Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8cd43506716514e…

MALICIOUS

PDF

83.5 KB Created: 2020-03-25 08:24:57 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 40c2dd6479747f0f9095a88c3dba9a50 SHA-1: 97eed56dcea1a6662727dc81871a6b527400ba2d SHA-256: a8cd43506716514e6565e9d11ca218af57baa269f9de2bd7f93500cdf19189f5
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating a link farm strategy. The primary heuristic identified a mass external PDF link farm hosted on 'aeiconicday.com'. The embedded URLs point to various domains, suggesting an attempt to distribute traffic or host content across multiple sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://thebeautycave.net/uploads/1/3/0/4/130436137/130436137.html#%D9%88%D8%A7%D8%AA%D8%B3+%D8%A7%D8%A8+%D9%84%D9%84%D9%83%D9%85%D8%A8%D9%8A%D9%88%D8%AA%D8%B1+%D9%88%D9%8A%D9%86%D8%AF%D9%88%D8%B2+7+%D8%A8%D8%AF%D9%88%D9%86+%D9%87%D8%A7%D8%AA%D9%81 PDF link annotation
    • http://aeiconicday.com/uploads/1/3/0/6/130604938/314307.pdfIn PDF document text
    • http://craigsthornton.com/uploads/1/3/0/5/130550971/roxowe.pdfIn PDF document text
    • http://thvpnt.com/uploads/1/3/0/7/130739116/gekofax.pdfIn PDF document text
    • http://mta-sts.mx.drmandiegillette.com/uploads/1/3/0/3/130313495/duxaganotonapow.pdfIn PDF document text
    • http://www.soaringheartsent.com/uploads/1/3/0/5/130541004/zofijexur.pdfIn PDF document text
    • http://danofordings.com/uploads/1/3/0/6/130639268/felaw-pabilasutiza-latagofupad.pdfIn PDF document text
    • http://parisglam.com/uploads/1/3/0/9/130969130/7680475.pdfIn PDF document text
    • http://corretorjclaudioimoveis.com/uploads/1/3/1/0/131069777/tifilak_widepobawave_dozositunam_kaxaz.pdfIn PDF document text
    • http://caketotherescue.net/uploads/1/3/0/2/130289247/piponogalejepin-nakilatip.pdfIn PDF document text
    • http://mail.davisbands.org/uploads/1/3/0/5/130589097/xivufavavejifa.pdfIn PDF document text
    • http://hdtechtalk.com/uploads/1/3/0/6/130639565/3089698.pdfIn PDF document text
    • http://www.hhmedtransport.com/uploads/1/3/0/7/130775404/pofedodaw_ninetuve_pidupedar_jumob.pdfIn PDF document text
    • http://northelkinchurch.org/uploads/1/3/0/7/130739398/2f0f2e594.pdfIn PDF document text
    • http://thebarefootgal.com/uploads/1/3/1/1/131164250/a6120f.pdfIn PDF document text
    • http://stricklandskennels.net/uploads/1/3/0/6/130620839/9545274.pdfIn PDF document text
    • http://broyagebeauregard.com/uploads/1/3/0/6/130621000/xonumupogok.pdfIn PDF document text
    • http://www.teitsson.com/uploads/1/3/0/6/130640025/8996312.pdfIn PDF document text
    • http://iowabirthactivists.org/uploads/1/3/0/3/130379158/tifilo_buvinug_luponaxabuni_sogilud.pdfIn PDF document text
    • http://comonativo.com/uploads/1/3/0/7/130738569/2b7fcc683.pdfIn PDF document text
    • http://nathanraywilkerson.com/uploads/1/3/0/2/130289304/navaf.pdfIn PDF document text
    • http://whiteisleproperties.com/uploads/1/3/0/6/130621116/4620202.pdfIn PDF document text
    • http://www.thelashwear.com/uploads/1/3/0/8/130874326/xanir.pdfIn PDF document text
    • http://www.splendorosa.com/uploads/1/3/0/2/130289540/muxejigera.pdfIn PDF document text
    • http://mail.lcoproductions.net/uploads/1/3/0/4/130489803/sutigasizudexom_jedolumelax_visezefezu_pizikaz.pdfIn PDF document text
    • http://aeiconicday.com/uploads/1/3/0/6/130604938/314307.pdf������In PDF document text
    • http://craigsthornton.com/uploads/1/3/0/5/130550971/roxowe.pdf������In PDF document text
    • http://thvpnt.com/uploads/1/3/0/7/130739116/gekofax.pdf������In PDF document text
    • http://mta-sts.mx.drmandiegillette.com/uploads/1/3/0/3/130313495/duxaganotonapow.pdf������In PDF document text
    • http://www.soaringheartsent.com/uploads/1/3/0/5/130541004/zofijexur.pdf������In PDF document text
    • http://danofordings.com/uploads/1/3/0/6/130639268/felaw-pabilasutiza-latagofupad.pdf������In PDF document text
    • http://parisglam.com/uploads/1/3/0/9/130969130/7680475.pdf������In PDF document text
    • http://corretorjclaudioimoveis.com/uploads/1/3/1/0/131069777/tifilak_widepobawave_dozositunam_kaxaz.pdf������In PDF document text
    • http://caketotherescue.net/uploads/1/3/0/2/130289247/piponogalejepin-nakilatip.pdf������In PDF document text
    • http://mail.davisbands.org/uploads/1/3/0/5/130589097/xivufavavejifa.pdf������In PDF document text
    • http://hdtechtalk.com/uploads/1/3/0/6/130639565/3089698.pdf������In PDF document text
    • http://www.hhmedtransport.com/uploads/1/3/0/7/130775404/pofedodaw_ninetuve_pidupedar_jumob.pdf������In PDF document text
    • http://northelkinchurch.org/uploads/1/3/0/7/130739398/2f0f2e594.pdf������In PDF document text
    • http://thebarefootgal.com/uploads/1/3/1/1/131164250/a6120f.pdf������In PDF document text
    • http://stricklandskennels.net/uploads/1/3/0/6/130620839/9545274.pdf������In PDF document text
    • http://broyagebeauregard.com/uploads/1/3/0/6/130621000/xonumupogok.pdf������In PDF document text
    • http://www.teitsson.com/uploads/1/3/0/6/130640025/8996312.pdf������In PDF document text
    • http://iowabirthactivists.org/uploads/1/3/0/3/130379158/tifilo_buvinug_luponaxabuni_sogilud.pdf������In PDF document text
    • http://comonativo.com/uploads/1/3/0/7/130738569/2b7fcc683.pdf������In PDF document text
    • http://nathanraywilkerson.com/uploads/1/3/0/2/130289304/navaf.pdf������In PDF document text
    • http://whiteisleproperties.com/uploads/1/3/0/6/130621116/4620202.pdf������In PDF document text
    • http://www.thelashwear.com/uploads/1/3/0/8/130874326/xanir.pdf������In PDF document text
    • http://www.splendorosa.com/uploads/1/3/0/2/130289540/muxejigera.pdf������In PDF document text
    • http://mail.lcoproductions.net/uploads/1/3/0/4/130489803/sutigasizudexom_jedolumelax_visezefezu_pizikaz.pdf������In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    +7 more URL(s)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off000104f6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x104F6 31564 bytes
SHA-256: 5f5d34ec37313eb11d5b5d9ff6ba88087973c8dc7bbe41d6a5b65889c54744d5
font_00_sfnt_off0000e89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89B 7196 bytes
SHA-256: 5f8ea048543c511e0b4ccc23f9549e64b2006a8f22d9c253d74c592c9939aa76

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