Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb10c3453b763b7…

MALICIOUS

PDF

41.8 KB Created: 2020-09-01 03:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 208103b2fd7c6ba369abebb76f5195c2 SHA-1: 1870f84855bb0cbb54ca96d5017a3a4831aac8f0 SHA-256: 1bb10c3453b763b75516564ca227e8a914e951dae665e538f4a7cc3a4760b24e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'autotune fl studio 20' and a URL that matches the malicious redirector. This suggests the PDF is designed to trick users into clicking the link, likely leading to malware download or a phishing page. No scripts were extracted from this sample.

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=autotune+fl+studio+20
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/femaxiwujaxugese.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/ponitutur.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/65420527830.pdf
    • https://cdn.shopify.com/s/files/1/0432/6844/0224/files/baixar_jogo_de_tiro_apk_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/12283831816.pdf
    • https://static.usrfiles.com/ugd/16a96a_e7a757dfe848446b9967d1c32485087a.pdf
    • https://static.usrfiles.com/ugd/d54300_c4355ce706924cabb91992751d8c458b.pdf
    • https://static.usrfiles.com/ugd/8d57bd_9e683225372b452ab77d8b05bc785170.pdf
    • https://static.usrfiles.com/ugd/83f04e_3462935a19844bd7ad31a99a980701de.pdf
    • https://static.usrfiles.com/ugd/52b593_fe980cde9f8c43ff88b624d72d60419f.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cbf32c67fcd438ebdac23d0626f80df.pdf
    • https://static.usrfiles.com/ugd/d1c05f_9b14fab48ec74bf9b3981da91db70838.pdf
    • https://static.usrfiles.com/ugd/a44510_ba25bb8d44e94800a01b53830b826d2c.pdf
    • https://static.usrfiles.com/ugd/4117a9_f6dcd5e56a4e4741a5a976f0be6eaa6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_7f19fccfaa3946ce9e5e591fb39577f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ed5dcf84bea4e1887ed27bc043eac2f.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_aeb0df054c8541b6a97a880e0f81fbd0.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_off00006799.bin
9cb5615a9d85142ca2b9c4c4cc19daed1f5342f33ebb883568195d2d9a9c9a97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6799 4860 bytes
font_01_sfnt_off00007843.bin
123705c78cfdfc5fdcba2279323b1f7981af1da9fba9b9fd7bec371e9f58d736		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7843 10040 bytes

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