Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d79f814264d9727…

MALICIOUS

PDF

48.5 KB Created: 2020-09-07 08:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26d5cc7e3eecc68e8c451ceb9257e20e SHA-1: d8f0af4206e6780d193b7ac295e813607317f703 SHA-256: 6d79f814264d9727f649a477bf501999d3e42fa74b5e3f1d55b51384ec2eaa1f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/wix?keyword=alan+walker+darkside+mp4'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are benign Shopify URLs. The document body, though heavily obfuscated, contains the malicious URL and a keyword suggesting a lure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.club/wix?keyword=alan+walker+darkside+mp4
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/airline_ticket_booking_website_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/43214643305.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6727/files/dijarilogirud.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/3075533858.pdf
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/tanufanavorogewojagerofu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/zubuge.pdf
    • https://static.usrfiles.com/ugd/2c76f4_59243b36e0a24ed1b65b4aa292e9f662.pdf
    • https://static.usrfiles.com/ugd/b8c837_96711c4ee1d3412d9f57b6d255b93abe.pdf
    • https://static.usrfiles.com/ugd/ffe0d3_ac12c291635a4310bad8ee97723e246f.pdf
    • https://static.usrfiles.com/ugd/89c6ad_4423e0b65ddd4d27afd0b42771e9f123.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ab2000b8d6042e19db345e48f2bcbda.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004654.bin
00cf0b679530ee2126fcb2de22eb35aa0475f8b52f78a17c89e19539c89a230d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4654 3748 bytes
font_01_sfnt_off000053cc.bin
537b501cd3dea1f6dede6558cb2c26b38cafc96d755b3788d0c03e3cbefadd17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CC 4936 bytes
font_02_sfnt_off00006476.bin
12f17561b43f1584829254d91fb2f2f9d790565a8edaa3c0f5c00ff914f95c02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6476 9968 bytes
font_03_sfnt_off000086f0.bin
e58e8e8d3617fa2f52d62469859eb662c26c1c1537dc21f5cc6f1aa71eaa6aed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86F0 18776 bytes
font_04_sfnt_off0000a457.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA457 4324 bytes

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