Malicious PDF — malware analysis report

Static analysis result for SHA-256 adacec2366408609…

MALICIOUS

PDF

70.2 KB Created: 2021-05-17 21:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: feb8fb7e45a61a1bb11507d14da6a2e2 SHA-1: 2aeb2f3ffacd187302ebaa8fb8544c46c7d4d7f2 SHA-256: adacec2366408609338eef5c469f1549b6e96bc5e3cdcae916b17d78fa1c226f
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 0.9997

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://jumiwimov.ru/strik?utm_term=descendentes+3+filme+completo+dublado+parte+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426830/normal_604000927e3f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_60140255760dd.pdfIn PDF document text
    • https://patobusogeziwe.weebly.com/uploads/1/3/4/0/134096506/3678181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369304/normal_5fd85a2310b2e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503578/normal_5ff7d22281ca0.pdfIn PDF document text
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/tedad_gotidobovinak_lerupevasufolut_pevexuvav.pdfIn PDF document text
    • https://nixunirebexif.weebly.com/uploads/1/3/0/7/130776125/68141fcf7ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388274/normal_603e5e7473afb.pdfIn PDF document text
    • https://sawotulexude.weebly.com/uploads/1/3/5/2/135298589/dewebituj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383300/normal_5fd903073695a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499629/normal_5fcc1624a4a10.pdfIn PDF document text
    • https://xiluruzubu.weebly.com/uploads/1/3/0/8/130813732/fimepep-wafalosamiruram-judakejemas-nated.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480585/normal_604ee910bb694.pdfIn PDF document text
    • https://miwunogix.weebly.com/uploads/1/3/2/8/132814940/9892716.pdfIn PDF document text
    • https://ragurukenawuxif.weebly.com/uploads/1/3/4/6/134667210/kuzipexol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489732/normal_6024fe8c70e3b.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/5ea619ba-7b27-465f-bcb0-c4b06e229020/how_do_i_cancel_a_rodan_and_fields_order.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1367565f-259d-4c74-b834-8659470ce40e/nortel_m3904_phone_mpn_ntmn34ga70.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a94a03e4-f782-4d6c-84ed-cae1dd269600/fomuzux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de5697e5-6453-49f0-b804-56ceef5ebd49/45367028468.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_off0000cff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFF7 5656 bytes
SHA-256: c0afb2afcb92630199f875890d5dbaf34e20058e2fd5f98532db9d12720ddbc4
font_01_sfnt_off0000e321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE321 12820 bytes
SHA-256: f6368d9f5e983aba11d806db3fe2f13a798ff59e3c3872edd5e1bb3ef5d31755

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