Malicious PDF — malware analysis report

Static analysis result for SHA-256 a699596fc9716d11…

MALICIOUS

PDF

76.7 KB Created: 2021-03-19 11:21:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: abeaaca110541af245bf7c1ed3b141b6 SHA-1: 45cd95ab76da887df44b114fe6c81484f825b5dd SHA-256: a699596fc9716d11518a43ba8c564fff05d7b1949af32e35ec952cfc60639a25
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 0.9991

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://baarspo.ru/award?keyword=pathway+blighted+ovum+pdf PDF link annotation
    • http://spindlndou.space/quiero_aprender_ingles_rapido_y_gratisf8c7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407060/normal_5fdd288b8283f.pdfIn PDF document text
    • http://a1metromovers.com/boater_exam_chapter_6_answersrl05z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475570/normal_603a6f7951e4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374700/normal_600e00c59a62e.pdfIn PDF document text
    • https://luxaxila.weebly.com/uploads/1/3/0/8/130814132/belemixidafixon-loxuruwegulabad-movumo-gizanofawisusi.pdfIn PDF document text
    • http://iglivesupportteam.com/670072619200o1hk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379856/normal_5fe15e31e68ef.pdfIn PDF document text
    • http://itchia.space/template_blogspot_mobile_friendly71fli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454420/normal_602b6ab47c019.pdfIn PDF document text
    • http://cyberlife.store/uncle_marcos_from_the_house_of_the_spirits_by_isabel_allendeo1zln.pdfIn PDF document text
    • http://gallery-shop.site/generac_3100_psi_pressure_washer_manualkp10d.pdfIn PDF document text
    • http://allerlo.xyz/23075927838k1u79.pdfIn PDF document text
    • https://zejikato.weebly.com/uploads/1/3/3/9/133997407/2411e4c4.pdfIn PDF document text
    • https://bekajujoxofutit.weebly.com/uploads/1/3/1/4/131406668/8684217.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/vidadaviwal/98901842502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1148862f-8113-42b3-8daa-743ccbd6ae6b/maronunusitaranixurisa.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/cigarettes_after_sex_new_album.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/john_deere_x300_48_mower_deck_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a2331be-05ee-4bfd-98dc-e9edbcc8057c/ge_water_softener_vs_fleck.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59a52778-112d-43e1-a0a7-dbfb76fcbb78/570948698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba8b4721-f5f2-4fd5-aa3f-6f0bf9b68a27/viporesuminabixazet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bdeca2d-98dd-4c42-8f5b-64b90607b416/kaxebuwemabijoguj.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/lefewirisibekadirij.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/school_uniforms_stores_manhattan.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_off0000ec9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9D 5576 bytes
SHA-256: 692b295f4e3b23148fa8849bf23372a200fba6f9f77a9d05d2756f2826daec79
font_01_sfnt_off0000ff92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF92 11156 bytes
SHA-256: 32310458cb0e92af833dc38c37f351f4b40202adc4132436c37c2dd50ef174ee

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