Malicious PDF — malware analysis report

Static analysis result for SHA-256 2315f86c6ad8dbbe…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 17:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efce8785ac3539103576ff93fa90781d SHA-1: f48262dfc808305c13fb5930bff1c684d621952d SHA-256: 2315f86c6ad8dbbe9e9d033af060e27210e410feb9bd8a74cfa361f40b93ca89
130 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Android pay not available in your country', which is a common theme for phishing and scam attempts. It embeds a large number of external links, many pointing to Shopify-hosted PDFs, suggesting a link farm designed to manipulate search engine results or distribute malicious content. One critical heuristic identified a direct link to a known malicious redirector at 'ttraff.ru'. No scripts were extracted from this sample.

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.
  • 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
  • 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=android+pay+not+available+in+your+country
    • http://files.1860sciviliancelebration.com/uploads/1/3/0/7/130740521/5925846762.pdf
    • http://dufodopek.bayareareclaiming.org/uploads/1/3/0/8/130814004/90c928195b48a08.pdf
    • http://files.fengshuicollective.com/uploads/1/3/0/8/130874115/5529566.pdf
    • http://files.mahamevnawasaskatoon.com/uploads/1/3/1/3/131383826/731111.pdf
    • http://sakuwur.investwithsmdc.com/uploads/1/3/2/3/132303374/d29bcc06db.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/71872280466.pdf
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/91196089205.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4748/files/economic_lessons_from_asian_tigers_japan_europe_and_america.pdf
    • https://cdn.shopify.com/s/files/1/0432/0103/6443/files/psy_gentleman_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/77152881731.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/93049238997.pdf
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/41573251463.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/surface_area_of_cube_and_cuboid_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/pufijogigelukowonamebux.pdf
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/prentice_hall_biology_book_online.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_off000066d8.bin
0d5bea5cc6b2138ffb47cc1912bd60bb1eb2931a041d2e9090dcbb42b27f35ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D8 5180 bytes
font_01_sfnt_off00007885.bin
7b885608eb441c60d6bf0f13da64311312899927889bca0ce0387360f73b7999
pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 10636 bytes