Malicious PDF — malware analysis report

Static analysis result for SHA-256 25d12733760c7f6d…

MALICIOUS

PDF

42.2 KB Created: 2020-03-23 10:44:13 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 4f6879746ca49668a3eb40a1568f8e72 SHA-1: 8a8edfc86e0badf50ca7498af9d519bd83da025a SHA-256: 25d12733760c7f6d31deeb27f9a05a15c974fcbf8f4bbb91a11e0728cf114d88
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or a method to distribute malicious content. The primary URL found is http://themastectomystore.com/uploads/1/3/0/6/130604361/130604361.html#bodybuilding+leg+workout+without+weights. No scripts were extracted from this sample, and the document body is heavily obfuscated, limiting further analysis of its direct intent beyond link 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://themastectomystore.com/uploads/1/3/0/6/130604361/130604361.html#bodybuilding+leg+workout+without+weights PDF link annotation
    • http://circushive.com/uploads/1/3/0/2/130273581/e322aa2ec.pdfIn PDF document text
    • http://appeahse.com/uploads/1/3/0/7/130739084/a3ba6667dd.pdfIn PDF document text
    • http://glencoveestates.com/uploads/1/3/0/6/130604147/7273468.pdfIn PDF document text
    • http://myshirabe.com/uploads/1/3/0/4/130436261/momefinozigogo_nitatavelo_ladidugajuponu.pdfIn PDF document text
    • http://firebubbles.net/uploads/1/3/0/7/130776185/vazarizufadiluj.pdfIn PDF document text
    • http://order.arcticbaja.com/uploads/1/3/0/6/130621610/007d3aec2b9f9.pdfIn PDF document text
    • http://www.redcosplay.com/uploads/1/3/0/7/130776253/2b9ce9e.pdfIn PDF document text
    • http://vegasjunkmovers.com/uploads/1/3/0/7/130775651/negol.pdfIn PDF document text
    • http://drabdullahgh.org/uploads/1/3/0/3/130323818/7341fdf80c.pdfIn PDF document text
    • http://nutritionwithnoelle.com/uploads/1/3/0/9/130969477/6765108.pdfIn PDF document text
    • http://www.henysinvestment.com/uploads/1/3/0/6/130604319/danufojeruto.pdfIn PDF document text
    • http://www.megaworldz.com/uploads/1/3/0/2/130274368/buxarowerisel_faganitopivujob.pdfIn PDF document text
    • http://3poulesalile.com/uploads/1/3/0/6/130639413/dujipudugoz.pdfIn PDF document text
    • http://www.banklocal.org/uploads/1/3/0/8/130873781/jozase_ripepuruloxoza_bepiwukewawur.pdfIn PDF document text
    • http://sossanantonio.com/uploads/1/3/0/2/130287839/sonoveduk_wilij_bijalexow_palujerivep.pdfIn PDF document text
    • http://www.fbsaccounting.net/uploads/1/3/0/3/130379111/b2c38cb1386143.pdfIn PDF document text
    • http://chefmetz.com/uploads/1/3/0/6/130621840/nexuboxogevom.pdfIn PDF document text
    • http://rubberglovefullofcandy.com/uploads/1/3/0/6/130604848/daluluxo-disala-kekaxe-pogapepebix.pdfIn PDF document text
    • http://paghosts.com/uploads/1/3/0/5/130544703/satuwil-fanuxolene-tumawudigifused-feguzu.pdfIn PDF document text
    • http://www.caribbean-vending.com/uploads/1/3/0/4/130491594/2541945.pdfIn PDF document text
    • http://www.kine-ingelmunster.com/uploads/1/3/0/5/130539053/jikogodu-xamoki-nejavamulimimev.pdfIn PDF document text
    • http://aalaos.org/uploads/1/3/0/5/130540583/7566fabc31.pdfIn PDF document text
    • http://innovationsbyd.com/uploads/1/3/0/5/130551083/mapororedogonale.pdfIn PDF document text
    • http://chrismcclellandartist.com/uploads/1/3/1/0/131070240/xokifipotuv.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 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_off00007ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD7 7668 bytes
SHA-256: 4445990c68c7b956096d329b4f88b45cf36e93269510f14e2ef5de81239cf912

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