Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e81b333d11fdfca…

MALICIOUS

PDF

32.8 KB Created: 2020-08-21 11:03:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f65e9c9bf8a93da0914a270687e3b44 SHA-1: f320d99e441e88325039f890beeb8b887cce476e SHA-256: 0e81b333d11fdfca998d9c92ecdead3a5f062a623944591c8d8d24d5d7169e2a
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to product descriptions and URLs, suggesting a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector URL indicates an attempt to lead the user to a harmful destination, likely for phishing or malware delivery.

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/pify?keyword=soda+ankle+strap+platform+sandals
    • http://files.sawnorowski-class.net/uploads/1/3/1/4/131438891/b3fad50c9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/4161/1159/files/noziwatogevekugazoperi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/76839812940.pdf
    • https://cdn.shopify.com/s/files/1/0437/6474/4343/files/classifying_rational_numbers_worksheet_lesson_2-_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/6034/7551/files/94498365290.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/gomelapera.pdf
    • https://cdn.shopify.com/s/files/1/0436/5726/5305/files/codecademy_ruby_on_rails_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/kogezudaluvum.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/ratepe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7206/0573/files/50370367922.pdf
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/40011649283.pdf
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/38754020997.pdf
    • https://cdn.shopify.com/s/files/1/0438/4561/5766/files/dobajojizunijiwutako.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/fegugekeziwijizexidezozez.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/veziwifiwevimilerebedol.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2962/files/66037095727.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_off000043c2.bin
ed14a05b3c89d7f7dbfaf7b41addeb0880464e138781a9baf961999b7ba487ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43C2 5352 bytes
font_01_sfnt_off000055e2.bin
21480bf8b5221eceedc782efd6c49894cdf74c64640fd153b754c1cd5b09dbb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E2 9728 bytes

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