Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fcc76ae1399e79a…

MALICIOUS

PDF

67.2 KB Created: 2021-02-13 17:19:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8378d97cc2b70b10e96ec6a2432a7158 SHA-1: e4040c5a9e6424992633829b6921f06de5669672 SHA-256: 1fcc76ae1399e79aa07d6400257de4bd04a73ecfcd3164e0d79d3a46a629a77f
196 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
  • 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.
  • 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://druttle.ru/aws?utm_term=anaglyph+full+movie PDF link annotation
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/a76439e5db9594e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412767/normal_600a4df32c7c4.pdfIn PDF document text
    • https://tuxibefogeja.weebly.com/uploads/1/3/4/3/134359070/a1316a3e8dfc0bf.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/cgeYngd/worship_and_praise_songs_lyrics.pdfIn PDF document text
    • http://italia-doc.space/sanujirujopufijapupuzifugg5q.pdfIn PDF document text
    • http://lg-copyrightforms.com/world_camera_live_apkwhtck.pdfIn PDF document text
    • http://bellissimo.online/flix_movie_theatre_el_pasogd2qm.pdfIn PDF document text
    • https://furimubabo.weebly.com/uploads/1/3/1/8/131856330/6a153de.pdfIn PDF document text
    • https://tonuwuro.weebly.com/uploads/1/3/0/7/130739505/c6669e7bd1d.pdfIn PDF document text
    • https://fevebelok.weebly.com/uploads/1/3/4/0/134012800/9adf412cc.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/zakunafu/printable_frozen_invitations_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/73439708530.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/3ds_max_vray_exterior_models_free.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/64542718192.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/83110728494.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_off0000c95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95E 5192 bytes
SHA-256: 84b520e0a70160113b4c0ecb71dec9daab36d6d9a1b8913c06bdd3b5f21c458c
font_01_sfnt_off0000db00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB00 10980 bytes
SHA-256: 578e1e58f3c42bd806fa931444daa20dd13fe32aef740b387b98f2af13f44d17