Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08be5d8dfe3a7c3…

MALICIOUS

PDF

50.9 KB Created: 2020-09-03 14:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f457f877af58e8bc8c8dc06a7de9962 SHA-1: 8875ada64b48e279c3f54fd62d9a3b84e168b5e9 SHA-256: e08be5d8dfe3a7c3ed3d31c14b2711a315347992eefb421d0d0a2d49dd8f790a
136 Risk Score

Malware Insights

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

The PDF file contains numerous links, masquerading as a download for an 'editorial calendar template excel'. One of these links, https://ttraff.me/wix?keyword=blog+editorial+calendar+template+excel, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links to static.usrfiles.com, suggesting a lure to a malicious site. The presence of a visual download button and urgency language further supports a phishing or social engineering attack pattern.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.me/wix?keyword=blog+editorial+calendar+template+excel
    • https://static.usrfiles.com/ugd/0bcf16_29dd0e325836499e80cf97c349ae2615.pdf
    • https://static.usrfiles.com/ugd/6a7407_a40337ca45474987a89950602b16e594.pdf
    • https://static.usrfiles.com/ugd/3ed902_13b63f1ff3204f50a8c02ac38e909d5e.pdf
    • https://static.usrfiles.com/ugd/de9003_d1bb479ceb2c4ba4ba7b0f0edf22666a.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce009ef657864d7f8b0a84db86214aba.pdf
    • https://static.usrfiles.com/ugd/b8c837_d92458ecee1c45c6b35af5bffbd129bb.pdf
    • https://static.usrfiles.com/ugd/704f6c_dc6737a05dcc413e853d61fc70fb0335.pdf
    • https://static.usrfiles.com/ugd/74e9cf_c384551034454d4586fc7940f040b22a.pdf
    • https://static.usrfiles.com/ugd/6c313a_00d60d1345a44a97ba5728ab3d82e87a.pdf
    • https://static.usrfiles.com/ugd/7d21c0_a8c2c05b9a2d46399807671ce99f51f6.pdf
    • https://cdn.shopify.com/s/files/1/0437/7932/6110/files/welezuxojotipamotov.pdf
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/academia_school_simulator_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/big_data_analytics_in_cyber_security.pdf
    • https://cdn.shopify.com/s/files/1/0434/3287/0044/files/band_baaja_baaraat_movie_song.pdf
    • https://cdn.shopify.com/s/files/1/0463/2851/2667/files/45210293475.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/85130947924.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_off00007d15.bin
0d3b49e034bd6fe37549f3e68f43a810d26a4fd00922e53439f11aa322bc589e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D15 5332 bytes
font_01_sfnt_off00008f1c.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1C 2268 bytes
font_02_sfnt_off0000992c.bin
798940904fb73829795eac69f0c4e939edd0b2d77bf2d122fcb1699b0b5549b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x992C 10944 bytes

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