Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee8ec7ae090453c…

MALICIOUS

PDF

334.5 KB Created: 2020-09-07 18:25:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f25d7f6e0bf12a47307bacc45182be21 SHA-1: e156d9a236a64c7962226612647b91912b464080 SHA-256: 5ee8ec7ae090453c7cc4938c98b12f346beacc00ec367aa35cd5486ecc140ead
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains heuristics indicating it is a malicious redirector and uses lures common in advance-fee scams, such as fake invoices or lottery winnings. The embedded URL, https://ttraff.ru/pify?keyword=11th+standard+english+guide+pdf, is flagged as a malicious redirector. While no scripts were extracted, the document's structure and embedded URL strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/pify?keyword=11th+standard+english+guide+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/3791/6312/files/palatanavoruf.pdf
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/85877553201.pdf
    • https://cdn.shopify.com/s/files/1/0462/1448/0026/files/free_holiday_flyer_templates_microsoft_word.pdf
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/translation_reflection_rotation_dilation_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6520/files/fovoguvum.pdf
    • https://static.usrfiles.com/ugd/55cc32_384cfcce66df4926bc18e9e7ef3b43fe.pdf
    • https://static.usrfiles.com/ugd/2072cd_3f564b7086444a37ba2adea4d4959ec0.pdf
    • https://static.usrfiles.com/ugd/3826db_ef56d00367c14c8f8b5c6f94b936461a.pdf
    • https://static.usrfiles.com/ugd/73c254_c3c5fb8bf6b842bb8ee45f65198f9400.pdf
    • https://static.usrfiles.com/ugd/ce14f3_8aedd132ad104864bafd2abd4d5a975b.pdf
    • https://static.usrfiles.com/ugd/e8506d_8cff5a8e97884d7f8f1663fbec2a66b1.pdf
    • https://static.usrfiles.com/ugd/963627_79e4e7b7100f42f7b5eeb5e024b00dd5.pdf
    • https://static.usrfiles.com/ugd/8b4172_512ae3c8c9e349e493e0ec78a56cbbda.pdf
    • https://static.usrfiles.com/ugd/f5892c_8a759ee5821e44c3859493df04bb2574.pdf
    • https://static.usrfiles.com/ugd/c83fdb_ab6f6376155d48d28c646a7191fc9bf7.pdf
    • https://static.usrfiles.com/ugd/895bef_0654f518a7144ce790b5cba5c2d36086.pdf
    • https://static.usrfiles.com/ugd/f64db8_f19aa2fbb07943648c08f90ca97852b1.pdf
    • https://static.usrfiles.com/ugd/3fb742_5b3fc58d95bf409cb9c39da1214f1dd2.pdf
    • https://static.usrfiles.com/ugd/4479ed_961df41cf1d64686bd5da8d1826c7901.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e474.bin
b1f1a610f50da83719a17176c3af5759c8b8dcd10d5535e36594cababac7687c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E474 5260 bytes
font_01_sfnt_off0004f653.bin
e7d606fd19b6a83e02b605bfd684f40b53d3f673e4027cfe5664ce3010063f6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F653 16660 bytes

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