Malicious PDF — malware analysis report

Static analysis result for SHA-256 298ff7e0fbe02268…

MALICIOUS

PDF

36.3 KB Created: 2020-08-19 14:22:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0bb9fe8cb37e629f31e41f58ed3ec9a2 SHA-1: 63ff9002fb1217980c40fd69adde4b5726d90100 SHA-256: 298ff7e0fbe02268f8b56714b17cb5ce494bd1491aad1ef97032b3f353f588d0
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'bejeweled games' and a URL that appears to be part of a link farm designed for SEO manipulation. The primary malicious URL is https://ttraff.com/pify?keyword=bejeweled+games+online+free+no, which is likely used to redirect users to further malicious content. The presence of multiple PDF links, many pointing to Shopify domains, suggests an attempt to blend malicious links with seemingly benign ones.

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=bejeweled+games+online+free+no
    • http://noxawege.matthewsplacetucson.com/uploads/1/3/1/3/131398560/8736813.pdf
    • http://files.bridgeofmusic.org/uploads/1/3/0/7/130775306/liduji.pdf
    • http://files.theqrnetwork.com/uploads/1/3/0/9/130969680/feriguxezowega.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8156/files/mazda_cx5_android_auto_retrofit.pdf
    • https://cdn.shopify.com/s/files/1/0436/0005/2387/files/83749621092.pdf
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/definition_of_performance_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7148/files/43763583511.pdf
    • https://cdn.shopify.com/s/files/1/0432/0765/5579/files/tailwind_css_navbar_example.pdf
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/73129166751.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/lagna_nimantran_patrika_format_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/bukanazafesezedileji.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/gomawedalolexosore.pdf
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/90958764874.pdf
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/mutikojefumoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/silamule.pdf
    • https://cdn.shopify.com/s/files/1/0432/4737/0402/files/84407571200.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_off00004f3b.bin
6cfc3e6bf7be79cfcb312b0278723e3de4391704fc009db61bd74a6f0aca2da4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3B 5444 bytes
font_01_sfnt_off000061c2.bin
7b195bcb5d0a5073b6cdc9602a7f34b44182856a4cc15d7c1933513d7e9910a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 10052 bytes

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