Malicious PDF — malware analysis report

Static analysis result for SHA-256 810cd59d8a744509…

MALICIOUS

PDF

39.2 KB Created: 2020-08-28 14:18:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cb948f72cf9fb6655ffe52af31ba6c3 SHA-1: b5c7e0d5ca68b476eb45df440ddf0c0446485f09 SHA-256: 810cd59d8a7445092744e973f55bfeb03c4d59c1d8d1d12cacd3a7271c155780
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to movie downloads, suggesting a lure to entice users to click the malicious link. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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=the+karate+kid+full+movie+in+hindi+free+download+kickass
    • http://files.sfmwgc.org/uploads/1/3/2/6/132683142/zogifuzapapadun.pdf
    • http://files.yournameinstitches.com/uploads/1/3/1/4/131438539/misadusa.pdf
    • http://files.vegastrength.com/uploads/1/3/1/3/131383649/zubedegapadabu-niwemisane-pulokiralerub-foguvazudib.pdf
    • https://cdn.shopify.com/s/files/1/0435/3097/7431/files/69262595743.pdf
    • https://cdn.shopify.com/s/files/1/0440/4789/2630/files/58997722702.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/taxuveretakoxoda.pdf
    • https://cdn.shopify.com/s/files/1/0449/6248/0296/files/24789751621.pdf
    • https://cdn.shopify.com/s/files/1/0439/8533/8526/files/spring_framework_tutorialspoint.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/bourbaki_set_theory.pdf
    • https://cdn.shopify.com/s/files/1/0433/5783/1336/files/33471725111.pdf
    • https://cdn.shopify.com/s/files/1/0437/7460/7514/files/fivarifejekaj.pdf
    • https://cdn.shopify.com/s/files/1/0466/4259/3957/files/kikuvipenemezofaziwiro.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0077/files/chuyn_nh_t_sang_jpg.pdf
    • https://cdn.shopify.com/s/files/1/0438/2972/3293/files/gekuvisebapu.pdf
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/yugoslavian_sks_reviews.pdf
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/87639862062.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_off000059f0.bin
ee0f1fea241b18f770596b4d3f5858cfb77cdab84a0ded83e4f0d251e343a707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F0 5428 bytes
font_01_sfnt_off00006c57.bin
9ddc3a4f6044748764779a9c92aa6a24113b6aada427410227a366705dd313f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C57 10524 bytes

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