Malicious PDF — malware analysis report

Static analysis result for SHA-256 d39c2fa05cfb972b…

MALICIOUS

PDF

40.9 KB Created: 2020-08-23 05:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98227617ec40adedc5f3631d9176bfc0 SHA-1: 8d6056890f7e8e6b860e57f34a105ce2d609b3bf SHA-256: d39c2fa05cfb972b43ece5edda454ef6f07ad67dad58ea8630426a3e5ec40f21
128 Risk Score

Malware Insights

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

The PDF contains a high number of external links, with a critical heuristic firing for a PDF link farm. One of these links points to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination. The document body contains garbled text but includes the URL for the malicious redirector and a benign-looking Shopify URL, suggesting a lure to external content. The presence of urgency language further supports a phishing or social engineering attack pattern.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=accident+reporting+centre+toronto+locations
    • http://files.mooneyeshawaii.com/uploads/1/3/1/3/131398286/towok.pdf
    • http://files.thepastoralartist.com/uploads/1/3/0/8/130874524/dupizimiv.pdf
    • http://megofovu.getbeand.com/uploads/1/3/1/6/131606782/mukuxota.pdf
    • http://vukasefap.super-sounds.com/uploads/1/3/0/9/130969280/4124705.pdf
    • https://cdn.shopify.com/s/files/1/0432/7401/0782/files/63851647530.pdf
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/bootstrap_register_form_html.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/zorofe.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/26920626603.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/java_foundations_3rd_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/4450464240.pdf
    • https://cdn.shopify.com/s/files/1/0431/0886/0065/files/sownictwo_tematyczne_angielski_matura.pdf
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/xutalajazorokofudunipugis.pdf
    • https://cdn.shopify.com/s/files/1/0432/4225/8587/files/realized_colbie_caillat_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/faxodubixinon.pdf
    • https://cdn.shopify.com/s/files/1/0434/4047/2229/files/12125721480.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_off000060c8.bin
91bd621ef983b2b527e667673648898f89aea7acff44e4dc44ba24e364c2dfa8
pdf-font-stream PDF embedded font (sfnt) at offset 0x60C8 5232 bytes
font_01_sfnt_off00007291.bin
6394a22d5858f669c8511c97336ea90e4b841e4ba659db0d585b23fbbe9158aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x7291 10484 bytes