Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e1bd60323604795…

MALICIOUS

PDF

37.4 KB Created: 2020-09-01 01:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aba3cd2a91c98615bffc9c431fa9eb9 SHA-1: 48d3ca9ce088c5f47321ef2d98b7594dc068b124 SHA-256: 1e1bd60323604795aebc9a734726198f374404d52993b22e56383dcd5a49cbc4
128 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with 28 links pointing to external PDF files, suggesting a link farm or SEO abuse. Crucially, one of the embedded links directs to a known malicious redirector at 'https://ttraff.cc/wix?keyword=behka+re+full+song+free'. The presence of a visual download button lure further supports a malicious intent, likely to trick users into clicking malicious links.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=behka+re+full+song+free
    • https://cdn.shopify.com/s/files/1/0463/7461/7249/files/calculate_the_polar_radius_of_gyrati.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69901941500.pdf
    • https://cdn.shopify.com/s/files/1/0440/2629/8533/files/john_maxwell_5_levels_of_leadership_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/3531/9702/files/how_to_delete_insta_account.pdf
    • https://static.usrfiles.com/ugd/73cb9e_03704fcff5e34ee29060468748db3451.pdf
    • https://static.usrfiles.com/ugd/c068f8_924354327bf549a4a8a5bee47fcadc41.pdf
    • https://static.usrfiles.com/ugd/ac51ce_f3801d35a13a46ac8ee333686ea0d0e0.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/ssc_stenographer_previous_paper_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/5103/0430/files/anansi_stories.pdf
    • https://static.usrfiles.com/ugd/9d66c7_23aba948726f4f04b98fe29532d75a1e.pdf
    • https://static.usrfiles.com/ugd/81d6a4_042cfd228b2a4f91952124f6e60db735.pdf
    • https://static.usrfiles.com/ugd/33ab24_5e8adc5f8ead40eb862786691c26ed49.pdf
    • https://static.usrfiles.com/ugd/b8c837_f303b18b54a047ce8b31f22858190580.pdf
    • https://static.usrfiles.com/ugd/74c34a_05574c5428a34d599765eb3d48d3a1e1.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004752.bin
a5c74eadf6a758ff9a444723a7c9c3af28264d7ed09d948941a7376b7885f351
pdf-font-stream PDF embedded font (sfnt) at offset 0x4752 4896 bytes
font_01_sfnt_off000057f0.bin
2742089ccd6e3f3525b7fe2922f5b72d3bae82c27f0df3bb0dac361ba9dfeedb
pdf-font-stream PDF embedded font (sfnt) at offset 0x57F0 10224 bytes
font_02_sfnt_off00007af6.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF6 4324 bytes