ab_c4edcd36907d49839c02b4ff83899a37.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_67869d0b1a424653b7b6877be0e9f2df.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB3 5044 bytes
SHA-256: 47e8a49a72184875ba6c665ce7d291eda83940db9a806df38e5e7ded0cf3abec
font_01_sfnt_off00005fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE6 10112 bytes
SHA-256: 8c37c7645cf2a0c5a190a107001f912c03392795fe759881798da81c1a423b75

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