Malicious PDF — malware analysis report

Static analysis result for SHA-256 54703f884b45ccbf…

MALICIOUS

PDF

46.7 KB Created: 2020-08-14 08:14:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d44e81a6734b8465e94da972b74137eb SHA-1: 19f8c8af911eb395ad14414707e8e4e2b944e838 SHA-256: 54703f884b45ccbfe86f5179a76604f30e2bfdd4dfda6d08e5a0d813a10a1e78
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document also hosts a large number of other PDF files on Shopify domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, and the embedded URL heuristic confirms the presence of a link within the document.

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.cc/pify?keyword=thaumcraft+golems+guide
    • http://files.theridingtherapycenter.org/uploads/1/3/0/8/130814529/buvexomuvogivex.pdf
    • http://wulen.nauigreendiver.org/uploads/1/3/1/8/131856372/ecaf2cf59b.pdf
    • http://timopujim.deartatay-paghigmata.com/uploads/1/3/0/7/130740450/teputiweba_buporerev_buwesojexafosu.pdf
    • http://files.theironox.com/uploads/1/3/1/4/131408103/wosovogupevako.pdf
    • http://fatujub.youtrition.co.uk/uploads/1/3/2/6/132695569/0b7e63e1cd.pdf
    • https://cdn.shopify.com/s/files/1/0434/8336/5528/files/51877083033.pdf
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/watululafegagobokususu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/wordpress_get_current_user.pdf
    • https://cdn.shopify.com/s/files/1/0430/4951/7205/files/display_7_segmentos_4_digitos_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/6533/4165/files/malajifoxetigere.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/78812154976.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/6727742317.pdf
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/74153802316.pdf
    • https://cdn.shopify.com/s/files/1/0432/6267/3054/files/kizorovimiroriwupa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0151/1077/files/bahrain_economic_outlook_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/juwerigonowimexibulur.pdf
    • https://cdn.shopify.com/s/files/1/0447/9365/9543/files/97220304818.pdf
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/99976051681.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3218030698.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/
    • https://cdn.shopify.com/s/files/1/0433/0687/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007847.bin
d7973e44a600a3ab33cf8ebda5d0a9b4f30a726b247c60ef0c0270c6af5b5798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7847 5384 bytes
font_01_sfnt_off00008a6c.bin
387c83a5f5f2705d24f884ae7b090f51d1eb81db1bb924f1100629be8bba2536		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6C 10340 bytes

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