Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c3474a2327cc737…

MALICIOUS

PDF

41.0 KB Created: 2020-03-15 13:32:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 4b2b506cb47a4134e92074008bdc94c4 SHA-1: f73fc8a70fa8c4e1e5c57cecf70bcd7d768335c0 SHA-256: 9c3474a2327cc7370c133b28b4cc0092b223117f518aba9bb9adb84deac2c824
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous external links, identified as a PDF_SEO_LINK_FARM heuristic, suggesting a link-building or spamming operation. The document body, though partially corrupted, contains text related to 'website templates psd free 2017' and the PDF's creation metadata, which aligns with the lure of providing free resources. The presence of external actions and parser-evasion structures indicates a deliberate attempt to obscure the malicious intent.

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://adsl-63-204-18-9.benefitplans.org/uploads/1/3/0/9/130968913/130968913.html#website+templates+psd+free++2017 PDF link annotation
    • http://trophypointcontracting.com/uploads/1/3/0/4/130435774/zopolipaxizaxet_kojep_mizupo.pdfIn PDF document text
    • http://birthandbabiesoahu.com/uploads/1/3/0/2/130288381/d654fd04a63c4.pdfIn PDF document text
    • http://cancelatimesharenow.com/uploads/1/3/0/6/130639257/8cc9fac2.pdfIn PDF document text
    • http://bonzengacollection.com/uploads/1/3/0/4/130489144/4988274.pdfIn PDF document text
    • http://teamantoinette.org/uploads/1/3/0/2/130272905/wutixowim.pdfIn PDF document text
    • http://jamieowenactor.co.uk/uploads/1/3/0/5/130551366/tejemuditeduwa.pdfIn PDF document text
    • http://nybestdentist.net/uploads/1/3/0/5/130588708/4867811.pdfIn PDF document text
    • http://daniellesmakeupcreations.com/uploads/1/3/0/6/130639656/274016.pdfIn PDF document text
    • http://www.pomawanian.com/uploads/1/3/0/4/130488565/lejiwi_rexima.pdfIn PDF document text
    • http://educatedway.net/uploads/1/3/0/7/130738821/60cd407c3a14.pdfIn PDF document text
    • http://alchemystejuice.com/uploads/1/3/0/4/130477048/4173608.pdfIn PDF document text
    • http://techstyles.shop/uploads/1/3/0/6/130620399/7613336.pdfIn PDF document text
    • http://ruthwildwood.com/uploads/1/3/0/3/130313748/popimalexote.pdfIn PDF document text
    • http://nextgenproperties.net/uploads/1/3/0/3/130313194/zuvuzafap_zezavebudifal_zobetena.pdfIn PDF document text
    • http://crystalreflectionsphotography.com/uploads/1/3/0/6/130621411/38e800.pdfIn PDF document text
    • http://semboards.com/uploads/1/3/0/7/130738892/fd375a5856.pdfIn PDF document text
    • http://senhordasaulas.com/uploads/1/3/0/4/130490609/abebee326f1182d.pdfIn PDF document text
    • http://wino.club/uploads/1/3/0/6/130621475/5c429.pdfIn PDF document text
    • http://www.msgarcia.com/uploads/1/3/0/5/130590689/24661bf9.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_off00007825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7825 7940 bytes
SHA-256: 19725119f5d2a2bfdb2ac7ff428316ad406f393d3f016b3a17ba07efdff37036

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