Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e72d2b3b1b0d76a…

MALICIOUS

PDF

57.1 KB Created: 2020-08-31 02:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f7f1ea8f061b9c64337e86bc482bb84 SHA-1: b6191c44ea0094bf9b70bc629a1f3cec4616a5e0 SHA-256: 7e72d2b3b1b0d76a8968761a8eafca3350bbc16380b85c2efc118c988d9f7799
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains numerous embedded links, including one pointing to a known malicious redirector. The document's content and structure strongly suggest an advance-fee scam, likely aiming to trick the user into visiting the malicious URL for a fake prize or delivery. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.ru/wix?keyword=plan+d%2527action+commercial+banque
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/6042/7928/files/35257024120.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/jofirijeze.pdf
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/components_of_aural_rehabilitation.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/black_roots_science_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4034/9082/files/72348725315.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5d5f1db93b345bcac292f10af032b67.pdf
    • https://static.usrfiles.com/ugd/913720_6355a1b643bd4fa0a1bcf6160d775e41.pdf
    • https://static.usrfiles.com/ugd/b8c837_37c0672c55984546a209a1b2c222cf94.pdf
    • https://static.usrfiles.com/ugd/97493d_2e8328476a724d46874be654a5230ae8.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_cf31ccf781ed48d18365d7a02c9f1aac.pdf
    • https://static.usrfiles.com/ugd/cc14e4_d44329f84ef0415c982275d1a6a7b4d9.pdf
    • https://static.usrfiles.com/ugd/ab922d_e93220d1fbd54e719caae78625d450d0.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdf
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/mabuketujib.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/42730856494.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a8c.bin
d94bd6803b3e1a6c61e2995c75e5720a3a94df12b535f6e5962b46d15ce40870		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8C 5208 bytes
font_01_sfnt_off00009c22.bin
89fa3e28f38f76b9c143c33e7105195d88bd8538d1a5837d60efa1b92ba8cd76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C22 11404 bytes
font_02_sfnt_off0000c245.bin
1be743c11efd1db6eb0b1d59ff599fce1244630bd3a52e256ed85df637fffceb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC245 16100 bytes

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