Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e02e3953a467ffa…

MALICIOUS

PDF

49.2 KB Created: 2020-10-28 08:01:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 554364deca549f428654b636b2d02e63 SHA-1: b74aaf4f5609cee641a93d779e9cbca576b72266 SHA-256: 0e02e3953a467ffa1fe798ac80e235609856b5440856361faab38a1b7bb356de
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.me/123?keyword=harris+county+gold+card+application+form+spanish In PDF document text
    • https://jijalasigode.weebly.com/uploads/1/3/4/3/134344414/jusazinuxugazim-moxenig.pdfIn PDF document text
    • https://katolafafesol.weebly.com/uploads/1/3/4/4/134479470/dulenemad.pdfIn PDF document text
    • https://wopuremob.weebly.com/uploads/1/3/2/6/132696580/wagumo.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071de.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071de.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a8c2.bin)
    • https://s3.amazonaws.com/pafiganovavi/babysitter_resume.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/norujitagugagasavugo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/cognitive_dissonance_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fce99b5-cd83-47cf-8cc0-58a143e9aa28/baxagukovifizamaroge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9561fbb9-eebb-4c72-a929-acbacfeacd5b/xunewasowuladifaxan.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/detailed_lesson_plan_in_filipino_5.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/83876863104.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/bedifomonilizexi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2313f28a-3a4a-4cc2-a938-d7336e4aa1b8/ravujepasino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b65d3727-a386-4650-867d-3f2ad364d438/76569748469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f08d135f-1c50-4259-885f-bdb20e54dbf3/children_who_chase_lost_voices_english_dub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6149/files/download_game_subway_surfers_mumbai_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8160/3503/files/turbo_max_blue_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/ordonnancement_pilotage_coordination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/mibezididosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/kayla_itsines_vegetarian_guide_download.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 extracted file (font_00_sfnt_off000071de.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DE 5396 bytes
SHA-256: a911f5cb03af2a689666daeb5297bbfc1be8256a7d8fdd8a683750e4eb82ff13
font_01_sfnt_off00008402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8402 10788 bytes
SHA-256: 2f47168e5d11e8fb9b28866fecc72164188aa0d283270187e6eb0d5b8aa486da
font_02_sfnt_off0000a8c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8C2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c