Malicious PDF — malware analysis report

Static analysis result for SHA-256 5794bafed1e77ee6…

MALICIOUS

PDF

81.9 KB Created: 2020-12-29 17:19:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b4b5d5b4e2e4175ee78593481cf6843 SHA-1: 1f5b3e1658abb6ae08fa3ff357a56c7412afc1af SHA-256: 5794bafed1e77ee600a64dda2b24175c632b39fe77daf39a71f83b9f2c224281
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristic firings reveal it contains a large number of external links, suggesting it's part of a link farm or phishing campaign. The embedded URLs point to various external resources, some of which are PDFs hosted on cloud storage, likely intended to host further malicious content or redirect users to phishing sites.

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://trafftec.ru/123?utm_term=the+empowered+wife+audible PDF link annotation
    • https://xalesuben.weebly.com/uploads/1/3/4/3/134368019/xuzovokufit-mipaneben-pexitonivi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414167/normal_5fcf44557e4fc.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/tgjOjei/patoxabogokojilo.pdfIn PDF document text
    • https://cdn.sqhk.co/peferitukofa/jeY7dE5/56027743926.pdfIn PDF document text
    • https://cdn.sqhk.co/vopufepivipe/iFrghih/wordans_reviews_australia.pdfIn PDF document text
    • https://gugedawojovo.weebly.com/uploads/1/3/4/5/134590720/2876c1f38600.pdfIn PDF document text
    • https://cdn.sqhk.co/vopufepivipe/KaEiigh/mob_texture_pack_1._15._2.pdfIn PDF document text
    • https://nidiladidubupa.weebly.com/uploads/1/3/4/7/134753920/4f8c302c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404980/normal_5fe197f822ae2.pdfIn PDF document text
    • https://gokipeko.weebly.com/uploads/1/3/4/3/134351508/b3a39ede28c4a1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/votawawo/50260724916.pdfIn PDF document text
    • https://s3.amazonaws.com/jevuxozazebazug/casio_ctk_720_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/adaptational_theory_crisis_intervention.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/report_on_flood_situation_in_mumbai.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/work_experience_certificate_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/39637810603.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/85894832634.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f76d.bin
0e6226d38aa4e39d1535c00c0765d758b5145c5cd9f45111c64ec87b05e3a75a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF76D 4980 bytes
font_01_sfnt_off0001085b.bin
370aaaf424f04c99ac8ad13957d49913b14e9feddcc2580edd90a79e2eca821f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1085B 10516 bytes
font_02_sfnt_off00012c60.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C60 4324 bytes

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