Malicious PDF — malware analysis report

Static analysis result for SHA-256 36da10d3104c7fe4…

MALICIOUS

PDF

42.8 KB Created: 2020-08-30 18:25:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 15a33bb6d279b2bdb5e946bfafa74a4a SHA-1: e274ceca22a6152002b388731e098fda85080a1d SHA-256: 36da10d3104c7fe4f9af349de40dbe88aaf6773d89399a8d607c74f94c56ae50
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com' which is flagged as a malicious redirector, disguised with a keyword related to software download. The document body, though partially corrupted, also contains this URL and other links to PDF files hosted on Shopify, likely part of a link farm to improve SEO for malicious content. The ML classifier strongly indicates maliciousness.

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.com/wix?keyword=how+to+download+pluto+tv+on+hisense
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/butimajuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/goodwill_donation_valuation_guide_2019.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/66993968053.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/nesovepiwivawav.pdf
    • https://static.usrfiles.com/ugd/83f04e_412edb06f6d44508be521bd76db06d18.pdf
    • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/stories_in_spanish.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/define_the_concept_of_administration.pdf
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/boliguv.pdf
    • https://static.usrfiles.com/ugd/b65acf_9ef9cf383f434aeeb1c6501ce873661d.pdf
    • https://static.usrfiles.com/ugd/2c8d66_b775ec9d8abc48d795bbf49e8b55cb57.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_off00006507.bin
c825c262b653007d1783cf2092fe558e6aaba649ea26086234b86da14e9e8268		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6507 5064 bytes
font_01_sfnt_off0000764f.bin
29ca8a0b3b6862a23b7198d95dff11c014ce874bd249dbce871069e693dc8b40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x764F 12528 bytes

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