Malicious PDF — malware analysis report

Static analysis result for SHA-256 3db5a0e5f7bdaa3f…

MALICIOUS

PDF

42.5 KB Created: 2020-08-15 08:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ed77e76c402689e9310594168230690 SHA-1: f4dd53633c8d5ee6344af6dabb21299efc06a16d SHA-256: 3db5a0e5f7bdaa3f5b90536a4d242216f128fd12c3c772df261e296847f6e48c
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body also contains embedded URLs and hints at a callback phishing or tech-support scam pretext. The primary malicious URL is https://ttraff.ru/pify?keyword=form+t1013+e%2528+16%2529, which is likely used to funnel victims to further malicious content.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=form+t1013+e%2528+16%2529
    • http://files.valleverdesocialclub.com/uploads/1/3/0/7/130776499/marezupovujufur-fegiwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2501/files/pavukizegekakopa.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6731/files/fufoxafifo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4167/5685/files/76264868996.pdf
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/tosukefisuf.pdf
    • https://cdn.shopify.com/s/files/1/0437/4613/2129/files/zavamewakizaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8282/5371/files/71010671159.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/ledugizetore.pdf
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/14595618140.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/gejebukavotobetak.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.pdf
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/31520526653.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1384/files/certification_letter_sample_format.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_off000069c9.bin
a8ba35291f7b8426db934d5b7ab138df5f26b25e004987c698545f8c777e57d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C9 5032 bytes
font_01_sfnt_off00007ae6.bin
68e8674cd60cad5253e21bae5a7038f541471360f76ca39a4bcf32d6590aeb41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE6 10168 bytes

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