Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e73d17c54bd2a9…

MALICIOUS

PDF

36.7 KB Created: 2020-08-25 11:40:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 568f979e1c14c73b34df4444c4fe3736 SHA-1: 09e1b9d7b9082567abf6a7dacc9263120376b397 SHA-256: 56e73d17c54bd2a91ff5addd5cccb0dc771d88091082d0aa1ddcda15842008bf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link, 'https://ttraff.ru/pify?keyword=teleport+photo+editor+apk+free', suggests a potential lure or redirector. The document body is heavily obfuscated and contains a mix of seemingly random characters and URLs, further supporting the idea of a malicious document designed to manipulate search engine results or redirect users to harmful content.

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.ru/pify?keyword=teleport+photo+editor+apk+free
    • http://mupujemu.wakullagridironclub.com/uploads/1/3/1/3/131398102/e80f22.pdf
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/venekajedovib.pdf
    • https://cdn.shopify.com/s/files/1/0438/3683/3952/files/33828158254.pdf
    • https://cdn.shopify.com/s/files/1/0429/7539/5993/files/lutevapitevujemelujonil.pdf
    • https://cdn.shopify.com/s/files/1/0438/8493/7384/files/trastornos_alimentarios_en_la_adolescencia.pdf
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/nivotaxewujitapalazuge.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9815/files/platform_glitter_high_heel_shoes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/62658613941.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/90493436341.pdf
    • https://cdn.shopify.com/s/files/1/0434/3391/8616/files/xaxivelumin.pdf
    • https://cdn.shopify.com/s/files/1/0434/3011/7526/files/90537683231.pdf
    • https://cdn.shopify.com/s/files/1/0431/7125/0336/files/97331390592.pdf
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/49088060939.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/80811723587.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/architecting_with_google_cloud_platform_exam.pdf
    • https://cdn.shopify.com/s/files/1/0432/7266/7296/files/xefobibamuvibe.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_off0000524c.bin
eb2c191fd1587a7762a77b9898d13e935de5e7da4484875f50406553c0d528e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x524C 4964 bytes
font_01_sfnt_off0000632a.bin
a036a4aa256dfcad0d4488af6e78968c0a7b51d66abf8bac9f1f445ec037a4cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x632A 10196 bytes