Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f18b25383e5a485…

MALICIOUS

PDF

42.9 KB Created: 2020-08-19 11:58:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0bb364532602d285669efdfc58c2b3df SHA-1: e548dd6837453ac72dedbe8a4bcdcd9855aac013 SHA-256: 5f18b25383e5a4852ed6a1a16dd16f0c46f807f5eac5fdfe8c30ee69a13de0c2
162 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector. The document body text, though garbled, suggests an 'order confirmation' lure, aligning with the 'SE_INVOICE_LURE' heuristic. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination, likely a phishing or malware distribution site.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=order+confirmation+template+bootstrap
    • http://files.realestatesystemsofgillette.com/uploads/1/3/0/7/130775672/7488231.pdf
    • http://zisisena.alexbaltodano.com/uploads/1/3/1/4/131483281/bonumulu.pdf
    • http://tawinar.homechekcnp.net/uploads/1/3/1/8/131857631/5724747.pdf
    • https://bbbootstrap.com/snippets/embed/order-confirmation-email-template-19073214-name/BBBootstrap
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/5470/1461/files/8657153670.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/65798435257.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/viradupabotezeb.pdf
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/rupatopezotegow.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/tafiziloririzufekipifi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/fast_cavitation_slimming_system_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/dugovaxurinumevozet.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/18528534801.pdf
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/mozajuravabegibedoli.pdf
    • https://cdn.shopify.com/s/files/1/0433/4868/9050/files/ruwotodememegurawixosa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/82100606956.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/fleet_vehicle_inspection_checklist.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_off00006151.bin
a5eae7a3f094e04eb56e15c396e16c8c6b64c3c97a010ee914567c63fbfa49c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 5468 bytes
font_01_sfnt_off000073c6.bin
8b8960ff7e9b29d32ccd49ce2d243da652b3192a3d80ea45c606ea0c5aa9e9a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C6 13324 bytes

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