Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb3e68f7f6fd1262…

MALICIOUS

PDF

39.2 KB Created: 2020-03-30 03:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 827dc7347ba5822be8af5664123267a4 SHA-1: 77e064a3b4264907d961e3f6bb645ec351aa040d SHA-256: fb3e68f7f6fd1262b13e0f5a9ab59366750a1ce2a283ce1952f493511f3429be
96 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links. The document body text and extracted URLs suggest a lure related to a 'book cover' or similar content, directing users to a network of suspicious domains.

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://djsacademy.com/uploads/1/3/1/4/131437246/131437246.html#ps+i+like+you+book+cover PDF link annotation
    • http://foodwithpurposeatl.com/uploads/1/3/0/6/130621730/pusiwegof.pdfIn PDF document text
    • http://ericpatnoudes.com/uploads/1/3/0/3/130379509/tetivumo-toburama-lifaragi.pdfIn PDF document text
    • http://lambwrites.com/uploads/1/3/0/7/130739852/7218710.pdfIn PDF document text
    • http://ksdeerhunts.com/uploads/1/3/0/5/130540567/6297251.pdfIn PDF document text
    • http://primatissues.com/uploads/1/3/0/7/130775144/5012908.pdfIn PDF document text
    • http://jr324muzi.com/uploads/1/3/0/4/130477346/fukunijasokop.pdfIn PDF document text
    • http://chaevolution.com/uploads/1/3/0/7/130739635/tegiroweze_xibikapekar_zelize_viwinozafazagi.pdfIn PDF document text
    • http://mypolishlife.com/uploads/1/3/0/3/130323213/fexakoxedujusaled.pdfIn PDF document text
    • http://rwbsj.net/uploads/1/3/0/7/130775441/zupon-kenoxok.pdfIn PDF document text
    • http://cpanel.scarboroughmaineyoga.com/uploads/1/3/1/4/131454207/bevez.pdfIn PDF document text
    • http://mycupidclothing.com/uploads/1/3/0/5/130539645/4b5e8.pdfIn PDF document text
    • http://victoriacastrovip.com/uploads/1/3/1/0/131070722/8168033.pdfIn PDF document text
    • http://neqconsulting.com/uploads/1/3/1/0/131070044/798a15e33ad.pdfIn PDF document text
    • http://wherefuturebegin.com/uploads/1/3/0/6/130604759/susolemitafex.pdfIn PDF document text
    • http://therealcameragodz.com/uploads/1/3/0/5/130590456/3012436.pdfIn PDF document text
    • http://petroleumconsultingservices.com/uploads/1/3/1/4/131438694/gurowuge.pdfIn PDF document text
    • http://poshbillings.com/uploads/1/3/0/4/130435619/jonogikinoge.pdfIn PDF document text
    • http://mycloudtoken.net/uploads/1/3/0/8/130873860/lifufema_lazid_wujenuru_sebuxokotosom.pdfIn PDF document text
    • http://carports-verandahs.com/uploads/1/3/0/4/130476346/6496f6cda955c.pdfIn 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
🗂 Part of campaign: drakebettis.com 3 samples

Related samples 2

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_off00007138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7138 7704 bytes
SHA-256: 13f9fea46695043ebfbfda86dafc47ebd1997f700b77b512b42edf5eb7e7fa0f

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