Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d342cca55e8a44…

MALICIOUS

PDF

79.8 KB Created: 2021-03-23 13:23:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 35e39ba7ff30d8950a06bdca33c9fc8b SHA-1: 1612ad007674f53a8e87bd9f72805453379c74bd SHA-256: 07d342cca55e8a449c4ee59d51075e4c514f8d6fac71041dfe4c2fc1fa962c27
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 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.
  • 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://gimoguvi.ru/aws?utm_term=craftsman+1+hp+3+gallon+125+psi+air+compressor PDF link annotation
    • https://cdn.sqhk.co/raserijene/fHsXheY/space_wars_netflix_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/dMThdgi/dr._driving_apk.pdfIn PDF document text
    • https://xisubuto.weebly.com/uploads/1/3/1/3/131380177/9165667d6c8.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/practical_aviation_security_2nd_edition.pdfIn PDF document text
    • https://tewagolefavir.weebly.com/uploads/1/3/0/8/130814187/zuvigofezebek.pdfIn PDF document text
    • https://cdn.sqhk.co/rosivapixove/hngjf9n/pexels_app_online.pdfIn PDF document text
    • https://cdn.sqhk.co/wanoziku/cOa9qhg/6265268430.pdfIn PDF document text
    • https://cdn.sqhk.co/kolusugego/ii1KhiK/24711884703.pdfIn PDF document text
    • https://cdn.sqhk.co/vetukalujir/ejiicih/zoo_and_wild_animals_mod_minecraft_pe.pdfIn PDF document text
    • https://cdn.sqhk.co/lolatonuvesa/cjggehh/dark_horse_resources_annual_report.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/iebjghg/ates_ve_su_6_oyna.pdfIn PDF document text
    • https://cdn.sqhk.co/fitodofafe/ejhj5hg/31818041448.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/lupuvogotog/befelididorotosegotawoz.pdfIn PDF document text
    • http://vowojuxibaxo.myartsonline.com/xekejakolovemetagit.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/wusivekefinufeti.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/74031925774.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/gedelo.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/vibuzomozo.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_off0000f5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FE 5804 bytes
SHA-256: 3fe872517f1eecc3d233bdda7cc99c50b04ee552da47b25fe90809611a1ac05d
font_01_sfnt_off000109ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109AB 11884 bytes
SHA-256: 064d08dda2bde975c83f4f35b361dd1bb15f9b2671a199be18d7465a4b637a18

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