Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb3c8056b596242…

MALICIOUS

PDF

48.6 KB Created: 2020-09-03 11:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f93f93947136633f0e3ca9f69d5e333 SHA-1: 3011e0644e36665455dc65ee25d23081f2fe88bb SHA-256: 8fb3c8056b5962422906efa7c6527b7cffa3432b2b772102145dfe53655fc4c8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to a URL containing 'android auto clicker'. This suggests a phishing or scam attempt. The PDF also contains a link farm, indicating an attempt to manipulate search engine results or distribute content widely. 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.me/wix?keyword=android+auto+clicker+no+root+2017
    • https://cdn.shopify.com/s/files/1/0430/2703/8369/files/someleligol.pdf
    • https://cdn.shopify.com/s/files/1/0431/5624/2581/files/assamese_film_mission_china_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6016/files/noxomaluzogesituvizu.pdf
    • https://cdn.shopify.com/s/files/1/0465/2957/7118/files/78818337306.pdf
    • https://cdn.shopify.com/s/files/1/0462/7827/9317/files/48967904762.pdf
    • https://static.usrfiles.com/ugd/e00bd3_8fee2887c4134dfa89bc8a5cca2d07bd.pdf
    • https://static.usrfiles.com/ugd/03a576_ea32c1713af144a69b0a9e645c4cdc85.pdf
    • https://static.usrfiles.com/ugd/cc089a_4543dde83f27477394bb28f236871fd2.pdf
    • https://static.usrfiles.com/ugd/b8c837_e96821df49074073aed284cbbc37b7f2.pdf
    • https://static.usrfiles.com/ugd/ec0012_571224d383664f59b90b3f831f930405.pdf
    • https://static.usrfiles.com/ugd/6350c7_8f147f7151394d6486d1e18b1d83bc55.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_off00005bc7.bin
629123bfde0685c5f69bbdd27ec008bde0224d5c30af1dabb990f6ee33ea778e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC7 6440 bytes
font_01_sfnt_off00006bbb.bin
991c381fca6e8f1ed313fe7c79575a1f1f04d4ce84bd84a7ca80dead4891efef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBB 5216 bytes
font_02_sfnt_off00007d8e.bin
0e1600e8472d57bc550eb5d87364b0ae7a2468dc8d4a9004d92f80b60b84078c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8E 10368 bytes
font_03_sfnt_off0000a084.bin
354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA084 16036 bytes

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