Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdf229b27ff54279…

MALICIOUS

PDF

46.3 KB Created: 2020-08-30 16:49:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc173c31853d36fc03706750d460dd2d SHA-1: 97ff8a836111e1f710d9d6cffc3cee9c0f63cbf3 SHA-256: bdf229b27ff54279b9b83be82536ad46d6bb24c09176a008240cc885dbfba754
152 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 pointing to SEO-optimized PDF documents hosted on Shopify. The primary malicious link, https://ttraff.club/wix?keyword=set+for+life+scott+trench, is identified as a known malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure through a link farm, likely for phishing or malware distribution.

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=set+for+life+scott+trench
    • https://static.usrfiles.com/ugd/e32576_640ceb6d4bb845f48eabeedd89d2d9aa.pdf
    • https://static.usrfiles.com/ugd/b8c837_88832ff918c442568b08c5cada25cd28.pdf
    • https://static.usrfiles.com/ugd/79e0dc_1bb53ae11b2d4cafa4b5f52cd57e9a5a.pdf
    • https://static.usrfiles.com/ugd/83e24f_393b3462cb8c4dbf81a55784f5b0cf85.pdf
    • https://static.usrfiles.com/ugd/b8c837_0019bec7fe5d4706b2cf7941c50487ad.pdf
    • https://cdn.shopify.com/s/files/1/0434/5574/2114/files/problemas_de_fisica_caida_libre.pdf
    • https://cdn.shopify.com/s/files/1/0432/2535/0301/files/27376078976.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4242/files/mutulasumuv.pdf
    • https://cdn.shopify.com/s/files/1/0450/3427/4966/files/puxamuvodofuxobevojiro.pdf
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/minecraft_tnt_mods.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/august_2017_geometry_regents_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/junajelow.pdf
    • https://cdn.shopify.com/s/files/1/0430/6137/9226/files/44246731313.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2791/files/audel_millwright_and_mechanics_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90278046640.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_off00007912.bin
72ffba975d5e22aa84f3294cbcf4cba9ed92f7cbcebca69a9b6501ac813dfc98
pdf-font-stream PDF embedded font (sfnt) at offset 0x7912 4864 bytes
font_01_sfnt_off00008995.bin
d7a2926f2b2cbc64031df87cfcac62697d0d12600c15e6e015513ce5c565db0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8995 10272 bytes