Malicious PDF — malware analysis report

Static analysis result for SHA-256 930e388a8761c28a…

MALICIOUS

PDF

81.4 KB Created: 2021-03-23 00:59:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6068344c552b83da92a4434ec363487a SHA-1: 9205ade71fdbdec8874d8d6c5dfcbfb029ef7b5e SHA-256: 930e388a8761c28a1b9daf1f6a74784ea961fb59849a17d6908e7fa5052b6699
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://pelibifir.ru/award?keyword=aprender+a+tocar+guitarra+pdf PDF link annotation
    • http://love-your-lips.online/46718871654zkv88.pdfIn PDF document text
    • http://vifezitenof.getenjoyment.net/93238226625.pdfIn PDF document text
    • https://nevomunetis.weebly.com/uploads/1/3/0/7/130740414/fewuf.pdfIn PDF document text
    • https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/xufovavopeboxo_rixitijolafamas_vudanot_dupamilemeza.pdfIn PDF document text
    • http://kiparegazeratax.getenjoyment.net/kerapenej.pdfIn PDF document text
    • https://mazakodavowur.weebly.com/uploads/1/3/4/3/134335882/3353c58293f2a4a.pdfIn PDF document text
    • http://opendouche.xyz/82249432591mlr2r.pdfIn PDF document text
    • http://neridofufuleteg.scienceontheweb.net/38811261254.pdfIn PDF document text
    • https://vapurexox.weebly.com/uploads/1/3/4/8/134865026/3be6ab7e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469634/normal_5ff71860214e6.pdfIn PDF document text
    • http://lomuwugevona.getenjoyment.net/50328073985.pdfIn PDF document text
    • http://rivafigikiwax.medianewsonline.com/union_budget_meaning.pdfIn PDF document text
    • https://risuwawew.weebly.com/uploads/1/3/4/4/134403416/4f05ea3a62b.pdfIn PDF document text
    • http://service-hire.com/philips_tv_appstbsfo.pdfIn PDF document text
    • http://mon-cmbretagne.com/65214058063r3odh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471464/normal_6025898f0d616.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_602880951d5bf.pdfIn PDF document text
    • http://eurofamily.pro/65685636986d6sim.pdfIn PDF document text
    • http://kesisofawa.mygamesonline.org/sowiguvu.pdfIn PDF document text
    • http://lighterusb24.site/posazovarufojusinadisufedtlpl.pdfIn PDF document text
    • http://wafixevewitope.mypressonline.com/cannibals_and_kings_origins_of_cultures.pdfIn PDF document text
    • http://itslm.fun/zexigosaxusiterivkj7x9.pdfIn PDF document text
    • http://cryogen.me/beauty_and_a_beat_mp4_songeyro4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476758/normal_60326c4c1c903.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://damowepoko.myartsonline.com/9687287023.pdfIn PDF document text
    • http://nibopinalilabaj.onlinewebshop.net/what_does_tenth_mean_sentence_imposed.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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
font_00_sfnt_off0000fd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6E 5100 bytes
SHA-256: 9978585fe37b37c80c097181871e164a576b4fb6a93b648956278492a5e0dec9
font_01_sfnt_off00010edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDF 11960 bytes
SHA-256: 5449edbd55e776d20b547f1a0f9d9b41b46b9a1ab010e6175c71cd0971bdeda2

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