Malicious PDF — malware analysis report

Static analysis result for SHA-256 b02af76e9f9db22f…

MALICIOUS

PDF

46.0 KB Created: 2020-08-17 07:19:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e648920a4273978ea34f04b2b14c9d1 SHA-1: 663a1e9a3c4e7dff99b1929774b326c7b1db8780 SHA-256: b02af76e9f9db22f831b821e56f00af66a8982f2ed5b729d7487a96f0e8d355a
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to an 'ffxiv job guide bard' and embeds a significant number of external links, many of which point to Shopify domains. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure via the URL 'https://ttraff.cc/pify?keyword=ffxiv+job+guide+bard'. The presence of a large link farm and the malicious redirector suggests a social engineering attempt to drive traffic to malicious sites, likely for further exploitation or phishing.

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.cc/pify?keyword=ffxiv+job+guide+bard
    • http://files.no-sewcrafts.com/uploads/1/3/2/6/132681308/1a037b0c58.pdf
    • http://files.inspiredayurveda.com/uploads/1/3/2/7/132711966/zovufe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5572/7260/files/vocabulary_diagnostic_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/introduction_to_statistical_machine_learning_masashi_sugiyama.pdf
    • https://cdn.shopify.com/s/files/1/0434/7586/1656/files/blender_video_editing_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/ccna_security_lab_manual_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/lurojiji.pdf
    • https://cdn.shopify.com/s/files/1/0438/0160/8353/files/binugo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8073/files/nokovesedugasuvixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/patowolofinojotijus.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/league_of_legends_file_size.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/72853274881.pdf
    • https://cdn.shopify.com/s/files/1/0448/3996/0737/files/algorithm_flowchart_and_pseudocode.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9292/files/hyderabadi_chicken_dum_biryani_recipe_in_telugu.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_off000076b0.bin
ecb7a9a71948a83c03de5249cad00b1496b182e317d8e789d8b351010932ce13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 5164 bytes
font_01_sfnt_off00008864.bin
51bb26ddd336d4c25b209989946f2c66c04c2a05af6446e93106ac30affa7e5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8864 10376 bytes

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