Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a0a0a4c0729e31…

MALICIOUS

PDF

69.9 KB Created: 2021-04-02 00:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 026b11cd467f5a83edfffe0e5277ff20 SHA-1: cbbb56c593b833c85f53828d6578481ed74a4e1b SHA-256: 96a0a0a4c0729e311b0b93b6a0e578d294e211a63c829ad7ede61529bcaac7aa
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 0.9998

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://dafemum.ru/wix?keyword=jvc+remote+control+replacement PDF link annotation
    • https://tunuwadubozowe.weebly.com/uploads/1/3/4/3/134363043/kivipafufa.pdfIn PDF document text
    • https://lelibajoterudu.weebly.com/uploads/1/3/4/0/134042739/43a1c46b5f.pdfIn PDF document text
    • https://gupebuxoguwev.weebly.com/uploads/1/3/4/3/134381402/kajiravobuzet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387046/normal_602883987243c.pdfIn PDF document text
    • http://mobile-media.moscow/how_to_make_a_female_toga_with_fabric2zpsq.pdfIn PDF document text
    • http://gudelew.mywebcommunity.org/cancer_de_piel_por_exposicion_al_sol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471683/normal_601198a307da6.pdfIn PDF document text
    • http://detonic-deutschland.website/active_and_passive_voice_exercises_worksheetssablr.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/cfgdgiD/top_selling_singles_of_the_90s_uk.pdfIn PDF document text
    • https://pabidiwamudobav.weebly.com/uploads/1/3/5/2/135299897/3901765.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/ihBijBz/57677233394.pdfIn PDF document text
    • https://cdn.sqhk.co/nivabetaz/ViaOpdC/fun_things_to_do_in_philadelphia_saturday_night.pdfIn PDF document text
    • http://viteroludobano.mypressonline.com/fiziwegepamukexifazulen.pdfIn PDF document text
    • http://ridaxaki.mywebcommunity.org/pemax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426072/normal_5ffb8749a2b77.pdfIn PDF document text
    • https://xuxixoxeniti.weebly.com/uploads/1/3/4/5/134585484/rezomumesizakota.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427300/normal_6031fb111e3d6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/53102780699.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/telangana_scert_ebooks_free.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/9754683155.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E6 4948 bytes
SHA-256: 92f4a7f527e82c24ae8594550409e34496bed7d4c9ecbe6efbef87ed943edacf
font_01_sfnt_off0000e7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AC 10204 bytes
SHA-256: dd71e77766330a8e9d06e38329d8561fecb3f47175eb65d57ea49eb3a9d864ee

Open this report in the interactive analyzer, or submit your own file for analysis.