Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d991fb5282b9fbc…

MALICIOUS

PDF

38.3 KB Created: 2020-08-14 22:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e69a577e039ded9fa7f366ff090f1e55 SHA-1: 214baec050e4d0e0cd55dbf966188de2583fe05e SHA-256: 0d991fb5282b9fbcc4aebd81940980dab83389a29060ff2545825e463ad166aa
162 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 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though partially corrupted, contains the same redirector URL. The presence of multiple embedded links suggests an attempt to distribute malicious content or conduct phishing by directing users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • 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/pify?keyword=cara+membuat+link+google+formulir
    • http://lejot.seattlescores.org/uploads/1/3/1/3/131380429/vupasatajuki_vukagamazetedi_xepowovu.pdf
    • http://gafove.kathrynfree.com/uploads/1/3/2/3/132303079/zarulibi-xajilezatave.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/shiny_stone_pixelmon.pdf
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/after_7_ready_or_not_live.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/megaman_zero_2_rom.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/scrabble_two_and_three_letter_words.pdf
    • https://cdn.shopify.com/s/files/1/0431/0777/8711/files/18361501058.pdf
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/high_school_english_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/vukuzilikuninum.pdf
    • https://cdn.shopify.com/s/files/1/0430/5377/7047/files/rugigudawogilonutatarex.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/77725893181.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/22275650389.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/sizezasotosipinonuwejaka.pdf
    • https://cdn.shopify.com/s/files/1/0432/2636/6111/files/renebitelepotokutaxon.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000598c.bin
18afb94ba160b68fa59861eaea886149dcba4f3c337a77b7a81bba676d0a12ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x598C 5016 bytes
font_01_sfnt_off00006a90.bin
db094a736134ba1d198ccfa677ae768fb02a61cf9328447b0989b9b942a5fdbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A90 9904 bytes

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