Malicious PDF — malware analysis report

Static analysis result for SHA-256 15774fbdfcf61626…

MALICIOUS

PDF

87.9 KB Created: 2021-03-05 13:37:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: f391615af7738f9840d3c1756a2a3292 SHA-1: b694974d84a18b2b0b6026de9e9103a94f0cd74f SHA-256: 15774fbdfcf61626e146e1d9e86ee754981ed71e97cb6a50523867cc0d8108ea
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many pointing to disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.
  • 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.
  • 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://ponafet.ru/wix?keyword=talk+talk+discography+rar PDF link annotation
    • http://rivozuzeno.mywebcommunity.org/86805770648.pdfIn PDF document text
    • https://ranetaxute.weebly.com/uploads/1/3/4/8/134886021/3540649.pdfIn PDF document text
    • http://vowufijetapiko.sportsontheweb.net/harry_potter_and_the_goblet_of_fire_full_movie_in_english_dailymotion.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5fd353a0b4772.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379486/normal_5ff471de5953e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404310/normal_603d7b6bbcb3f.pdfIn PDF document text
    • https://jibowosiz.weebly.com/uploads/1/3/4/6/134632869/a8fd8dbffa5445e.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/ejercicios_de_ecuaciones_de_primer_grado_2_eso_con_soluciones.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/what_does_the_snowflake_symbol_mean_on_weather_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376374/normal_5fdfdf71a6e74.pdfIn PDF document text
    • https://pezibife.weebly.com/uploads/1/3/4/3/134376528/seruxomilimuk.pdfIn PDF document text
    • https://tazusovekofuwaj.weebly.com/uploads/1/3/5/9/135969448/gosum.pdfIn PDF document text
    • https://pufenenuboz.weebly.com/uploads/1/3/0/7/130738511/wosimagav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8f3ccadf-5657-4a17-a5bb-d72a239911e4/is_kirby_clash_free.pdfIn PDF document text
    • https://75e6061f-eb7a-4ce8-b546-077bf96366c3.filesusr.com/ugd/2dfd19_366625ba9dda47d8918fe7a770a42c99.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b5df3c3-4d71-4919-a341-f5150ccbbbee/pumudogowezig.pdfIn PDF document text
    • https://156bb51f-0b62-477f-88ca-8620af00812b.filesusr.com/ugd/e3ff21_f56ebbb06efa45fca863c32ee10b5d19.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ea5336-f081-416d-b20a-08762c4656ee/kovurukipigak.pdfIn PDF document text
    • https://2f8a6ab9-e864-4757-b083-6627a13f4c48.filesusr.com/ugd/405339_73da495597c24e31bc87838ee8795e15.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b659ce-c392-4bfb-89b3-1a16a9a029f4/25146123064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff382303-9550-44d3-9a12-675939fb18db/18905843122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fe72b64-41da-4860-bd5c-2cdbd9380bf9/glacier_bay_faucet_replacement_cartridge.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF827 5012 bytes
SHA-256: 3fb2bcaecbc83dff8a4f60f094f44abc425b4414ed0f333db9321d79ffacc469
font_01_sfnt_off00010944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10944 10644 bytes
SHA-256: 34e182f975f94852cce23a8c451fcbd9a330386b03876fe83adcc8d704c3432e
font_02_sfnt_off00012e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E03 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
font_03_sfnt_off00014333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14333 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.