Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2339b9a124fe76…

MALICIOUS

PDF

44.6 KB Created: 2020-03-26 06:03:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 69b6041feb0e3d5a0dc356ec703144ce SHA-1: b3ae8691e13e38db9a14a2066642c0e089712f81 SHA-256: df2339b9a124fe769a78fb6c648a1612a24cf2392165e03e7d5709ddd927219d
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The ML classifier also strongly indicated maliciousness. The document body, though obfuscated, contains URLs that are likely intended to lead the user to malicious content, potentially for phishing or malware distribution.

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://albemarledwi.com/uploads/1/3/0/8/130874478/130874478.html#lg+tromm+washer+troubleshooting+le+code PDF link annotation
    • http://newmexicohealthyvending.com/uploads/1/3/0/4/130436431/papanakikuw-savofu.pdfIn PDF document text
    • http://dust-in-case.com/uploads/1/3/0/7/130739212/7b75484b2a419.pdfIn PDF document text
    • http://casualshift.com/uploads/1/3/0/7/130776073/9909092.pdfIn PDF document text
    • http://walkerscrossfit.com/uploads/1/3/0/6/130620951/fagusikale_lojuluwofitoku.pdfIn PDF document text
    • http://angeltribecompany.com/uploads/1/3/0/8/130874031/kazilajudo-darojilevuma-xulukowidi-papuxonoja.pdfIn PDF document text
    • http://missionboostconsulting.com/uploads/1/3/0/7/130775435/4408555.pdfIn PDF document text
    • http://www.bigdaddyboomerangs.com/uploads/1/3/0/2/130272485/pedelekipivobut.pdfIn PDF document text
    • http://mantaraypools.com/uploads/1/3/0/6/130639173/1998630.pdfIn PDF document text
    • http://midcoastconsult.com/uploads/1/3/0/7/130776425/siziw.pdfIn PDF document text
    • http://healing-oasis-massage.com/uploads/1/3/0/6/130620975/949111.pdfIn PDF document text
    • http://mta-sts.nature-mind.com/uploads/1/3/0/5/130543840/dulomag_kezejavaga.pdfIn PDF document text
    • http://mta-sts.mail.rescutec.org/uploads/1/3/0/4/130483355/woromugipo-vumipefodijar-pinexovulo-zuzepajoko.pdfIn PDF document text
    • http://pussweek.com/uploads/1/3/0/4/130477040/wepededike.pdfIn PDF document text
    • http://www.alivewithautism.org/uploads/1/3/0/7/130776037/fipopix.pdfIn PDF document text
    • http://mehuelebien.com/uploads/1/3/0/4/130476317/972849.pdfIn PDF document text
    • http://puppyliks.com/uploads/1/3/0/6/130639284/vunoxotaxosiserigel.pdfIn PDF document text
    • http://www.nycaffordablehousing.org/uploads/1/3/0/6/130620173/dilosujulaliluda.pdfIn PDF document text
    • http://danikaandersart.com/uploads/1/3/0/7/130739987/nofapa.pdfIn PDF document text
    • http://archisdesign.net/uploads/1/3/0/5/130539843/3933349.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

Related samples 3

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_off0000849d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 8328 bytes
SHA-256: deb10aef86e51a6bbf8aed5e0cbbcd161913990a6f9a5787485513fd3070db69

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