Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3b09fbf9a98e7c0…

MALICIOUS

PDF

48.4 KB Created: 2020-09-12 05:53:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc20296fb59a2b3e7d1d24bacbb2bf3f SHA-1: 0b99592c1b6c3132cff3049ce8b8ad7e6d5e5be7 SHA-256: a3b09fbf9a98e7c0e979e695dd8358f678b8a7444c883f4e4fe309e431db97a8
152 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Love of my life sheet music trumpet' and the malicious URL, suggesting a lure to trick the user into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which point to Shopify domains, likely to obscure the malicious redirector.

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.club/wix?keyword=love+of+my+life+sheet+music+trumpet
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/garden_mania_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/5077/0333/files/xabalubawizimise.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/infarctus_du_myocarde_infirmier.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/79851997996.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/free_download_to_word_document_converter_software.pdf
    • https://cdn.shopify.com/s/files/1/0436/1306/1277/files/lesavodedibix.pdf
    • https://cdn.shopify.com/s/files/1/0432/7230/6846/files/1993379255.pdf
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/bartender_2016_crackeado.pdf
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/bmw_x3_m_performance_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/silukefikoxolisexid.pdf
    • https://cdn.shopify.com/s/files/1/0460/6561/5003/files/annie_lennox_into_the_west.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdf
    • https://cdn.shopify.com/s/files/1/0482/2797/5322/files/89778266726.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/jonowudalotos.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/wekatezolobifezejiner.pdf
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/adverb_english_exercises.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000748e.bin
514b83882c4680cb0d0fe4d2453c0df3e36390a961fe6504233111ff1489c2a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x748E 4924 bytes
font_01_sfnt_off00008571.bin
83c9c1e282e87634a6f52cf87cab27a3c1f8dc0907e1cb813bab0935aaaec49a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8571 9828 bytes
font_02_sfnt_off0000a6c7.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6C7 4324 bytes

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