Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fca7d6745ca3689…

MALICIOUS

PDF

66.6 KB Created: 2021-04-02 19:23:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d43edc437358c2e50195bba4b3c53e23 SHA-1: d8bddc7f84edbc36f193f6fa7a2b39718645aa3f SHA-256: 5fca7d6745ca3689a05d78dcf3c0e2999c33bbac9137cf6415a5045d49a87b5b
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.9473

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 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.
  • 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
  • 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://soxebez.ru/aws?utm_term=crafting+and+executing+strategy+16th+edition+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/bamewimoxatu/geNhigj/18162679206.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/vittoria_mio_core_giacomo_carissimi.pdfIn PDF document text
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/kukureveve_lakugegobira_rilivuzolofunet_tixonavuk.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/ieicvcS/77268714127.pdfIn PDF document text
    • https://cdn.sqhk.co/lisupixiwe/jaeib3R/52893063267.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/jbhgMge/ixl_login_with_clever.pdfIn PDF document text
    • https://sorafenime.weebly.com/uploads/1/3/4/3/134320910/ninotivetukux_sojofit_rotaxivafom_gozinababo.pdfIn PDF document text
    • https://nurowilalivep.weebly.com/uploads/1/3/1/3/131380447/zemaxufoje-jirikulakude-karapubule-pezobozog.pdfIn PDF document text
    • https://rezipubifikupix.weebly.com/uploads/1/3/4/5/134511366/8996819.pdfIn PDF document text
    • https://cdn.sqhk.co/boxadiweteve/G8rB8hi/pacsun_mens_size_guide.pdfIn PDF document text
    • http://tiwimifozukimu.medianewsonline.com/was_david_a_king.pdfIn PDF document text
    • https://josaboduzez.weebly.com/uploads/1/3/1/6/131637311/lemowizig.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/OhgKMhh/instagram_photo_downloader_app.pdfIn PDF document text
    • https://cdn.sqhk.co/leloxoreje/gQ3ifxc/20713277985.pdfIn PDF document text
    • https://cdn.sqhk.co/mumesimasozo/aJrih0I/wodogebofimagefisereme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cff00a0d-c0cd-47f3-a591-10ebc7582259/gagudawabumoru.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/66827884596.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dff79843-2276-4b11-b6d8-c470e999dc50/xivujox.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/faasoft_video_converter_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/lowrance_elite_5_hdi_setup.pdfIn PDF document text
    • http://fuwutowamig.myartsonline.com/70474834498.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/division_of_decimals_with_models_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/418cac30-f530-4fe8-9148-ddad55ff4ec0/97522536519.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/sulinegukaferugosa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad947260-a808-4006-b783-c783407acf0f/libro_salon_de_belleza_mario_bellatin.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5B 5792 bytes
SHA-256: 8bfee08456fd9a8b273a275e2c1de9eb46d237c0c39592d2d4c927178dc41a20

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