Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f2f5f1c55d8f7d…

MALICIOUS

PDF

45.2 KB Created: 2020-10-25 12:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 67d7279543fed911885c23ee59f23a55 SHA-1: fc039553ded1281835d5343f8fd77679ab218b16 SHA-256: 61f2f5f1c55d8f7d1bf21a4c4c31b3a750c399f79bf4737bbf7adfc4c665a79f
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.link/123?keyword=the+free+dictionary+farlex+pro+apk In PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/tixobenudofezibet.pdfIn PDF document text
    • https://fupesovuzej.weebly.com/uploads/1/3/4/0/134016868/sezad.pdfIn PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/siwizus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369917/normal_5f91da12330b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f870ea98c657.pdfIn PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/8644275.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/014ef8188b7c356.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/molavosojabe.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/xekena.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/welemunifajil_muwedalefuj.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006eb4.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006eb4.bin)
    • https://s3.amazonaws.com/wovigebi/karthika_masam_daily_pooja_vidhanam_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/favujezedokisevonagew.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/cloridrato_de_cetamina_bula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffc884a2-86ae-4020-84c7-8b5ceb706ec9/syma_x5c-1_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26832625-e7bb-42c3-a07e-313fdacd2602/vmware_workstation_12_key_crack_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0a39027-70da-4b65-b532-fafc4318f4db/91965282017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81373e10-d181-477f-bff8-5a6271add124/dupoxumurakenuxixalizid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610d9f5a-f20b-4fef-b49a-679c824c76d6/44910568455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/77973024517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/2626/7291/files/pepexibawarim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/ul_prospectus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6122/2307/files/zawajodixupajijimik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5721/files/appsc_group_2_notification_2020.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_off00006eb4.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB4 5248 bytes
SHA-256: 60f654f677cf1fb1726696aec7ab4580c2f47a23e9dcc985dfcffff90f673f5f
font_01_sfnt_off00008089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8089 11484 bytes
SHA-256: ff9e23447a74453107465a54e518b428a5742892087f1920d572db9cfe9552f4