Malicious PDF — malware analysis report

Static analysis result for SHA-256 622a3c98c246d451…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 01:54:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a0c8be147e15027d09018cd8a1de45a SHA-1: c3e6a086a7fa70dede131fb703d6a32bb53a80b4 SHA-256: 622a3c98c246d45135931f221e76206659101bbb22c4a70113044e130f07820e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'ttraff.com'. The document body, though partially corrupted, contains the same URL and text suggesting a lure. The ML classifier strongly indicates maliciousness, and the presence of many external links points to a link farm or SEO abuse tactic to distribute malicious content.

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/pify?keyword=le+branhamisme+pdf
    • http://vaxivosav.richardhstephens.com/uploads/1/3/0/8/130813612/7029758.pdf
    • http://poxed.oakleafcounselling.org/uploads/1/3/0/7/130775897/4c56963.pdf
    • http://files.annettedelcanto.com/uploads/1/3/1/4/131406412/0af1fa5441bb7.pdf
    • http://files.treeoflifeanglican.org/uploads/1/3/1/3/131383541/8b56a843d3fdd42.pdf
    • http://files.sagegardeners.org/uploads/1/3/1/4/131408970/72ac8c088.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18983443830.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/vejeguj.pdf
    • https://cdn.shopify.com/s/files/1/0437/9839/7085/files/semegoketonekenebew.pdf
    • https://cdn.shopify.com/s/files/1/0429/4692/0615/files/bemonevafagivusizupematun.pdf
    • https://cdn.shopify.com/s/files/1/0432/5474/3200/files/norujiwirazazigirixax.pdf
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/electric_circuits_10th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0487/files/jegesuwotesofew.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/fevegujuxufalegewudigox.pdf
    • https://cdn.shopify.com/s/files/1/0431/8262/0834/files/taxefilabusiver.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/69317462463.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/xivunamapenosiva.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/26164728818.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006620.bin
c7c0416a95534afbfc6cd9fddcfcf9e0bc1e99b434bf97c9400358bef811b777		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6620 5328 bytes
font_01_sfnt_off0000780c.bin
047171f6f722bbf72f0344889413651a15b1d6810e40ac41f2c29b674c82f1ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x780C 10228 bytes

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