Malicious PDF — malware analysis report

Static analysis result for SHA-256 d45e1016c44afae8…

MALICIOUS

PDF

51.5 KB Created: 2020-08-09 13:35:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f6cada9a0886cd20f42136719e5c17d SHA-1: 611b0828eec55fd72046463ba4eb922f57518e93 SHA-256: d45e1016c44afae87bc3b31136f1f025b6f49e52003f96e80c55a9386b1e72a5
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a common tactic for SEO link farms and redirecting users to malicious sites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=brief+history+of+computer+networks+pdf as malicious. The document body, though heavily obfuscated, contains this URL and other links that appear to be part of a link farm, suggesting a social engineering attempt to drive traffic to potentially harmful content.

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/pify?keyword=brief+history+of+computer+networks+pdf
    • http://files.thesenseofplace.com/uploads/1/3/0/8/130814935/7276d.pdf
    • http://files.mssimonsays.org/uploads/1/3/1/3/131383380/neguxizufetek-xazaxakurogiri-nikotesari.pdf
    • http://files.bhscommunityboard.com/uploads/1/3/0/8/130873918/kutajapififametuxo.pdf
    • http://files.ewengur.com/uploads/1/3/1/3/131398250/f07777454dda49.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4198/files/89428500460.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0438/0377/1041/files/boxudugawuxaza.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jidaxuno.pdf
    • https://cdn.shopify.com/s/files/1/0437/6032/0663/files/69202212014.pdf
    • https://cdn.shopify.com/s/files/1/0439/1557/5464/files/domino_s_pizza_menu_card_with_price.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/cisa_review_manual_2016_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/62451085688.pdf
    • https://cdn.shopify.com/s/files/1/0433/8440/6181/files/illumination_formula.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/oscilloscope_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/58094118989.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_off00007d01.bin
700d3fe146f56b48cae69953c8a743a153625b6a3f2d922cd4dfa78101c9b9f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D01 5344 bytes
font_01_sfnt_off00008f26.bin
7643d81ebf77fb5ff57d11b93c58987da60124b66f8929876947c88cf07a8be5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F26 10396 bytes
font_02_sfnt_off0000b278.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xB278 4324 bytes