Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcb72d7bc5c5d261…

MALICIOUS

PDF

37.0 KB Created: 2020-06-06 15:58:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97d6e2ff1af06a6d7c736710616aa630 SHA-1: 6c066af5287f627d0286c75ab9fadfb79ae9c5b4 SHA-256: dcb72d7bc5c5d26149c7f5908308e6f3c304eb3f53f4f3d5057ff3313a58e1ad
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a mass external PDF link farm, indicating a malicious intent to redirect users. The document body contains obfuscated text and multiple URLs, with the primary ones pointing to suspicious domains. The presence of numerous external links suggests an attempt to manipulate search engine results or distribute further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://kimberlylopezportfolio.com/uploads/1/3/0/6/130621648/130621648.html#six+guns+apk+android+oyun+club+toprak+ko%25C3%25A7
    • http://mail.tullyrosen.com/uploads/1/3/0/6/130620375/6868441.pdf
    • http://stockcos.com/uploads/1/3/0/6/130639811/pakarofet.pdf
    • http://theasadblog.com/uploads/1/3/1/4/131452944/jepidawoku.pdf
    • http://optimizecv.com/uploads/1/3/1/1/131164317/fonaxelim_nipavepuje_zekerujokibo.pdf
    • http://kimberlylopezportfolio.com/uploads/1/3/0/6/130621648/terms.html
    • http://kimberlylopezportfolio.com/uploads/1/3/0/6/130621648/dmca.html
    • http://kimberlylopezportfolio.com/uploads/1/3/0/6/130621648/policy.html
    • http://kimberlylopezportfolio.com/uploads/1/3/0/6/1
    • https://janadutit.files.wordpress.com/2020/06/21962030959.pdf
    • https://fijujafofiv.files.wordpress.com/2020/06/52456787825.pdf
    • https://beburan.files.wordpress.com/2020/06/xatamafulavewezetixuf.pdf
    • https://ropimunor400735744.files.wordpress.com/2020/06/61974372423.pdf
    • https://zodudawizif.files.wordpress.com/2020/06/volozafibatigavazedotet.pdf
    • https://pilinaxaraka.files.wordpress.com/2020/06/dudupizam.pdf
    • https://zarenorazer.files.wordpress.com/2020/06/sifokutevizaxusa.pdf
    • https://vexujarumug.files.wordpress.com/2020/06/lubijoxik.pdf
    • https://zunobulimixe.files.wordpress.com/2020/06/84573468010.pdf
    • https://koxowite.files.wordpress.com/2020/06/rotizijipilolenof.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006151.bin
f81ba5be6cffa7396877030c7781e3c7b4116db4f79961949f1d996aa5aec4a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 11612 bytes

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