Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce507ae5336af8c5…

MALICIOUS

PDF

40.3 KB Created: 2020-08-29 13:27:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8dee493f55675cd8bdb44176d14eb7f SHA-1: 21bec4bd59867f4b0a9a3beb595b201e79e3d618 SHA-256: ce507ae5336af8c5b8a635a00830aa052ca808c9b9ba7b668cb00410f40139a8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute the malicious content. No scripts were extracted, but the redirector URL is the highest priority IOC.

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/wix?keyword=polish+for+dummies
    • https://static.usrfiles.com/ugd/b8c837_feaca2158ed345b5a23ce8cb5d1b11aa.pdf
    • https://static.usrfiles.com/ugd/b8c837_7bc36a9f5104486ca7fc52d0f3f10884.pdf
    • https://static.usrfiles.com/ugd/565485_4d8a0e84f86a472183da1f7823079443.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a51ace335d449dfbfbc25211c618425.pdf
    • https://cdn.shopify.com/s/files/1/0434/9716/0866/files/angularjs_html_to.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/free_academic_journals.pdf
    • https://cdn.shopify.com/s/files/1/0434/6383/5814/files/favejidujedimudosi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7745/9365/files/73102494519.pdf
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/rasujuvigijirokowajerija.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/sijunukoxorerafetiz.pdf
    • https://cdn.shopify.com/s/files/1/0461/7489/6281/files/carta_de_colores_y_tuberias.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/legusinegojowutanadim.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/gawavudanugo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/89257744140.pdf
    • https://cdn.shopify.com/s/files/1/0434/4807/4405/files/51595187802.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_off0000604d.bin
bd40cba64a3f77e43c46ca6021ebbc08daeb668521ee92749fb2a1ea55891ac8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x604D 4936 bytes
font_01_sfnt_off000070ec.bin
9745f70e2f7117f37ed03a03f4c6afb790f57477ce1a28391bbd5f0a417a1a2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70EC 11084 bytes

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