Malicious PDF — malware analysis report

Static analysis result for SHA-256 e214f4a83ebbb02e…

MALICIOUS

PDF

46.9 KB Created: 2020-08-26 09:12:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9aaa6d765b161e554bb839969e0398ba SHA-1: 1b2a16bfd004e12886460276363af4fd870cb5b3 SHA-256: e214f4a83ebbb02ef9007f665e2a0e2d37b2a8a259318fd284a18db9a16a16cc
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though partially corrupted, contains the text 'Comment envoyer un diaporama par mail' and the malicious URL, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm used for SEO poisoning or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=comment+envoyer+un+diaporama+par+mail
    • http://files.budapestacousticband.hu/uploads/1/3/2/8/132814387/raxibaduwarulo_jemawifariwu_folojoj.pdf
    • http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.pdf
    • http://files.northamptonmanandvan.com/uploads/1/3/0/8/130813134/7410038.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdf
    • https://cdn.shopify.com/s/files/1/0436/3842/3710/files/ranchos_ganaderos_en_jalisco_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4885/files/58170565330.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/67534421493.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1622/files/dell_optiplex_9020_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/invitation_meeting_template_email.pdf
    • https://cdn.shopify.com/s/files/1/0429/2358/9788/files/terudufawimesa.pdf
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/talizutufexewomas.pdf
    • https://cdn.shopify.com/s/files/1/0461/7545/3338/files/starpoint_gemini_warlords_trade_routes.pdf
    • https://cdn.shopify.com/s/files/1/0437/2122/8440/files/xaver.pdf
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/21788403657.pdf
    • https://cdn.shopify.com/s/files/1/0461/0981/9043/files/avery_dennison_zweckform_office_products_manufacturing_gmbh.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
font_00_sfnt_off00005257.bin
645d077a183a8d758ee87055799f65f1f91e505d28b0d68b90d9a5553de74f63
pdf-font-stream PDF embedded font (sfnt) at offset 0x5257 4992 bytes
font_01_sfnt_off0000633e.bin
3a66d901132aa6d241d27378a3d7b5a2439eef89e7cdf7fc028cdda7d41acff8
pdf-font-stream PDF embedded font (sfnt) at offset 0x633E 11964 bytes
font_02_sfnt_off000089da.bin
6f1ff871cf6f8a11a72652b45576c366cdb39a1ef29e9eb747fa7a572d777da9
pdf-font-stream PDF embedded font (sfnt) at offset 0x89DA 16132 bytes
font_03_sfnt_off00009ea2.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA2 4324 bytes