Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac02533cf1f980d…

MALICIOUS

PDF

47.8 KB Created: 2020-09-05 04:30:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06d81306626eae8f8f09d1684932562e SHA-1: 058d50f30b9626b26650eec75f901419674468d1 SHA-256: cac02533cf1f980db66c0096697f93a6f870c56dd5141bbc4695059b6f10a379
150 Risk Score

Malware Insights

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

The PDF document was flagged for containing a malicious redirector link and a large number of external PDF links, suggesting a link farm. The primary malicious URL identified is https://ttraff.club/pify?keyword=british+english+slang+dictionary+pdf. While the document body contains garbled text, the heuristics strongly indicate a malicious intent to redirect users. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.club/pify?keyword=british+english+slang+dictionary+pdf
    • https://static.usrfiles.com/ugd/b8c837_0a099aa030a84d0eb09d07f9fefb500f.pdf
    • https://static.usrfiles.com/ugd/a59130_f474faa71f59431393df5eea7f3f7ad6.pdf
    • https://static.usrfiles.com/ugd/c3548c_1645b9cbc00747ac85f3c3da89f7b511.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
    • https://cdn.shopify.com/s/files/1/0448/2826/2560/files/pusop.pdf
    • https://cdn.shopify.com/s/files/1/0464/7449/4104/files/angela_ro_ro_discografia_completa.pdf
    • https://cdn.shopify.com/s/files/1/0469/0336/1698/files/2016_prelims_answer_key_insights.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0550/files/simple_algorithm_examples.pdf
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/revista_natura_ciclo_8_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/1565/0980/files/hsk_1_vocab_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/9046/0324/files/aprender_japones_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/61773733322.pdf
    • https://cdn.shopify.com/s/files/1/0432/7197/9171/files/buvagoxavivasawufud.pdf
    • https://cdn.shopify.com/s/files/1/0440/6450/6006/files/capitis_diminutio_maxima.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_off00007bcf.bin
7154cfa19450a0815126c9f9fc8f03280b25bf7054c40147a0e964be340aed1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCF 5568 bytes
font_01_sfnt_off00008ec8.bin
030a81da3f9eaa0b927c811dcccaa37117c7d2699e9bd699065980fb8997d470		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC8 10428 bytes

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