Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c0e865b7a07157c…

MALICIOUS

PDF

40.2 KB Created: 2020-09-16 21:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c01797757b560f2c65109c8bf4f7711 SHA-1: 22e7e1a58e776c3d69915e0bf587f6943847cb3a SHA-256: 4c0e865b7a07157c12dfdfb3a79cfd9577794648a283900fca57226e7ee3ba15
128 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=blank+outline+map+of+southwest+asia', which is also flagged as a malicious redirector. This suggests the primary purpose is to lure users to click these links, likely leading to further malicious content or downloads.

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.me/wix?keyword=blank+outline+map+of+southwest+asia
    • http://files.maison-de-villars.com/uploads/1/3/2/7/132741020/08a305e0fd.pdf
    • http://files.vanessaarmandtesol.com/uploads/1/3/1/4/131453436/1733770.pdf
    • http://rorexek.mistletoealert.org/uploads/1/3/1/1/131163725/rokamo-gulet.pdf
    • http://vidaz.thegoldenreikicenter.com/uploads/1/3/0/7/130738918/girigo-gemiledisaz-fiduwesizofuwa.pdf
    • http://sazukesox.genesysem.com/uploads/1/3/1/6/131636698/e9d34e55dc735c.pdf
    • http://files.davidfagan.eu/uploads/1/3/0/8/130814432/mopujazukunawi.pdf
    • http://peteri.portieclub.com/uploads/1/3/1/3/131383657/3027702.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/cv_template_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/analogias_numericas.pdf
    • https://cdn.shopify.com/s/files/1/0431/2789/8268/files/datasheet_buzzer_5v.pdf
    • https://293f5feb-837e-4fb9-a3c0-3a0a207b3d48.filesusr.com/ugd/1e52da_4d7e51a83c6e4fc28261d1773a21e91d.pdf?index=true
    • https://877cfc73-2659-40c3-8e9a-bb4b57240f60.filesusr.com/ugd/610d21_50e7b275308344ea82075e6e49b5d1cc.pdf?index=true
    • https://75a1b22b-7baa-4795-adce-05a7bb4ac175.filesusr.com/ugd/d5cf39_d6e19fc3b614451289d8a7fcbddbec83.pdf?index=true
    • https://674cc0d5-9546-419c-a8b9-0122d4cc1a56.filesusr.com/ugd/b56239_193cf1a7e87849cab21c4470ecc576d0.pdf?index=true
    • https://5bd9dcd7-3937-4209-9a35-eca2fba897d0.filesusr.com/ugd/03f576_ac0b493121354882b405ec588b42b60f.pdf?index=true
    • 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_off00005ee1.bin
1785118ff046b567e8acf00ddc33c0388deb2b2e3794da38b6be34d5bf9f239b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE1 5248 bytes
font_01_sfnt_off000070b0.bin
782bbda92066d03682f5a7ac95dded34e9274fe22e8c46cd074d45325c027c12
pdf-font-stream PDF embedded font (sfnt) at offset 0x70B0 10408 bytes