Malicious PDF — malware analysis report

Static analysis result for SHA-256 332c743ff3644b7f…

MALICIOUS

PDF

64.1 KB Created: 2021-01-03 15:46:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5d52597f9ae280428826ad59e76686c4 SHA-1: 9d1f9623d5081593c4777ccde8cebcd67b7c3297 SHA-256: 332c743ff3644b7fc1075a94df22c0ab2d431093d34746efb4d2dcccf15972b6
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 detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting a link farm or redirection mechanism. The embedded URL 'https://trafffi.ru/123?utm_term=yummy+house+menu+ocala' is the primary indicator of a potential phishing or malware distribution attempt, disguised as a menu.

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://trafffi.ru/123?utm_term=yummy+house+menu+ocala PDF link annotation
    • https://suzipokenefuju.weebly.com/uploads/1/3/3/9/133997801/5475680.pdfIn PDF document text
    • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/fipavo.pdfIn PDF document text
    • https://cdn.sqhk.co/bivadudit/jbcPgjz/49208712313.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417645/normal_5fbaaec508c90.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/mojuvalekunewaj-jurukufab-figisexo-jogunakadiw.pdfIn PDF document text
    • https://dakikizubebara.weebly.com/uploads/1/3/4/8/134889455/648781.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371508/normal_5fe28ffe2bca6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406473/normal_5fcfedd4e5d44.pdfIn PDF document text
    • https://fidojosamesevuf.weebly.com/uploads/1/3/4/5/134594598/dubolumutefofig_jisorokirodub_rujiz.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/wazorixekunafob/diversity_3_boss_battle_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/33332711968.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/50162863494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0413761b-4e43-4e9c-ab92-35c3d292367e/transformers_robots_in_disguise_mega_optimus_prime_toy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/946a1d18-3165-4726-ac0a-a1734cd5c8e8/mr_wilson_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/vubefudafexo.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_off0000bfd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD0 5004 bytes
SHA-256: 6c2cb13b8579d758ac832341e3d0770b60250d73091db1d4f26a6df732994e6b
font_01_sfnt_off0000d0ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BA 10176 bytes
SHA-256: 9d0ed8b4f4ea3801bd21f5ce7e1b643fb954c0537b4c152cf7de795239cb7542

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