Malicious PDF — malware analysis report

Static analysis result for SHA-256 e246b52704635355…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 18:22:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2a74d9815ee7459fef0ba7bbe63a9e4d SHA-1: f853b3c4b87555d46920419a93fd2a38c302453b SHA-256: e246b52704635355e721201357bc82df487186512c88690997b3d9f4112c4939
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=cs+go+map+callouts+workshop In PDF document text
    • https://lobogisotu.weebly.com/uploads/1/3/4/8/134870795/mogasuzubuta.pdfIn PDF document text
    • https://nibapexi.weebly.com/uploads/1/3/0/9/130969889/filatifetis.pdfIn PDF document text
    • https://gadufekovofu.weebly.com/uploads/1/3/4/7/134764592/pelafinemew.pdfIn PDF document text
    • https://gadofipod.weebly.com/uploads/1/3/6/0/136056298/b4f69d26.pdfIn PDF document text
    • https://sabuzirovapun.weebly.com/uploads/1/3/0/8/130813511/f4616fe.pdfIn PDF document text
    • https://tesutubesonazi.weebly.com/uploads/1/3/4/6/134682982/75172b40fafdcb6.pdfIn PDF document text
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/a2b32a3f150bae.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/muwemivumazulax/21425086613.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/vabimolotol.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/anaganaga_o_dheerudu_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/magazine_cover_maker_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/vobalejuponuforupuzus.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/vogonalesetovaxanobigemiw.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/jazelelawifum.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/bgt_former_judges.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/how_to_get_married_in_india_for_foreigners.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/nozeteruzejavosanekolewu.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_off0000dc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0F 5408 bytes
SHA-256: 6fdd04c76c60e7bf08ddd445344286a7b510915a3e6a53b3b161409723e2e444
font_01_sfnt_off0000ee53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE53 10108 bytes
SHA-256: a495abea1b21b339982921310a0cf85508c7a1566871296052f2fdfb3a200f74

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