Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b880245333d5b29…

MALICIOUS

PDF

39.5 KB Created: 2020-08-18 21:27:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dc85bc348e6d611a1ddbaacde586923 SHA-1: a27da6f51c1b85cfadaa2d4235f33df1a05a13fe SHA-256: 5b880245333d5b29650e41e247585b0e441fb50a470a2845c883be2c3de9248e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to a 'cheap manual bottle filling machine' and a URL pointing to a redirector. This suggests a phishing or scam attempt to redirect users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=cheap+manual+bottle+filling+machine
    • http://baredow.vasquezcpa.com/uploads/1/3/0/7/130739206/3a438b0f.pdf
    • http://leduwudab.travisbenrobinson.com/uploads/1/3/0/8/130874493/2562781.pdf
    • http://files.mvlmc.org/uploads/1/3/1/4/131453402/c4fad21d6964798.pdf
    • http://files.learn-centre.com/uploads/1/3/1/1/131164120/rejugegaxoji-tidurom-noxanovoleke.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/7658/2550/files/34836101650.pdf
    • https://cdn.shopify.com/s/files/1/0436/4589/4816/files/colitis_ulcerative_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0440/8439/6184/files/arctic_cat_atv_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/biographical_dictionary_of_modern_egypt.pdf
    • https://cdn.shopify.com/s/files/1/0427/9618/7815/files/sketchfab_download_script.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4687/files/76210177113.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/calendar_june_july_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/35849638244.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/dossier_d_aide_au_logement_caf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/69378437192.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/plural_form_of_crisis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0797/5330/files/fawewivadanipidelexo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e28.bin
eb9ef0203f09df6bbc49a839fb10b9fe06ac999afcad4f42c5655cd8e62eaf7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E28 5200 bytes
font_01_sfnt_off00006fbc.bin
636111c660e3a302bae0cc35d2678c5148992fdc8e422840e156bb85eab30ad7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBC 9740 bytes

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