Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a10d060529986e9…

MALICIOUS

PDF

68.0 KB Created: 2021-02-16 19:53:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c536b22bdf2a775cadb6f35c815acf29 SHA-1: 86fea2f0220735fd7d0c8a1a2b1331d96f3c8f2b SHA-256: 6a10d060529986e94af388ece8590c9a3faa3ea8632de8b1fc497dbef4dad829
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/wix?keyword=beverage+air+bm23+service+manual PDF link annotation
    • https://gilaxisob.weebly.com/uploads/1/3/1/4/131406303/gawak.pdfIn PDF document text
    • http://espaceabonne.com/bandeyaa_song_freedovrr.pdfIn PDF document text
    • http://dejevixumuvele.22web.org/36600512608.pdfIn PDF document text
    • https://bufudelazevel.weebly.com/uploads/1/3/4/7/134734798/gulelexupitaki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463034/normal_5fd962a1a4b03.pdfIn PDF document text
    • https://sinekamawo.weebly.com/uploads/1/3/0/7/130776883/gawobuxopi-gajixufofoz-siwolowexex-nojinemanitexi.pdfIn PDF document text
    • http://rezltml.xyz/all_types_of_big_sharks_listd4bb9.pdfIn PDF document text
    • https://xipakopubax.weebly.com/uploads/1/3/5/9/135966228/1c14e34e891a.pdfIn PDF document text
    • https://dugezuwodovapa.weebly.com/uploads/1/3/0/8/130874298/jipuxirofo-finarusuzow-kizefuf-beviweviwavi.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/midipes/unstable_angina_guidelines.pdfIn PDF document text
    • http://rixuweba.rf.gd/nokia_best_tool_crack_v3._07.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/80329883432.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/pugevopoguf.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/age_hardening.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_off0000cc6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6D 5664 bytes
SHA-256: 2a4c2bcf21323b0628effc0867dbd3439684223ea3db4c6be0bb4cebd1b834e0
font_01_sfnt_off0000dfa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA4 10504 bytes
SHA-256: 67e9ce02f0432b8f9781e3050026d769a021d6de3cc178012bf5c022e0e81ddf