Malicious PDF — malware analysis report

Static analysis result for SHA-256 d393f2696011b974…

MALICIOUS

PDF

43.0 KB Created: 2020-09-13 06:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be45f4854e01b0be17d2ddc9c5c02a10 SHA-1: b0838f856344aa6df423c0d439042defb07eefe4 SHA-256: d393f2696011b9742160432fe882b43a6c634add9f093f7d83a55d15545c218d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though partially corrupted, contains text fragments like 'Arceuus favor guide' and a URL that matches the redirector heuristic, suggesting a lure. The presence of a link farm further supports the malicious intent of directing users to potentially harmful sites.

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.link/pify?keyword=arceuus+favor+guide
    • http://files.nalinikrishnankutty.com/uploads/1/3/0/8/130874128/mewajuluxojuvafox.pdf
    • http://files.gimnaziapetrich.com/uploads/1/3/1/1/131163691/2368187.pdf
    • http://juwopux.blackboxcosmeticsbeauty.com/uploads/1/3/1/4/131483144/5bce6c1027f4f.pdf
    • http://files.jackshackcabin.com/uploads/1/3/1/3/131384436/51fe34354930.pdf
    • http://files.friendshipcharitiesinc.org/uploads/1/3/2/6/132683147/jilulomikax.pdf
    • https://static.usrfiles.com/ugd/3b6424_30a4b2bf6fe9474da070b6f32f9fc569.pdf
    • https://static.usrfiles.com/ugd/865d50_fe474b1539744ebd95074c5fe7047ae7.pdf
    • https://static.usrfiles.com/ugd/29c71c_6d100fb38c64486bbcd2120aa5820e16.pdf
    • https://static.usrfiles.com/ugd/c268f7_60800a6bcca8402daf00943464d9c0b2.pdf
    • https://static.usrfiles.com/ugd/b41a9a_f7195094da9f4e44ac946ae62cc5c816.pdf
    • https://static.usrfiles.com/ugd/b88e3d_7f41871e092641d99e2d23c85faf0536.pdf
    • https://cdn.shopify.com/s/files/1/0431/0751/6578/files/believer_song_tamil_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0449/9665/7320/files/practical_reliability_engineering_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/mopop.pdf
    • https://cdn.shopify.com/s/files/1/0436/1083/3058/files/video_er_macbook.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_off00006a4b.bin
2e1b266719ea7d92279e9f07183c7ee20f3c8c960b5e53f19da58081499f3928		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4B 5208 bytes
font_01_sfnt_off00007c1b.bin
baf66fcbacc4eef03cee3eb9ab42616869fcc5cd3af720bffc774177be247631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1B 10196 bytes

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