Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ceaf2ffaa0d648…

MALICIOUS

PDF

54.8 KB Created: 2020-08-09 22:02:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ff7508a0c321ec8ca0f59ad684a9aad SHA-1: c8406f71dcf5e3467160a0f4d8741f311a4c6d58 SHA-256: 47ceaf2ffaa0d6484a4b058b38dfc9e4cfdc83f2e128a99ae992bae99a92ee75
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru). The document body, though heavily obfuscated, contains text related to 'abundance chakra healing book pdf' and the URL that was likely used to generate this content. The primary malicious behavior observed is the redirection to external, potentially harmful, content via the embedded 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.ru/pify?keyword=abundance+chakra+healing+book+pdf
    • http://files.totalmarinegippsland.com.au/uploads/1/3/1/4/131437599/zarozidafilaba_webim_gamusupefegu.pdf
    • http://files.inthemixdjsnh.com/uploads/1/3/0/7/130775205/b1980377c3.pdf
    • http://files.vancouvermermaid.ca/uploads/1/3/1/4/131406732/8660289.pdf
    • http://files.k-12librarian.com/uploads/1/3/1/3/131381612/sexubutuga.pdf
    • http://files.indyofficelistings.com/uploads/1/3/1/6/131636807/763661.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9716/files/30111001530.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87463685859.pdf
    • https://cdn.shopify.com/s/files/1/0434/9516/2022/files/18968652111.pdf
    • https://cdn.shopify.com/s/files/1/0432/9907/8299/files/72437592956.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3233/files/ping_g20_driver_reviews.pdf
    • https://cdn.shopify.com/s/files/1/0437/7860/5218/files/lightsaber_form_7.pdf
    • https://cdn.shopify.com/s/files/1/0429/4000/6559/files/lejenogazatovesuzi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5020/4327/files/43462001496.pdf
    • https://cdn.shopify.com/s/files/1/0435/8114/5243/files/javascript_distinct_array.pdf
    • https://cdn.shopify.com/s/files/1/0439/1898/3323/files/horse_riding_simulator.pdf
    • https://cdn.shopify.com/s/files/1/0436/9547/2794/files/product_business_plan_examples.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_off000097c6.bin
174d01d758ca29abaea898476c6f125894fcfea6e5693ce1ac24e545464670a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x97C6 5432 bytes
font_01_sfnt_off0000aa3d.bin
c08f082c3b2a28473385d7fd1ac72a2ba9f9d1edbf1b1fc89da39fce9cf18cbf
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA3D 10524 bytes