Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef06677ad1279a5…

MALICIOUS

PDF

83.7 KB Created: 2020-08-09 13:45:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90e03ba565b9c6feaed059e1c243a4b3 SHA-1: daa78e1b1a721b88c8151c60c186a02621b18cd7 SHA-256: eef06677ad1279a587b8169dfd5b3de6cc689cd0ba0cc550efaa370d911c809a
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=livre+apprendre+anglais+pdf. Another critical heuristic indicates the presence of a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, also contains the same malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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=livre+apprendre+anglais+pdf
    • http://lakijutad.saricaine.org/uploads/1/3/1/4/131438477/mubil.pdf
    • http://files.caelanstokkermansarts.com/uploads/1/3/0/8/130815009/3721764.pdf
    • http://files.eguastella.com/uploads/1/3/1/8/131871690/4656610.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/crompton_greaves_ceiling_fan_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/chrome_storage_sync.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/addictive_thinking.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/lonozopuromavakukorek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/57282757000.pdf
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/notutinitopize.pdf
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/maliweregino.pdf
    • https://cdn.shopify.com/s/files/1/0433/7093/8533/files/binomial_and_poisson_distribution_examples.pdf
    • https://cdn.shopify.com/s/files/1/0432/8210/4478/files/zumilebopojufelol.pdf
    • https://cdn.shopify.com/s/files/1/0435/2173/6859/files/ridevugulozevenunofile.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/30683131278.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/papitanezerobakilukofa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6693/0840/files/52480698559.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e245.bin
7feb82ce7b2fa931dbc106917537ba22ae0386406a51b4fc7b6059bd6a387fc8
pdf-font-stream PDF embedded font (sfnt) at offset 0xE245 5208 bytes
font_01_sfnt_off0000f41c.bin
d2bf06d66f098256aff9477242b7a8009bfc02e7603fd0f345c064a67343f109
pdf-font-stream PDF embedded font (sfnt) at offset 0xF41C 17972 bytes
font_02_sfnt_off000129e6.bin
77d7926b336ef7d78780a01a33a70d9b42ca603379139c4de093f695c05d1900
pdf-font-stream PDF embedded font (sfnt) at offset 0x129E6 16272 bytes