Malicious PDF — malware analysis report

Static analysis result for SHA-256 d173b059b27c981e…

MALICIOUS

PDF

42.2 KB Created: 2020-08-20 05:42:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5874ccca037752c168a0287e32c35f7 SHA-1: bc2b97db7d0178814ef3b61ca3b96529bfa12936 SHA-256: d173b059b27c981e3c9f19a7c0af7f61b75aef71452070018f6b11065788f3d9
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Android apps on windows 10 without emulator' and includes the malicious URL. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to attract search engine traffic, with the primary malicious link being the entry point.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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+apps+on+windows+10+without+emulator
    • http://files.saintjeromeschama.com/uploads/1/3/0/7/130775109/lorafemanufazujop.pdf
    • https://cdn.shopify.com/s/files/1/0433/4338/0631/files/44827068901.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/43621974939.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/kujixutagu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/axioms_and_postulates.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/perulinedipuroniwodo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdf
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/zalewopibekud.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/55687666129.pdf
    • https://cdn.shopify.com/s/files/1/0437/3017/4101/files/ansible_playbook_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6519/files/38961361172.pdf
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/sistem_bilangan_kompleks.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_off00006681.bin
ea8e101c300ee4680929dd3500622c75abfda35a7eb1c2eaa510fffe0d6c03dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6681 5472 bytes
font_01_sfnt_off00007904.bin
e3bea604a421f17eee331c351dfe12d7e399e85a065d2482d9818020ae0a7423		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 10716 bytes

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