Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae38dcbed069dcdc…

MALICIOUS

PDF

59.6 KB Created: 2020-07-31 14:25:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 998280d829d905d649f577b18ac76ffc SHA-1: 41c8afbf45152ce5b72332e638aa7bff3c16fb7e SHA-256: ae38dcbed069dcdc39ad3754f2e637fa31475abce4952ee2e6220adbe660225e
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for phishing or malware distribution. One of the embedded URLs, 'https://ttraff.com/pify?keyword=hunger+games+book+series+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, references 'Hunger games book series pdf', suggesting a lure to entice users to click on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=hunger+games+book+series+pdf
    • http://files.bellehendrik.com/uploads/1/3/1/0/131070452/sunezeme_tazewo.pdf
    • http://files.edgelandersmusic.com/uploads/1/3/0/8/130815026/polekobobutok_japezimosus_bobenaxis.pdf
    • http://files.conscious-connections.co.uk/uploads/1/3/0/7/130739528/13aca1d49b697.pdf
    • http://files.threemendousfilms.com/uploads/1/3/1/3/131383242/tukajaruniwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/metaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6952/8471/files/gofejavelisijusir.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/turob.pdf
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/24238205756.pdf
    • https://cdn.shopify.com/s/files/1/0439/0433/6027/files/79121030086.pdf
    • https://cdn.shopify.com/s/files/1/0437/1585/4490/files/murajakudelujewisiki.pdf
    • https://cdn.shopify.com/s/files/1/0437/5789/5841/files/15620428419.pdf
    • https://cdn.shopify.com/s/files/1/0433/6563/0102/files/gufagunixujusikufati.pdf
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/78498280241.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/rosatisujemokuzuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/midotikonujeriruzopa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/21288165672.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_off0000ace4.bin
49909bfe41e951e3dfa814ec75d1bb5f778bd53e57dcbb7ed6dc9bf94e50d113		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACE4 5296 bytes
font_01_sfnt_off0000beba.bin
e49ebf5cfb06d3d28d73f74fc6ff8e7a0ff9d26d25b6f4dff3e933d094b70eb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEBA 10088 bytes

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