Malicious PDF — malware analysis report

Static analysis result for SHA-256 f366d67ec73c9634…

MALICIOUS

PDF

48.1 KB Created: 2020-08-08 02:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ecc1e30756e44276c51c6c99a0e8cbb SHA-1: 710c51e7570a39320098dccbbc43fa5520ee614e SHA-256: f366d67ec73c96346745fa8ec05b4b45ae5f1f4c8c915be1be3677f8c39c7ef3
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link farm and a malicious redirector URL, suggesting a phishing or scam campaign. The document body, though partially corrupted, indicates a lure related to an 'affidavit form' and prompts the user to call a number, consistent with callback phishing or tech-support scams. The presence of numerous external PDF links points to an attempt to manipulate search engine results or distribute further malicious content.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=sprint+asurion+affidavit+form+pdf
    • http://files.patrickwboyerjr.com/uploads/1/3/1/3/131380583/sebobop-pusululo-nerufoluv.pdf
    • http://files.makeastatementjewelry.com/uploads/1/3/1/3/131383358/3405739.pdf
    • http://tobekur.miekebreukelen.com/uploads/1/3/1/4/131454065/1468418.pdf
    • http://files.wrref.ca/uploads/1/3/0/8/130814187/8731779.pdf
    • http://files.zanefix.com/uploads/1/3/1/4/131453733/8809774.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/clasificacion_de_bacterias_aerobias_y_anaerobias.pdf
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/powipinimodugubimiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3653/9045/files/gogogesalamezuno.pdf
    • https://cdn.shopify.com/s/files/1/0428/5713/6294/files/83803795212.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/meranadadedadotisoreneguk.pdf
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/99926906921.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4542/files/spring_framework_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/8786409371.pdf
    • https://cdn.shopify.com/s/files/1/0432/1309/5073/files/suvisuvuxojixenileja.pdf
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/12299436226.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/vipapowubidexilet.pdf
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/print_website_to_android.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_off00007c34.bin
8b28fb6bd7eb5310c334256b613a68f3f4dbe2384cff2d6a5c68a7a180ec1d02
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C34 5320 bytes
font_01_sfnt_off00008e3c.bin
bfb2aa2046eefab0993c188199c5e76819b7ee811ec608855dfbf700d0d1e681
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E3C 10856 bytes