Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3201e797145b9a2…

MALICIOUS

PDF

34.8 KB Created: 2020-08-13 01:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32c76aa7625d02d5c597b99a1ac6f52a SHA-1: 3281d51533d1d12e2d08dc4db095afa645970a85 SHA-256: b3201e797145b9a2dada6a144f01d5582ecf182456bf3bcadd942f9094677361
140 Risk Score

Malware Insights

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

The PDF file contains a mass external PDF link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector. The document body text, though partially corrupted, includes the search query 'Panghalip panaklaw worksheets for grade 5' and the malicious redirector URL, suggesting a lure to trick users into clicking the link. The presence of numerous PDF links and a malicious redirector indicates a phishing or scam attempt.

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/wb?keyword=panghalip%20panaklaw%20worksheets%20for%20grade%205
    • http://files.feedbackmadagascar.net/uploads/1/3/0/7/130775934/tabiwewisosi.pdf
    • http://files.cvma6-3.org/uploads/1/3/0/7/130776401/tololopekuzivepazupo.pdf
    • http://files.lcisorchestra.com/uploads/1/3/2/6/132695698/8eeaf311b58.pdf
    • https://cdn.shopify.com/s/files/1/0433/6851/3686/files/sasizit.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/24930453809.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/fadazudigezijimaxukinago.pdf
    • https://cdn.shopify.com/s/files/1/0432/1784/6427/files/filariasis_diagnosis.pdf
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/87520144920.pdf
    • https://cdn.shopify.com/s/files/1/0440/2610/1910/files/bagumisukujoganunuxagan.pdf
    • https://cdn.shopify.com/s/files/1/0431/4690/3701/files/bozekotomogu.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/evermotion_archinteriors_vol_44.pdf
    • https://cdn.shopify.com/s/files/1/0432/7273/2836/files/wuxazoxolunalajuv.pdf
    • https://cdn.shopify.com/s/files/1/0448/4546/5762/files/mongoose_bulk_insert.pdf
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/87208092388.pdf
    • https://cdn.shopify.com/s/files/1/0432/9740/7126/files/how_to_become_a_good_english_speaker.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/kid_cudi_ted_talk.pdf
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/livro_zen_budismo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/vazupejupogapukofekiwure.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_off000048f1.bin
936a66d26d0ba27bf87f731ba068974c6eacb472e5d2e26af930504b54e7ec52
pdf-font-stream PDF embedded font (sfnt) at offset 0x48F1 5584 bytes
font_01_sfnt_off00005bf6.bin
8b88cf7afd041e8d17458e83cafa840411b93e7b9aa8b8ce220e8c037e26ce43
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF6 9984 bytes