Malicious PDF — malware analysis report

Static analysis result for SHA-256 142f2239714d53e0…

MALICIOUS

PDF

40.0 KB Created: 2020-08-13 23:51:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8d3db74d08dd38f7b17ea2aa152a6cf SHA-1: 3f3f991679c37dd5c9732d780f59028f4455a68e SHA-256: 142f2239714d53e08fd68a556f4e5060d5f85f198dbdce7b1785db233ab7bb7c
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to reference a 'Peugeot bipper 2015 manual' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.com/wb?keyword=peugeot%20bipper%202015%20manual
    • http://files.lachicalocajc.com/uploads/1/3/1/4/131438888/3004103.pdf
    • http://files.allisoncrumpton.com/uploads/1/3/2/8/132814933/7733627.pdf
    • http://files.hannakuyper.com/uploads/1/3/2/8/132814342/bobefazez_dutidivizor_vazeber_xutusinetonez.pdf
    • http://fabiwaz.seasonedservices.com/uploads/1/3/1/4/131437792/3395566.pdf
    • http://files.mastersofmasternodes.com/uploads/1/3/0/9/130968995/lamuxodizosilufumum.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/gomolonodefawuzawuxoweb.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5462/files/35683528461.pdf
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/voperamexekemog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mabiwabupo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2200/7969/files/anamika_academy_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/18738423963.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulanevu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/84561256565.pdf
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/8100973200.pdf
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/29883091309.pdf
    • https://cdn.shopify.com/s/files/1/0436/6611/2662/files/lobedera.pdf
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/animals_and_their_homes_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/3629356354.pdf
    • https://cdn.shopify.com/s/files/1/0431/0768/0405/files/29101568178.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_off00005c54.bin
5a8bcb86efed17f513bd364f72c1be325caa02d7658b78b3cc7086d018632617		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C54 5552 bytes
font_01_sfnt_off00006f20.bin
3183e198532d4ad5606178cf657a6cd31d6483c7b476843d387cd49bb620d2bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F20 10520 bytes

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