Malicious PDF — malware analysis report

Static analysis result for SHA-256 b75e2284b4221f3a…

MALICIOUS

PDF

67.3 KB Created: 2020-12-15 15:40:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: bc28718a9d654923b11ff44ce3392518 SHA-1: 4950c43a2cbea577709b479f3719303e20fd19be SHA-256: b75e2284b4221f3ae406ed557e6065db0172a85b93559ecfb5009dd5df5444ce
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The embedded URL 'https://traffnew.ru/123?utm_term=dragon+quest+11+red+doors+locations' suggests a lure to a potentially malicious site. ClamAV detection and ML classification further indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=dragon+quest+11+red+doors+locations PDF link annotation
    • https://rofexigu.weebly.com/uploads/1/3/0/7/130738805/kuzuvolos.pdfIn PDF document text
    • https://zerimesatevig.weebly.com/uploads/1/3/4/8/134879836/vejomolizipo.pdfIn PDF document text
    • https://tozadifoxu.weebly.com/uploads/1/3/4/9/134904498/lozozeruxo_lixenez_nisudubojobi_jibolavoloj.pdfIn PDF document text
    • https://ditoramaw.weebly.com/uploads/1/3/4/7/134724618/waguretepo-mixax-lakimife-kexosozot.pdfIn PDF document text
    • https://lonodoxelu.weebly.com/uploads/1/3/4/3/134305804/2670649.pdfIn PDF document text
    • https://wutawodasigupo.weebly.com/uploads/1/3/4/5/134512212/winagaxe-xugabavasigane-piliwifomagajex.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/wofaxil/52528241841.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/zeradapojoputi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc597938139af0376650267/t/5fcbc6af26a2be7f6ded0582/1607190191733/stickman_rope_hero_apk_oyun_indir_club.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/xejaduge.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc79d879849b27a00a77670/t/5fd67940226e9048fab9f950/1607891265041/fafupikanowojudoxugirom.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/rob_skiba_seed_comic_book.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4bfbf403f5353fdae5828/t/5fc70159a038a451bce27125/1606877529900/vabakidupefiw.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_off0000cbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF2 5284 bytes
SHA-256: c05ae58a35b492994d473002cce5b9b66550f403912e9eb605635ff39ae5db89
font_01_sfnt_off0000ddf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF8 10236 bytes
SHA-256: 602a0678cae10f5f75ccfbbf1723a4f02d923e2d538a1f424181f231eb60f538

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