Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e5921e8c8a08b32…

MALICIOUS

PDF

43.8 KB Created: 2020-07-31 16:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8e76c4b9cef7b2d63db2ca78a92ece6 SHA-1: 425ec9b34b84c42774402c31099f912a2b1b0288 SHA-256: 4e5921e8c8a08b32744fe6901f139a2f035ce9092a2bd30c9a9d44bdea3e1c23
150 Risk Score

Malware Insights

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

The PDF document contains a deceptive message about a missing Bluetooth driver, likely intended to trick the user into clicking a malicious link. The primary malicious URL, 'https://ttraff.com/pify?keyword=bluetooth+peripheral+device+no+driver+found', is flagged as a malicious redirector. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, many hosted on Shopify domains. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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=bluetooth+peripheral+device+no+driver+found
    • http://files.betweenheavenandearth.org/uploads/1/3/1/8/131857650/xenere_sikarazas_fosafi.pdf
    • http://files.elizabethkilcoyne.net/uploads/1/3/1/0/131069789/7769695.pdf
    • http://files.thebraider.com/uploads/1/3/0/9/130969746/miwajivami-tizowated.pdf
    • http://files.veganinstyle.co.uk/uploads/1/3/1/4/131483034/6942821.pdf
    • http://files.thewellchurchpa.com/uploads/1/3/1/4/131483154/ac021f.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/86916458069.pdf
    • https://cdn.shopify.com/s/files/1/0432/9583/4280/files/lemudidunarovalugi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/45429546746.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/xokopezimosubevipemakixon.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/7031441532.pdf
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/nenawaradazezenozerenini.pdf
    • https://cdn.shopify.com/s/files/1/0431/8976/4245/files/40055565502.pdf
    • https://cdn.shopify.com/s/files/1/0432/1384/8733/files/87324359727.pdf
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/3103650902.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_off00006e2f.bin
596e44117eeb75dc049ed8c05922828b18ee2540571cbca854ea7f4ccca5b411		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2F 5172 bytes
font_01_sfnt_off00007fcc.bin
721eef48adbdfcb05d6834a11e4cef7407279abf1f25799573df83963e03e014		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCC 9988 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.