Malicious PDF — malware analysis report

Static analysis result for SHA-256 f232481c6bedb75d…

MALICIOUS

PDF

38.8 KB Created: 2020-08-14 20:43:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76aee77472f1aafe359c107b4602d2a1 SHA-1: a2331d0f2e06463eb8b0601cf1ba67837039da43 SHA-256: f232481c6bedb75dcbbe35ba7f6ea765a5b1c26ab99ef8ff5fa837a11f3e776d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with the primary heuristic identifying it as a PDF link farm. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=ncaa+volleyball+score+sheets+printable', is flagged as a known malicious redirector. The document body contains garbled text and what appears to be metadata, but the primary malicious activity is the mass distribution of links.

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.cc/pify?keyword=ncaa+volleyball+score+sheets+printable
    • http://vusur.wesmillermusiclessons.com/uploads/1/3/2/8/132814930/wupilenanoloxi.pdf
    • http://ziruxati.sharonscouts.org/uploads/1/3/1/1/131164250/puvapop.pdf
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/arabic_keyboard_software_free_for_laptop.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/kisuvavepu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/head_first_sql_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3587/files/89816751209.pdf
    • https://cdn.shopify.com/s/files/1/0444/0460/5094/files/42836674308.pdf
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/anarchy_online_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/59234929851.pdf
    • https://cdn.shopify.com/s/files/1/0431/9769/4109/files/14512586687.pdf
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/40105176806.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/sabokozakowotoku.pdf
    • https://cdn.shopify.com/s/files/1/0435/6482/6783/files/bikini_body_mommy_nutrition_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/6537/6919/files/business_strategy_case_studies_with_solutions.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_off00005681.bin
8763bcbf228868de20444f86b7c6d0ccfa76edf0b6c1cd0885af7c196564041a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5681 5292 bytes
font_01_sfnt_off0000687f.bin
ead30ba03c26393822d9c709318d8731f565129e400805dfc4e510e3ec295dd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x687F 11728 bytes

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