Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f036140158d335…

MALICIOUS

PDF

44.3 KB Created: 2020-09-02 14:39:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2d2081622efd2990c2b2ebd69ffd33d SHA-1: 9a996a25f0936ba13a8da6cffef905079201d423 SHA-256: 66f036140158d335b365eae19fee903b4eca1a41bafa8ffd12a2549e0f76314a
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.club'. The document body, though heavily obfuscated, contains text related to a 'new website movie free' lure and the malicious URL. The presence of numerous embedded URLs, including the primary malicious one, suggests an attempt to drive traffic to potentially 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.club/wix?keyword=new+website++movie+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/5fd5c1_22729d002d004ef0b5131598e6ca18e9.pdf
    • https://static.usrfiles.com/ugd/e2c6c1_098a693bf6394508a20d89e51b4a2527.pdf
    • https://static.usrfiles.com/ugd/4cf28d_20efc284b7cb4e5e94ea4289abb4fde0.pdf
    • https://static.usrfiles.com/ugd/2ac701_c5bc792a74e047f6b6b901e144e50bb5.pdf
    • https://static.usrfiles.com/ugd/09273f_e4e8f2ee254b43ffa970ccdd45d3fc10.pdf
    • https://cdn.shopify.com/s/files/1/0463/3414/8763/files/4359576425.pdf
    • https://cdn.shopify.com/s/files/1/0429/8260/4963/files/kemikolarozisefuzodexuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/5177/8197/files/software_abbyy_transformer_2._0.pdf
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/mummers_parade_2017_live_stream.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8765/files/types_of_genetic_mutation.pdf
    • https://cdn.shopify.com/s/files/1/0435/9107/3947/files/ayyappa_telugu_songs_harivarasanam_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/91568502089.pdf
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/lutama.pdf
    • https://cdn.shopify.com/s/files/1/0454/4416/9878/files/ordinal_numbers_esl_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/7702/5446/files/hamlet_online.pdf
    • https://cdn.shopify.com/s/files/1/0436/2321/9363/files/beturegug.pdf
    • https://cdn.shopify.com/s/files/1/0433/4528/1183/files/jigonotajamepazar.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7224/files/nekozupani.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_off00007121.bin
c0c2ecf193d31a5c5c035fc158d2b6d6b45140a743629e318c8766944c54bf16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7121 4932 bytes
font_01_sfnt_off000081f2.bin
cdc798f3bd884a0a7aceacdaa6a1cb60fad02bfee4822bb110278e176d05ff75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F2 10076 bytes

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