Malicious PDF — malware analysis report

Static analysis result for SHA-256 b684e1044e5eaa61…

MALICIOUS

PDF

49.1 KB Created: 2020-03-31 05:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 7442b6b5d197efba729945fefde36647 SHA-1: 649534ace68ce7e471d6465c08fdcba0f077727e SHA-256: b684e1044e5eaa619b7a58357e7cba8c1f4590bc1b5c6cd4cc4476d0992a93df
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 links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating the document's primary purpose is to drive traffic to a network of external URLs. No scripts were extracted, limiting further analysis of direct payload execution.

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://tenminutetires.com/uploads/1/3/1/3/131383826/131383826.html#el+dorado+john+wayne+full+movie PDF link annotation
    • http://bestlasvegasdogtraining.com/uploads/1/3/0/8/130873779/nonutefumozuna-vonixukufirak-guxef.pdfIn PDF document text
    • http://ravensroostcreations.com/uploads/1/3/0/5/130588579/zoredid.pdfIn PDF document text
    • http://folsombulldogfootball.com/uploads/1/3/0/5/130551129/jozulepatopumun.pdfIn PDF document text
    • http://middleboromakerspace.org/uploads/1/3/0/6/130603731/ximatez-banugusafukizuj-rukufaturanonu.pdfIn PDF document text
    • http://webdisk.tarawattdesign.com/uploads/1/3/0/5/130590380/d4aefb0a162c.pdfIn PDF document text
    • http://sommersetwellness.com/uploads/1/3/0/5/130550768/23f0c240aa2.pdfIn PDF document text
    • http://holisticnursecoaching.com/uploads/1/3/1/3/131380054/jirazopor.pdfIn PDF document text
    • http://gruppodiaz.com/uploads/1/3/0/4/130435684/72807.pdfIn PDF document text
    • http://lamariposalocapr.com/uploads/1/3/0/8/130873915/e70112f86feff0b.pdfIn PDF document text
    • http://wondersmackphotography.com/uploads/1/3/0/2/130272629/119063.pdfIn PDF document text
    • http://misionestea.com/uploads/1/3/0/4/130435985/830098.pdfIn PDF document text
    • http://ingebjrgkrogstad.com/uploads/1/3/0/6/130604079/wevoxo-mupofusi-ritulofipuworu-xawanusuw.pdfIn PDF document text
    • http://lakesareaelectricinc.com/uploads/1/3/0/2/130272586/78db36a.pdfIn PDF document text
    • http://blueoceanconsulting.xyz/uploads/1/3/1/3/131382539/sujej.pdfIn PDF document text
    • http://idetails.org/uploads/1/3/0/6/130620575/defapirefadapusidid.pdfIn PDF document text
    • http://www.mscalvin.com/uploads/1/3/0/8/130874372/bfe1de8d52c.pdfIn PDF document text
    • http://vaservicesltd.com/uploads/1/3/0/7/130739493/dikarezepelogunamol.pdfIn PDF document text
    • http://chambonmaconneriepaysagere.com/uploads/1/3/0/7/130739852/kejaj.pdfIn PDF document text
    • http://lspremierenterprises.com/uploads/1/3/0/8/130873992/9958521.pdfIn PDF document text
    • http://canadianly.com/uploads/1/3/0/3/130379142/8407573.pdfIn PDF document text
    • http://viandasana.com/uploads/1/3/0/7/130776101/bijapulivefedif.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: folsombulldogfootball.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_off00009487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9487 9008 bytes
SHA-256: c297264b33048c81cb021073176a1790201977287f16c5bdedbbc9b712456884

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