Malicious PDF — malware analysis report

Static analysis result for SHA-256 010f773a4fd61ece…

MALICIOUS

PDF

40.3 KB Created: 2020-03-21 02:00:44 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 96202acb5306fbcbbbe289d9a7265e47 SHA-1: bceb5e8863cc5e7007ea75f246d20592569a380f SHA-256: 010f773a4fd61ece9b75e1dafc53ee43f6eb1ce0a2b1ad239dc241d69ebb6948
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary external URI points to 'eat-lunch.com', and many other URLs are present, all pointing to PDF files on various domains. This suggests the document is designed to redirect users to other potentially malicious content or to manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://eat-lunch.com/uploads/1/3/0/5/130543364/130543364.html#que+es+el+notch+de+un+telefono
    • http://vrealdesign.com/uploads/1/3/0/6/130620689/4336388442507.pdf
    • http://dadsmoviereviews.com/uploads/1/3/0/2/130287882/vofasuvuw.pdf
    • http://cattaleya-moda-adolescente.com/uploads/1/3/0/6/130621031/d680ebd740d4ab.pdf
    • http://o9hqy.bpmtc.com/uploads/1/3/0/2/130274146/4799577.pdf
    • http://nohelmetlaw.org/uploads/1/3/0/5/130543656/9079825.pdf
    • http://www.sp00kqd.com/uploads/1/3/0/8/130813784/vemuwekedalunuse.pdf
    • http://amgidaho.org/uploads/1/3/0/5/130589393/sorevur-tukegagugel-tenimiwir.pdf
    • http://kristenbluehost.com/uploads/1/3/0/2/130287976/zemosotivula-vuzezawumezobe-xoniwadobe-nusobujafufuwa.pdf
    • http://moviestvsports.com/uploads/1/3/0/5/130588650/932dac6ea1.pdf
    • http://southern-edge-knife-works-llc.mynewonline.store/uploads/1/3/0/3/130313086/4823811.pdf
    • http://specialtyhealthpartners.com/uploads/1/3/0/4/130435650/bajava-savabat-xofuxetimej.pdf
    • http://nicholebertucci.com/uploads/1/3/0/5/130590511/vafolemesifuwesazur.pdf
    • http://tradingblockpro.com/uploads/1/3/0/2/130270746/563583.pdf
    • http://duloxetine.net/uploads/1/3/0/6/130604690/mutiluxixuf.pdf
    • http://princessrings.net/uploads/1/3/0/6/130604602/tereresisora.pdf
    • http://mta-sts.mail.gleitsmann-holz.de/uploads/1/3/0/3/130379228/a961fd.pdf
    • http://leandreamers.com/uploads/1/3/0/3/130313445/merewov-mubovunerige-mixuzoguludix.pdf
    • http://baobabholistics.com/uploads/1/3/0/6/130622022/5d190.pdf
    • http://www.ering.net/uploads/1/3/0/2/130272330/sinakuravul_reremodarobo_zijuba.pdf
    • http://simplinow.tech/uploads/1/3/0/5/130543289/3887182.pdf
    • http://guitar-hub.com/uploads/1/3/0/7/130738554/jadadi.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_off0000733c.bin
60a356544bd5c4c891430a3067988e53d67dc317763c09e38a2bb276ed19ebbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x733C 8312 bytes