Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1318282f5ef432…

MALICIOUS

PDF

46.6 KB Created: 2020-08-26 01:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fc6907c11eee7e31f4ecca209e7ffab SHA-1: f04787f2fda8d193a07ce7493a4eb68f8c8c288c SHA-256: fc1318282f5ef432a9e165302f830bdd23b3cddeaab1bb6d3cc2baccae4f257f
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to suspicious domains or redirectors, indicating a link farm or phishing attempt. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.ru/pify?keyword=baptist+hymnal+with+tonic+solfa, which is likely used to redirect users to further malicious content.

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.ru/pify?keyword=baptist+hymnal+with+tonic+solfa
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdf
    • http://files.rcoathletics.com/uploads/1/3/0/7/130775922/vamudaxopoju-xamiwar-pelukixuvapiz.pdf
    • http://riwolevus.marionminotti.org/uploads/1/3/2/6/132680813/be5f8f.pdf
    • http://files.farmandgardencamp.org/uploads/1/3/1/3/131380539/8786160.pdf
    • http://files.heretohealthwellnessclinic.com/uploads/1/3/1/0/131070651/xebenafakub_lelababunuxigu_dizeluvegazu_mamuziwewan.pdf
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/anime_er_app_for_windows.pdf
    • https://cdn.shopify.com/s/files/1/0430/8097/4490/files/witatazefomabukeguz.pdf
    • https://cdn.shopify.com/s/files/1/0440/1987/5998/files/i_ve_been_meaning_to_tell_you.pdf
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/system_dynamics_an_introduction_rowell.pdf
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/rojudogogemimufezatoposok.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/catalog_schneider.pdf
    • https://cdn.shopify.com/s/files/1/0432/2911/8627/files/53921631938.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_off00005d9c.bin
d073115e455fa5e2bbb978f51135a1e459136d9d8c283ce121a81c909f13e21d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9C 5404 bytes
font_01_sfnt_off00006fef.bin
ad4b1368f4fd76fd5f8dc2d43b98481089d29fa3d229ebc08cff9a700da906f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEF 12500 bytes
font_02_sfnt_off000097c9.bin
a2d115f0f97de8ad79ff358ffc77a456361852623a062a0fc59f2585ee3261ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97C9 16316 bytes

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