Malicious PDF — malware analysis report

Static analysis result for SHA-256 9906e8639afe00a6…

MALICIOUS

PDF

41.6 KB Created: 2020-08-29 17:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df7cf467277d9c2f4cc1ab3f2fba263e SHA-1: bc8d7781baeb1393b9dfba07b778937ff0c9705d SHA-256: 9906e8639afe00a6fd8dbecf69a74e183039b88d68e9b4178a055e68ed6e0cf5
154 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'https://ttraff.cc/wix?keyword=scansnap+ocr+existing+pdf' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL and other PDF-related metadata, suggesting it was generated programmatically to host these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=scansnap+ocr+existing+pdf
    • https://cdn.shopify.com/s/files/1/0462/3663/1189/files/kulugabebap.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/zolexelijizanivufiwetaxod.pdf
    • https://cdn.shopify.com/s/files/1/0430/0842/6147/files/lezipunekekegoxavenagixem.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/lubebewavodinatubejazon.pdf
    • https://static.usrfiles.com/ugd/b8c837_893dac0340ab4e1f8b41f172dcd4a74f.pdf
    • https://static.usrfiles.com/ugd/b8c837_07d133cd68a94983bde22cdd42526000.pdf
    • https://static.usrfiles.com/ugd/b8c837_bde198fb914a4aca9ab7a69021bd3f9b.pdf
    • https://static.usrfiles.com/ugd/b8c837_988c0c7e86fa4635926f388796f04f61.pdf
    • https://static.usrfiles.com/ugd/b8c837_76f1e2bbcfa240e8ba01273a0e1bb731.pdf
    • https://cdn.shopify.com/s/files/1/0462/7680/4768/files/code_formatting_sublime_text_3.pdf
    • https://cdn.shopify.com/s/files/1/0451/0570/9219/files/literatura_brasileira_arcadismo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3743/2744/files/acalasia_esofagica_fisiopatologia.pdf
    • https://cdn.shopify.com/s/files/1/0438/3450/7426/files/serexazirexitetedoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/9464/6689/files/fezetajexefasux.pdf
    • https://cdn.shopify.com/s/files/1/0428/6539/3831/files/barry_callebaut_annual_report_2008.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/honey_gain_app_apk.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/17278777665.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_off000060e3.bin
4480a0f9800bc640da9d1c7973c8636868403aa20ccbc834ab4d218370535ae7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E3 5460 bytes
font_01_sfnt_off0000737a.bin
1ec9b96b79944eef6dab6a54d25f463d655eec1db60e49daf05a677180a9ea3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x737A 11732 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.