Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe2d229ba79e3cb4…

MALICIOUS

PDF

37.0 KB Created: 2020-08-25 09:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e3e53788b875ac19c8f75907b946a15 SHA-1: fefddaa9ab086370ab08282a1a00bacccd47c52a SHA-256: fe2d229ba79e3cb42b3f170a88ecfd4786e877e27f55e11a6fe507e4e813c2c3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Canyon camera driver' and the malicious URL, suggesting a lure for users seeking drivers. The ML classifier strongly indicates maliciousness, and the presence of a redirector URL confirms a malicious intent to lead users to harmful content.

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=canyon+camera+driver
    • http://files.monfortestatesdacula.com/uploads/1/3/2/6/132681002/226bb98.pdf
    • http://sibawos.lghartphotography.com/uploads/1/3/2/7/132740505/9944683.pdf
    • http://files.rioxpvista.com/uploads/1/3/1/6/131637034/36c763c9765.pdf
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/vuvakubaxoxakefo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7992/files/ielts_writing_task_2_types.pdf
    • https://cdn.shopify.com/s/files/1/0434/2795/4840/files/horns_joe_hill.pdf
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/beirut_tourist_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/32348770752.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/wukasazuzu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/39894573412.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/tesibiliwagoxujomir.pdf
    • https://cdn.shopify.com/s/files/1/0435/5391/5043/files/accuracy_and_precision_difference.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005469.bin
fb4cbd82072a50e033bf1e075e6bf82fe437897591c8de2abc9d9e3829f14834
pdf-font-stream PDF embedded font (sfnt) at offset 0x5469 4944 bytes
font_01_sfnt_off00006528.bin
a9cdb0621907b1c223db89c5492cc41c0d9818b5cd96df7f783a608ad8ad0b75
pdf-font-stream PDF embedded font (sfnt) at offset 0x6528 10044 bytes