Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82ff472c3572671…

MALICIOUS

PDF

72.4 KB Created: 2020-08-02 21:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae6a308662cec07762f59136a6ce8615 SHA-1: 9a4d5e2942772918ec191591c642cf2d2f3268a5 SHA-256: d82ff472c3572671445c2e0ca81067596f0f4ad5bc6cc0bb43491a6a91ae8c56
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. The presence of a 'download button' heuristic further supports the lure mechanism. The file appears to be a link farm designed to redirect users to malicious content.

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.com/pify?keyword=kanakadhara+stotram+pdf
    • http://files.ameliahamiltonfit.com/uploads/1/3/2/7/132740665/jodalapesovesu-fapode-pubagezokatade.pdf
    • http://files.mydecorandgiftrep.com/uploads/1/3/0/9/130969800/nugumuposatoxuro.pdf
    • http://files.americanjidokwan.com/uploads/1/3/1/4/131437307/rijadexazir_zavuvovezoze_bafunisosemuwef_xitanosolinol.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/jetisokasuditovupugoteti.pdf
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/jakopipepusujefa.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/40383048205.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/khan_academy_mappers.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/gawab.pdf
    • https://cdn.shopify.com/s/files/1/0432/5765/9560/files/hells_kitchen_season_12.pdf
    • https://cdn.shopify.com/s/files/1/0428/9137/8854/files/45795812450.pdf
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/nedubefaviponitop.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/maremu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0582/9532/files/39855957315.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/californication_season_6.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/palimino_pop_up.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000da41.bin
207509d5ceed0ab24f636f592826e0c89c6d1486c5051df6eed2683f3baf566c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xDA41 18620 bytes
font_00_sfnt_off00009a8e.bin
24e79b90a2ff5b8ddc948a6903e5f00368ba177c6d7e818096bd94767fa460a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A8E 5280 bytes
font_01_sfnt_off0000ac54.bin
38ca0e522c264f10566fd8f9f5c124bdae5fd36c6204e1bfeee9d4d6bbef3686
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC54 3772 bytes
font_02_sfnt_off0000b7f6.bin
429a1fee49dba0f592300a8aa75c561d4fde296a1a0be57aeccb5434b0bccaf6
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F6 9944 bytes