Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d9ae2b01a788b6…

MALICIOUS

PDF

47.7 KB Created: 2020-10-28 03:00:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 1cf5bd0f820d09df1782d5230609745f SHA-1: 94118684fa1c2d71a43d7fd96398667305caebb9 SHA-256: d4d9ae2b01a788b6ab348129acf1ab53c8253d35252262d965bceab4ef4190f6
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=5e+xanathar%2527s+guide+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_5f9149e70290b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_5f8c9b6fe395b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414486/normal_5f95df0b90add.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366958/normal_5f87c3b38b302.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370744/normal_5f89020b51d80.pdfIn PDF document text
    • https://pitamiled.weebly.com/uploads/1/3/4/0/134098016/sejagesefide_jusutemebef_nixajelatetu_peparenikare.pdfIn PDF document text
    • https://furureseseruwa.weebly.com/uploads/1/3/4/4/134481841/julefojarufonikefu.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/f408d59b913.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/5827050.pdfIn PDF document text
    • https://runebipunozup.weebly.com/uploads/1/3/1/4/131406604/misubamikuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006b5f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006b5f.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a39c.bin)
    • https://cdn.shopify.com/s/files/1/0428/4825/6156/files/wekuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/lenovo_300e_chromebook_2nd_gen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8030/9664/files/fillable_forms_on_ipad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/757d1f31-a44c-4f18-abb3-fc16382e5961/sumanasa_vandita_song_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb4269d7-dcbe-4e9c-a9d7-474b7d963f5f/6827137800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd197784-8817-447e-a5bd-09e3320252bb/21193673808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43740f87-2455-41e8-8be0-b75d390c8c6a/saanich_parks_and_recreation_active_living_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ab2b513-170f-4e26-91e6-1138069adda7/51964988156.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_off00006b5f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5F 5176 bytes
SHA-256: 9747ed4f4f659eb0ac175aabf83b158b9588bb558bf3f24cb9b1bd7c7483838a
font_01_sfnt_off00007cee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEE 11340 bytes
SHA-256: c23c6991c5ac26b66da6506b47a5f7a9425dcc3289298601b7993c1b936e940d
font_02_sfnt_off0000a39c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA39C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361