Malicious PDF — malware analysis report

Static analysis result for SHA-256 718eceb3edebf352…

MALICIOUS

PDF

40.1 KB Created: 2020-08-20 05:38:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0920aa2fc96b5930a9207fef8e4db28 SHA-1: dd4b4e7ba13936194fee976f6fb9dd5463460dfd SHA-256: 718eceb3edebf352191d1e86b5c92e1f22e85a982e7fda2069bf66df68796c0d
194 Risk Score

Malware Insights

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

This PDF document contains a link farm and a redirector to malicious infrastructure, identified as a critical finding. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to deceive users with promises of prizes or parcels, a common tactic in advance-fee fraud. The embedded URLs, particularly the one pointing to 'ttraff.com', are likely used to deliver a secondary payload or lead the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=badland+game+apk+free++for+android
    • http://files.wellspring-creative.net/uploads/1/3/0/7/130739027/gesatinelosunaseti.pdf
    • http://waravo.elsewherebecca.com/uploads/1/3/1/8/131856890/solowepotepuru-pogape-zojedi-nosibimenifadu.pdf
    • http://zuzujux.realdisciple.org/uploads/1/3/1/6/131636719/lefiviwabu_jegiw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/7092/1635/files/72283457721.pdf
    • https://cdn.shopify.com/s/files/1/0437/6769/3474/files/78262572311.pdf
    • https://cdn.shopify.com/s/files/1/0428/7895/9775/files/dugez.pdf
    • https://cdn.shopify.com/s/files/1/0431/6787/5228/files/56137842103.pdf
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/60998811695.pdf
    • https://cdn.shopify.com/s/files/1/0428/3321/5654/files/dederofivolufovezububo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7874/6261/files/64631496486.pdf
    • https://cdn.shopify.com/s/files/1/0449/3259/5867/files/graduate_student_resume_template_microsoft_word.pdf
    • https://cdn.shopify.com/s/files/1/0437/7896/5656/files/38185676415.pdf
    • https://cdn.shopify.com/s/files/1/0436/2564/4192/files/50849399374.pdf
    • https://cdn.shopify.com/s/files/1/0437/1759/1191/files/60432408768.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/77447989523.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_off00005e36.bin
17785d0200672f664122088cbc0adb806da1d4b99f26cfc7365061de50bc7bac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E36 5296 bytes
font_01_sfnt_off00007021.bin
9d0eeaa27603c1c832469bce063c8b89c71082f62fbcc41bb91a2dfcf1e0eeeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7021 10392 bytes

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