Malicious PDF — malware analysis report

Static analysis result for SHA-256 d282bd78dd2352fa…

MALICIOUS

PDF

42.2 KB Created: 2020-08-31 04:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2c9ef54a0540f703c81ec6f1d5d1486 SHA-1: 10cf6ee9e08a45bdd6c7ac5a5ad893fb016b0a57 SHA-256: d282bd78dd2352fa94618ad30422eea24269c8f58f9f7c9130ae530d9ed7f930
152 Risk Score

Malware Insights

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

The PDF document contains a lure to watch a movie online, which is a common social engineering tactic. It embeds a link that redirects to a known malicious domain, ttraff.ru. This domain is likely used to host further malicious content or phishing pages. The PDF also contains a large number of links to external PDFs, suggesting a link farm or SEO poisoning attempt. No scripts were extracted, but the presence of a malicious redirector and the document's content strongly indicate a phishing or malware distribution attempt.

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/wix?keyword=watch+harry+potter+and+the+order+of+the+pheonix+online+free
    • https://static.usrfiles.com/ugd/d3758e_5812f587ef2740da9830d2855b326eb0.pdf
    • https://static.usrfiles.com/ugd/5e8de6_56504b96cb9746e1acacaf7db61f1a9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_b72dee6326534a7fa73e2601425d7c25.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae80f6fee66a4a9f925403b7e292f7fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2fc01be6ca84681814b5d766f228403.pdf
    • https://static.usrfiles.com/ugd/40512e_839992dd813449af9c52bc92933e1632.pdf
    • https://static.usrfiles.com/ugd/225520_2f09ffabd7fe4353ac232d98c9832bf2.pdf
    • https://static.usrfiles.com/ugd/aa14a9_302e6da555a54b8b8820cffb8492bc08.pdf
    • https://static.usrfiles.com/ugd/f55bec_557b66cd802940bfaedfe5e7a9e77b55.pdf
    • https://static.usrfiles.com/ugd/a48928_b4cf6f1be31c4b7a98084bb65ff90df7.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/ziraramavivol.pdf
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/81908354211.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_off0000652e.bin
f603eb70f4141cb8c7dee72311aa4774aa80b00412d1db4f3ada5e4f0a63460e
pdf-font-stream PDF embedded font (sfnt) at offset 0x652E 5248 bytes
font_01_sfnt_off00007714.bin
2c91d46a8b8ae5e5a12cdc21dabc30d8cbb782b2c7b0792ffaa14ff475404b90
pdf-font-stream PDF embedded font (sfnt) at offset 0x7714 10872 bytes