Malicious PDF — malware analysis report

Static analysis result for SHA-256 39752b15b358b920…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 15:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 462ecedd19c0053bea4885048cea9488 SHA-1: 8f8e1226cf388cf603cf7da869e1e116623ef063 SHA-256: 39752b15b358b92053ac3ecf617202709e91724330444f4ff123036e94bf533e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=aldous+huxley+pdf+english, which is likely intended to redirect users to a malicious site. The PDF also contains a PDF_SEO_LINK_FARM heuristic, suggesting it is part of a larger network of linked PDFs designed to manipulate search engine results and distribute malicious 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.cc/pify?keyword=aldous+huxley+pdf+english
    • http://files.whyrunnow.com/uploads/1/3/2/6/132696112/4019260.pdf
    • http://files.trinitylutheranconnellsville.org/uploads/1/3/0/7/130776266/ce273f31d.pdf
    • http://koxelez.everkincritters.com/uploads/1/3/0/8/130874284/6f3d3e93675.pdf
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/65281774978.pdf
    • https://cdn.shopify.com/s/files/1/0438/1877/8781/files/nuvofibodosilofujujigad.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/33525718057.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/89524892631.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18813115042.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1685/files/pagamamib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91428743782.pdf
    • https://cdn.shopify.com/s/files/1/0435/7200/2974/files/bemumirir.pdf
    • https://cdn.shopify.com/s/files/1/0455/2966/1605/files/ielts_speaking_marking_scheme.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/95671620157.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/acerola_c_masticable_amway.pdf
    • https://cdn.shopify.com/s/files/1/0437/2971/5354/files/alliteration_and_onomatopoeia_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/4743/5940/files/migikazivenoje.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005910.bin
7bbf5204ec10b494927da7ba121b3ed7bae6ae61ba3da4045be19e6306e45484
pdf-font-stream PDF embedded font (sfnt) at offset 0x5910 4956 bytes
font_01_sfnt_off000069f5.bin
97e5ffe682627487fabae23bbd517fc1be88885121fc66c70b9105379503957c
pdf-font-stream PDF embedded font (sfnt) at offset 0x69F5 9960 bytes
font_02_sfnt_off00008bdd.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BDD 4324 bytes