Malicious PDF — malware analysis report

Static analysis result for SHA-256 716e556b75ccdc98…

MALICIOUS

PDF

72.9 KB Created: 2021-02-26 12:25:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0a16f7dd25280664a1a8cea7dace961d SHA-1: 90d4a97513757d770fca25ccdc48bb0cc12f96c2 SHA-256: 716e556b75ccdc9857f97d82c80a2176441f65f3755f08f8c517d567616a3a23
194 Risk Score

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
  • 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.
  • 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://dafemum.ru/wix?keyword=bit+heroes+hack+tool In PDF document text
    • https://cdn.sqhk.co/tibapopedeka/gwVrhdc/best_online_photo_printing_chennai.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/somidapogaberi.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/77122023166.pdfIn PDF document text
    • https://cdn.sqhk.co/rosisole/g4FJjDR/58750859331.pdfIn PDF document text
    • http://tryraisins.club/41587938337pzia4.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/tefufivogojuzij.pdfIn PDF document text
    • http://mon-compte-cmb.best/itunes_64_bit_mi_nhty5i5l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5fe754e46ecbc.pdfIn PDF document text
    • https://cdn.sqhk.co/fabozesemi/UgdOif7/train_sim_world_ps4_review.pdfIn PDF document text
    • https://cdn.sqhk.co/semiwewedazi/Sihgeji/79082050346.pdfIn PDF document text
    • https://cdn.sqhk.co/janezewufaj/jcohdjb/21251509079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392668/normal_601e38c4b76a7.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/beethoven_sonata_op_10_no_1_free_sheet_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482849/normal_5fc9619044320.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/dehbDig/cold_abscess_pathophysiology.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
    • 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_off0000d455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD455 4684 bytes
SHA-256: 0d48f928707f4fbc99fc39850b6fefe63f960185ab74e98d7c300fdb6e15e409
font_01_sfnt_off0000e448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE448 10952 bytes
SHA-256: 79d118e5af15d608a69add18ed8e4f9748251c93d46df18b668a494bcdd929d1
font_02_sfnt_off000108fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108FD 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f