Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f21cb38a88ca74…

MALICIOUS

PDF

48.3 KB Created: 2020-08-26 09:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b711a90f2f740022b1aab9f222db8a20 SHA-1: fad87e5cab8c2b377a3616c3a19716eec0a4bb8c SHA-256: c3f21cb38a88ca74797bcc79d44ca06af087c582074535dfa55108dba5b7d7d3
150 Risk Score

Malware Insights

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

The PDF contains a link to a redirector hosted on 'ttraff.com' which is flagged as malicious. The document body and embedded links suggest a lure to access a movie, likely a phishing or malware distribution attempt. The PDF also contains a large number of links to other PDFs, indicating a link farm for SEO manipulation, potentially to obscure the malicious redirector. No scripts were extracted from this sample.

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=fifty+shades+freed+full+movie+online+free+vimeo
    • http://wofezexu.classicaltocontemporary.com/uploads/1/3/1/6/131606617/jerotar.pdf
    • http://vupij.brettwalker.solutions/uploads/1/3/2/8/132814930/vimada-gikifoku-bosaxon-zifer.pdf
    • http://legag.harvestlifemissions.org/uploads/1/3/2/6/132682076/wojujexixif.pdf
    • http://junebeta.ofrenchpolishing.com/uploads/1/3/0/8/130813059/4505000.pdf
    • http://rigopedef.mcmillansofmalton.co.uk/uploads/1/3/1/4/131453005/rekugide_guwenir_sejenuvifijukij.pdf
    • https://kanopie.xyz/movie/337167/fifty-shades-freed.htmlWatch
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/bazurevevemu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/72133049932.pdf
    • https://cdn.shopify.com/s/files/1/0437/5658/5111/files/5e_races_list.pdf
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/tijunodijesatikavuxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/43784277346.pdf
    • https://cdn.shopify.com/s/files/1/0448/9442/1147/files/a_practical_english_grammar_exercises_1.pdf
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/42838683990.pdf
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/buteyko_breathing_technique_for_asthma.pdf
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/just_already_yet_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0432/6146/0644/files/67556304457.pdf
    • https://cdn.shopify.com/s/files/1/0439/7416/4638/files/alexitimia_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/graphical_user_interface_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/5976381548.pdf
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/cod_black_ops_3_secret_achievements.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_off000073e9.bin
2bda89f7e6757e24253e9acf5f03cd9923c15c32e2d45809256958067b9e53f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E9 5264 bytes
font_01_sfnt_off000085b3.bin
e0770b72447bee5174c8991c75bf8663badc62c1f96bd41f913fce08dd24aa34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B3 2240 bytes
font_02_sfnt_off00008fcd.bin
cee7ad4707fdd38746c553482521ba1f0f341a5c4db78e44b8347cc223097afa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCD 10252 bytes

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