Malicious PDF — malware analysis report

Static analysis result for SHA-256 88d750c60b419f9f…

MALICIOUS

PDF

40.9 KB Created: 2020-08-21 22:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b6812983414b5b40ee36f517cdc9d75 SHA-1: 95a7255578e85fbd0703d2492c9ec73a3a394770 SHA-256: 88d750c60b419f9fbaaf83dbb2beb5a2db55da688deeb854e6adb12686f49dff
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a direct link to a redirector, indicating a phishing or scam attempt. The primary malicious URL, 'https://ttraff.ru/pify?keyword=bigo+live+hack+apk+2018', is designed to lure users with the promise of a hack for 'Bigo Live'. This URL is classified as a malicious redirector, likely leading to further malicious content or malware download.

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.ru/pify?keyword=bigo+live+hack+apk+2018
    • http://files.suitsswagger.com/uploads/1/3/1/4/131453124/tuwewinil_loxipesalexun_rupabujaveja.pdf
    • https://cdn.shopify.com/s/files/1/0432/1378/3203/files/2614689655.pdf
    • https://cdn.shopify.com/s/files/1/0433/9364/6753/files/51886155364.pdf
    • https://cdn.shopify.com/s/files/1/0428/4874/7676/files/49653449311.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/soxesubadabezimokezeneb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7665/7057/files/bunowasipat.pdf
    • https://cdn.shopify.com/s/files/1/0449/3272/6952/files/personal_statement_template_doc.pdf
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/a_thousand_years_sheet_music_piano_guys.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/nobuzufisibilejadovasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/9820/9446/files/complex_buying_behavior.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/42847204293.pdf
    • https://cdn.shopify.com/s/files/1/0433/6405/7238/files/varen.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4453/files/tebesekeparotobuv.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_off00006173.bin
6edf39a9d438c4517e7c9f06643721d9846d8a4c8409261990ba1273395c4f0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 5616 bytes
font_01_sfnt_off0000749e.bin
49aeb914b166b5e2d86fb677ab8961a54440c3ac2bd68ab228d4b30a30db8f83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749E 10064 bytes

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