Malicious PDF — malware analysis report

Static analysis result for SHA-256 978b5f49913f6e83…

MALICIOUS

PDF

38.8 KB Created: 2020-08-28 21:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b062e75223f955ee41cb364db15e1ced SHA-1: 8923891c979a1f3167e67154cfcdf19bf16e6cdd SHA-256: 978b5f49913f6e83d41b8c0a14ccc5ed0674501131221d663ac31d777c64e9b1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a motorcycle manual. This suggests a phishing or social engineering attack aimed at redirecting users to malicious content. The PDF also contains a large number of embedded links, many pointing to Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the primary malicious behavior is the redirection via the embedded URL.

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.com/wix?keyword=2007+suzuki+sv650s+manual
    • https://cdn.shopify.com/s/files/1/0440/7640/0792/files/51051710785.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/57269894040.pdf
    • https://cdn.shopify.com/s/files/1/0455/3523/2165/files/aluminium_profiles_for_windows_and_doors.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sebifoxof.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/21941733613.pdf
    • https://static.usrfiles.com/ugd/b8c837_e303e836fcfc4286a25534a1be6a9e77.pdf
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/1742452272.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6408/files/vikings_series_4_episode_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/4550/3655/files/new_year_photo_frames_2016.pdf
    • https://cdn.shopify.com/s/files/1/0439/3399/1080/files/lol_twitch_build.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/67157816045.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/veritas_honing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/52507930860.pdf
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/el_dibujo_arquitectonico.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_off000058cd.bin
65fa74d743a5baf9c974012c1af6899329357f45f9fea1c5d0daea24060899a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CD 5444 bytes
font_01_sfnt_off00006b52.bin
059626bfd8e980c55168d336e4aa907b3aceba58145ad73b02fb92b22cb34bce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B52 10532 bytes

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