Malicious PDF — malware analysis report

Static analysis result for SHA-256 0011037e739885a1…

MALICIOUS

PDF

69.1 KB Created: 2020-08-23 13:25:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc21702bca1b3651e537f5d841afd67d SHA-1: 9da919bb2391b0014988dfbeb36a37942ca4a4dd SHA-256: 0011037e739885a18d3c46b9ee5b05b428e7978bdda1b0d1e6207f5c1f96ffdc
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=telecharger+roman+la+boite+a+merveille+pdf'. The document body also contains this URL, indicating an attempt to trick the user into visiting a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • 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=telecharger+roman+la+boite+a+merveille+pdf
    • http://files.bonnetcatering.com/uploads/1/3/0/7/130738914/4978455.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/2961/7057/files/tikapov.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/31971772629.pdf
    • https://cdn.shopify.com/s/files/1/0432/7623/9014/files/website_reference_apa_format_generator.pdf
    • https://cdn.shopify.com/s/files/1/0431/7344/5788/files/xagotoxujupulenuvofo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/biodata_format_for_marriage_file_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1384/8733/files/evangelion_1._11_stream.pdf
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/vovovafil.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000ebc2.bin
5a9611b790fc30c5290f1324a1b1538afb74af1a5f0f7e7fc67eafbd8d7c73f2		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xEBC2 17536 bytes
font_00_sfnt_off0000b1af.bin
0fdb4dcc0f3140bcf8a4e2fde42e0fda66a7e7cdbf284c94b7b14c6f77e84cae		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1AF 5540 bytes
font_01_sfnt_off0000c461.bin
d4db4fd7e6a9653a0bd50bdbc4e515defd28e691fe97926198998551e396a996		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC461 12536 bytes

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