Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f056d2d24c0c39c…

MALICIOUS

PDF

51.9 KB Created: 2020-08-20 22:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 672ec78f7f2c7bb682ae974a1da44acc SHA-1: 011b41db798ee616a590b8f755a1f0ea7ad55c36 SHA-256: 2f056d2d24c0c39cc07f39a8dab8334198228dd1ac8f35bfb7d46a1d52764fcb
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to lure users into clicking on further links. The document body, though heavily obfuscated, contains the same lure text and URL as the malicious redirector. The presence of numerous links, including a malicious redirector, suggests a phishing or scam attempt designed to lead users to potentially harmful content.

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.com/pify?keyword=aditya+hridayam+lyrics+in+malayalam+pdf
    • http://files.cork49gv.com/uploads/1/3/1/4/131437649/6800837.pdf
    • http://kofifuzaz.mgr-design.com/uploads/1/3/1/8/131857631/4e08f3a05d.pdf
    • https://cdn.shopify.com/s/files/1/0429/2332/7644/files/jurnal_bahaya_narkoba_bagi_generasi_muda.pdf
    • https://cdn.shopify.com/s/files/1/0440/0663/7726/files/penodemasifebuxoveloral.pdf
    • https://cdn.shopify.com/s/files/1/0431/6699/0498/files/navenemufufirofosesite.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/94607803660.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/bifutivuzufiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/tazemozusidixudik.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/bodyweight_training_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/apostasia_en_la_iglesia_cristiana.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/ganax.pdf
    • https://cdn.shopify.com/s/files/1/0433/8827/2805/files/96839178304.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/basic_income_tax_course_volume_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pamuzinesikajojefex.pdf
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/92978430603.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_off00008dc0.bin
7eed0ca1ff780acbbf8f8d71180192ff3e2a779bd0a9ff2717be81ca106392c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC0 5484 bytes
font_01_sfnt_off0000a04b.bin
d3619bb4b27c8bf885683c195951b1d99a8a5b1903f6f7735e7fd5efefe87bc0
pdf-font-stream PDF embedded font (sfnt) at offset 0xA04B 10024 bytes