Malicious PDF — malware analysis report

Static analysis result for SHA-256 0258f8a462fe67ab…

MALICIOUS

PDF

43.3 KB Created: 2020-08-06 13:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60ef933066eeedae689ee0548155f5f1 SHA-1: f263885e5fda468cbded660e937b5bdd6d33adf8 SHA-256: 0258f8a462fe67ab4450c696e31f0ac0b2776efc3468a2567da2dbd94b147d9a
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with the primary one redirecting to a malicious domain identified as 'ttraff.com'. This domain is flagged for malicious redirector activity, suggesting the PDF is part of a link farm or phishing campaign designed to lead users to harmful content. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect.

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.com/pify?keyword=glass+bottle+manufacturing+process+pdf
    • http://files.my-obr-opinionplatformsk.com/uploads/1/3/1/3/131380337/galarinikej-kobowananamet-guluvadazuv-totewegul.pdf
    • http://files.thespeculativekitchen.com/uploads/1/3/2/6/132681513/radagise.pdf
    • http://files.originalsexyslave.com/uploads/1/3/1/3/131382223/fenupabepalakisima.pdf
    • http://files.lmmsorchestra.com/uploads/1/3/2/7/132740337/d989b74c8c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/behavioural_family_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0432/3177/2835/files/moxifatalaxexiluwos.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/fopudejokivilapakox.pdf
    • https://cdn.shopify.com/s/files/1/0430/9775/1709/files/sebiwelijikebu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/vusujawuzas.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/45684671643.pdf
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/zukuwetoguzadufasug.pdf
    • https://cdn.shopify.com/s/files/1/0437/8125/9421/files/31507973422.pdf
    • https://cdn.shopify.com/s/files/1/0446/2955/7411/files/britax_frontier_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/in_print_word_whizzle.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_off00006acb.bin
65b0d3394f0cd05ccb5c28d36f38f791c74c0666f61284fb35089036028c139e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACB 5644 bytes
font_01_sfnt_off00007de2.bin
7d2d8274ad074adac4d36a5e2bfe9316a486697e18ac7e69dd476a4d766f4a83
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE2 9928 bytes