Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9abca8cf1182ff…

MALICIOUS

PDF

71.9 KB Created: 2021-02-19 02:42:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1c07772c54874267065e7f7eff161784 SHA-1: d6e9a533a4676c056feda7d93137d9ade007aad8 SHA-256: 0d9abca8cf1182ff8f34fffff97192dc8bc14128befd44eb8ddb244657bbe234
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://yafferge.ru/wix?keyword=rotmg+private+server+mpgh In PDF document text
    • http://osthondroz.com/son_lois_lowry_charactersd2zr3.pdfIn PDF document text
    • http://fresh-ita.fun/nezuvipo36gsc.pdfIn PDF document text
    • https://vujebitaj.weebly.com/uploads/1/3/4/7/134759162/c95aae3cd.pdfIn PDF document text
    • https://rizibibaruf.weebly.com/uploads/1/3/5/3/135383358/tuzozos.pdfIn PDF document text
    • https://kotutoxegaru.weebly.com/uploads/1/3/2/6/132695780/zanimuvivexi.pdfIn PDF document text
    • http://characduwe.space/pr_6-3b_weighted_average_cost_method_with_perpetual_inventoryfmpgz.pdfIn PDF document text
    • https://serutoposax.weebly.com/uploads/1/3/5/3/135398922/tavopolomaxavuzaba.pdfIn PDF document text
    • http://ogranicbio.fun/define_cost_sheet7ufaf.pdfIn PDF document text
    • https://jajesawi.weebly.com/uploads/1/3/0/8/130813829/8aa5b5b4608.pdfIn PDF document text
    • https://vinaribibivo.weebly.com/uploads/1/3/1/8/131871854/pebelofukujitisik.pdfIn PDF document text
    • http://datingdate.site/84668425192qpldy.pdfIn PDF document text
    • https://jepukarebav.weebly.com/uploads/1/3/5/3/135321711/9208963.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/luramamelolem/document_pisciculture.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/79923214287.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/basic_accounting_class_11.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/20116244269.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/anarkali_malayalam_movie_songs_123musiq.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_off0000cf5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF5C 4948 bytes
SHA-256: 4ab6f02a6887f732e552f963e904799bfdcadbec9bbec7bce445e2cd644e7bb8
font_01_sfnt_off0000e044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE044 10808 bytes
SHA-256: 5854c6a635b93c7efd6f1c136e985a344b2ed7e6664d68ce82f2fe5efb4665ff
font_02_sfnt_off000104b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B9 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333