Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb484be2e6946d22…

MALICIOUS

PDF

56.6 KB Created: 2020-08-10 02:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e7dc8d5df42755b127a2dd031867c02 SHA-1: 00331c127cf84cd01655455bf121e2e3a94c41d0 SHA-256: fb484be2e6946d22fdaacac3e4e95dc5cd46a2bfdd3cbd30f3c0e7b34da2ad2e
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a nutritional treatment PDF. This indicates a phishing or scam attempt. The PDF also hosts a large number of external links, many pointing to Shopify, likely as part of a link farm to improve search engine ranking for malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=artritis+reumatoide+tratamiento+nutricional+pdf
    • http://files.coaldalealliance.org/uploads/1/3/0/8/130874633/666007.pdf
    • http://mifozisuf.turkeytimesports.com/uploads/1/3/2/8/132814930/xemuzovepe-gujugoxizoxakug.pdf
    • http://xisix.cosmorotica.com/uploads/1/3/1/3/131398591/xutib-nanegesuvut-vaginik.pdf
    • http://files.learning-chemistry.com/uploads/1/3/1/4/131407135/todevuvilabedimatav.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/xuginu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6968/6431/files/tudik.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/51214432633.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/6026492331.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/1978778491.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vonabubabosutogoxofe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9970/9855/files/doluxugenixigetevalesaz.pdf
    • https://cdn.shopify.com/s/files/1/0445/8423/9268/files/cancer_pulmonar_diagnostico.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/90470683859.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/breatharian_books.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_off00008e42.bin
94e69226e44503da2b1588b43991b6606294ee8e94a2fdd2224218653375b240		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E42 5172 bytes
font_01_sfnt_off00009fbc.bin
0972dd3f6beb17b4a2999d83d2d97681b2afb966a0a65657ccba5f24c8b76739		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FBC 11508 bytes
font_02_sfnt_off0000c51c.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC51C 4324 bytes

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