Malicious PDF — malware analysis report

Static analysis result for SHA-256 f516fe24cddaafdf…

MALICIOUS

PDF

34.0 KB Created: 2020-08-19 22:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acbc38c43c823f94fbd099316d372222 SHA-1: 4e66adcefa05f7989734aa0c9b43bd7e572922aa SHA-256: f516fe24cddaafdf4aed1884cc413b4c0ae6bc0a7f093188f8be2c425055693e
150 Risk Score

Malware Insights

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

The PDF document contains a link farm and a specific redirector URL that is flagged as malicious. The document body, though heavily obfuscated, contains text referencing "Adobe support advisor for windows 10" and the malicious redirector URL. This suggests the document is designed to lure users into clicking the malicious link, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=adobe+support+advisor++for+windows+10
    • http://files.elkocountyteachers.com/uploads/1/3/2/6/132681356/6838980.pdf
    • http://files.stpaulsyouthmissioninmotion.com/uploads/1/3/2/6/132696146/zukidikodu.pdf
    • http://files.jilliansapothecary.net/uploads/1/3/1/4/131455158/boporag.pdf
    • http://fegon.greenpointpianostudio.com/uploads/1/3/2/6/132681513/wuxekapuwetonil.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/bosezajimim.pdf
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/susidewapis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/juzopuzenafososokazulu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/sumepi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/tegerunov.pdf
    • https://cdn.shopify.com/s/files/1/0433/3826/8827/files/9640277684.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/zedixofi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9309/6600/files/60332232976.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/86383316438.pdf
    • https://cdn.shopify.com/s/files/1/0430/8241/6281/files/mobogenie_app_2019.pdf
    • https://cdn.shopify.com/s/files/1/0448/9605/9547/files/caballo_de_troya_gratis_libro.pdf
    • https://cdn.shopify.com/s/files/1/0436/8039/9513/files/woneduvopikumadet.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/11346674074.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_off000047fc.bin
23e22de0fb64070f1da77d2803851ca919ca462b5a6b04c26becf54dab860464		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47FC 5476 bytes
font_01_sfnt_off00005ac3.bin
c6b3b4294bfa6f3f107dda7b3ebd6cff9d6807669ec28833ba423212b7de6b4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC3 9372 bytes

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