Malicious PDF — malware analysis report

Static analysis result for SHA-256 9955c0cce82a7e9e…

MALICIOUS

PDF

34.7 KB Created: 2020-08-11 23:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f2a749e64df0003d9013f14177a3e32 SHA-1: c2b60cd41840bf119c66a87758cb78af95194db7 SHA-256: 9955c0cce82a7e9e081a6c28dc62d6fefd590456da9d723eb52ddaf1ffb3e488
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'ecz chemistry past papers pdf' and the malicious URL, suggesting a lure for academic content. The primary malicious URL is https://ttraff.ru/pify?keyword=ecz+chemistry+past+papers+pdf, which likely leads to further malicious content. The presence of many Shopify links, some confirmed benign, suggests an attempt to blend in with legitimate 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=ecz+chemistry+past+papers+pdf
    • http://wulete.bayanhajj.com/uploads/1/3/2/6/132681862/jitavulobedegal.pdf
    • http://files.goldinglandrill.com/uploads/1/3/2/8/132814250/velimi.pdf
    • http://files.gzastava.com/uploads/1/3/1/1/131164456/12ec067ce8.pdf
    • https://cdn.shopify.com/s/files/1/0431/3910/4929/files/dunexugura.pdf
    • https://cdn.shopify.com/s/files/1/0434/6377/0272/files/49329541995.pdf
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/learning_german_language_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3575/files/pradhan_mantri_rural_awas_yojana_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/37033073319.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/6523853772.pdf
    • https://cdn.shopify.com/s/files/1/0454/3532/2526/files/analytical_balance_me204.pdf
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/61666302074.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/ubqari_magazine_april_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/butarag.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/tapatigoba.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_off000049ec.bin
d9a21c08ff53b88d7a289df3b5b265a1ec06a410c6f44c2ebc83e7c215839a93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49EC 5472 bytes
font_01_sfnt_off00005c6f.bin
7cf7f1c12556fe249c31e76125400c59ed73602dbc876a37753573a549dc1828		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6F 9776 bytes

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