Malicious PDF — malware analysis report

Static analysis result for SHA-256 dad222b972020bba…

MALICIOUS

PDF

62.3 KB Created: 2020-08-12 06:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 732a08379b78b9e2aa3c7c580a22281b SHA-1: d1bbabbc59ab7cd00f25619946217140e6b1e35d SHA-256: dad222b972020bbaa51bd3b62219739fd2e31d56788eb09e9262283f1abe1512
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=bonus+act+amendment+2020+pdf+nepal'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for the malicious content. No scripts were extracted from this sample.

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=bonus+act+amendment+2020+pdf+nepal
    • http://files.paintedtabledesigns.com/uploads/1/3/0/7/130738632/tameketogala.pdf
    • http://buvatefe.thecenterlifeinbalance.com/uploads/1/3/1/3/131398140/176047f8.pdf
    • http://supinag.cigarrenegade.com/uploads/1/3/0/7/130739625/pirapedi.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/30140839734.pdf
    • https://cdn.shopify.com/s/files/1/0428/6418/1404/files/statistical_methods_in_economics.pdf
    • https://cdn.shopify.com/s/files/1/0444/5110/2887/files/garmin_nuvi_1350.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/18374284877.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/60743267040.pdf
    • https://cdn.shopify.com/s/files/1/0433/5747/0874/files/tipop.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/tuxanu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdf
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/banking_act_mauritius.pdf
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/boats_and_streams_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/livro_neemias_hernandes_dias_lopes.pdf
    • https://cdn.shopify.com/s/files/1/0435/2311/3119/files/git_http_proxy.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008923.bin
d34f7a1eec675b11cda219812a2a464ac44b568c79497b30ab025d2be18e8784
pdf-font-stream PDF embedded font (sfnt) at offset 0x8923 5528 bytes
font_01_sfnt_off00009bdf.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BDF 3720 bytes
font_02_sfnt_off0000a742.bin
0a717c5317b34cfcfec35bbc0efedb288c5c074f1b9e21e419927857567fb7d5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA742 14060 bytes
font_03_sfnt_off0000d3b3.bin
e94020cccca56d5ba9ad46742e8748a85609d2263b86d0a28d88ecba3160e3e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B3 6300 bytes