Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c94b16efd8175a…

MALICIOUS

PDF

146.8 KB Created: 2020-08-09 03:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1625ce6357a7845bf2af28cebec71ab6 SHA-1: df87b45174702cda2df56738e1cc35600f4498e5 SHA-256: 46c94b16efd8175a93bba063092b5ecd545b5092f0827066ded552702251a299
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. The ML classifier also flagged this PDF with high confidence. The embedded URL in the document body, 'https://ttraff.com/pify?keyword=sociology+meaning+nature+and+scope+pdf', is the primary indicator of malicious intent, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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=sociology+meaning+nature+and+scope+pdf
    • http://wurafasam.ingridasfitandfab.com/uploads/1/3/0/9/130969723/mixiguketiruz.pdf
    • http://nolewafux.matersports.com/uploads/1/3/2/6/132696030/4307779.pdf
    • http://files.lamsgolflinks.com/uploads/1/3/0/7/130739287/lenoresok_lagujes.pdf
    • http://files.kticanali.com/uploads/1/3/1/1/131164063/nabodesijon.pdf
    • http://files.lebonenfants.com/uploads/1/3/1/0/131070325/5161591.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/27970288792.pdf
    • https://cdn.shopify.com/s/files/1/0431/8068/7524/files/4971017084.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/50586220522.pdf
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/9011974443.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/kenumidoludowizavujape.pdf
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/32764509668.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/fibagaperarofolodimokude.pdf
    • https://cdn.shopify.com/s/files/1/0428/9809/6284/files/93916371222.pdf
    • https://cdn.shopify.com/s/files/1/0435/5240/7704/files/vizegewujixusezozale.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32823332632.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/zisaralufegewusewikow.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000202f7.bin
38d911a90d5846a3c8f1e12f2ca775460417afbb825d959fe4643cc19bf3da87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x202F7 5680 bytes
font_01_sfnt_off00021641.bin
c7b10f0ffdbdba30ea39506cbba9f12d98678da5d16b88c46349b92a1f13e815		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21641 11568 bytes

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