Malicious PDF — malware analysis report

Static analysis result for SHA-256 77925424aedc3f47…

MALICIOUS

PDF

38.4 KB Created: 2020-05-16 17:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: 42ef3a4c7560369a63833dca388ba210 SHA-1: 7e2f17a5bec4160afc62ae8e5d090cbe3efc6f31 SHA-256: 77925424aedc3f4763ef0de61b81ed6565fff3e113f4f06b967f28bb3181fa37
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, contains text related to a 'business manager cv pdf' and includes URLs that are likely intended to redirect the user to malicious content or phishing sites. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://hinterlandtreeservicesbyronbay.com/uploads/1/3/0/5/130588865/130588865.html#business+manager+cv+pdf PDF link annotation
    • http://sterlingbathbodyhome.com/uploads/1/3/1/4/131453682/7399703.pdfIn PDF document text
    • http://mariabraganini.com/uploads/1/3/0/4/130492229/mojimok_dezifapawebelag_sukumulavagoze.pdfIn PDF document text
    • http://akronareaarts.com/uploads/1/3/1/4/131452887/mofoveziwadupi_kumopifidewa.pdfIn PDF document text
    • http://erinfeng.com/uploads/1/3/1/8/131856125/226e6ebc330.pdfIn PDF document text
    • http://minibitedelights.com/uploads/1/3/0/5/130590420/jasokatok.pdfIn PDF document text
    • http://thefundamentallife.com/uploads/1/3/0/5/130589399/zupeliwugig.pdfIn PDF document text
    • http://emilylindin.com/uploads/1/3/0/6/130603725/butasowewu_xevezerelomaki_solul_wilipapefapes.pdfIn PDF document text
    • http://maxusfani.com/uploads/1/3/0/6/130604319/dupivefuzijax-wejomigawij.pdfIn PDF document text
    • http://thecolororacle.com/uploads/1/3/0/5/130542728/89da838266aefd.pdfIn PDF document text
    • http://threadedma.com/uploads/1/3/0/3/130313070/8042996.pdfIn PDF document text
    • http://vaoffroadriders.com/uploads/1/3/1/3/131383977/6031027.pdfIn PDF document text
    • http://getyourfireplacewood.com/uploads/1/3/0/9/130969308/4345312.pdfIn PDF document text
    • http://realestatesolutions360.com/uploads/1/3/0/4/130476083/6076026.pdfIn PDF document text
    • http://myroofingorlando.com/uploads/1/3/1/1/131164248/giwasubakekilo.pdfIn PDF document text
    • http://bambooroomcrafts.net/uploads/1/3/0/7/130738885/fazawaz_janofowidetob_rokigigumedet_bimovegeguwa.pdfIn PDF document text
    • http://undercovernetwork.com/uploads/1/3/0/7/130740242/7864329.pdfIn PDF document text
    • http://aboutofnewyork.com/uploads/1/3/0/9/130969915/vapupakalenipu.pdfIn PDF document text
    • http://simplymagicaljewelry.com/uploads/1/3/0/8/130813787/3932870.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DB 11256 bytes
SHA-256: 1110d3ff3705091a67f470ce954ddd47db968da688a69bdb5b389ca0f1ce484b

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